The BS hard seal gate valve is a concealed wedge gate valve designed and manufactured strictly in accordance with British Standards (BS). The valve stem is located inside the valve body and only rotates during opening and closing without lifting, with a constant structural height. The sealing surface adopts a metal to metal hard sealing structure (such as alloy steel or stainless steel) to form a reliable hard sealing pair. The valve connection end complies with the British standard flange standards (such as BS 4504, BS 10) and is suitable for pipeline systems that follow the British standard system. This valve is designed specifically for medium to high pressure, high temperature, and wear-resistant working conditions, and is an ideal choice for Commonwealth countries and engineering projects that adopt British standard design. Widely used in municipal water supply, sewage treatment, petrochemicals, electricity, ships, and industrial pipeline systems in Commonwealth countries, especially suitable for engineering projects designed with British standards. Commonly used as a reliable cutoff device for medium and high pressure pipelines transporting water, steam, oil, gas, and weakly corrosive media. Widely used in municipal water supply, sewage treatment, petrochemicals, electricity, ships, and industrial pipeline systems in Commonwealth countries, especially suitable for engineering projects designed with British standards. Commonly used for transporting water, steam, oil, gas, and weakly corrosive media in medium and high pressure pipelines, as a key cutting device that requires intuitive display of opening, easy monitoring, and maintenance.DIN Standard Metal-Seated Gate Valve Product DrawingCharacteristic 1. Compliant with British standard specificationsThe design, dimensions, testing, and acceptance strictly follow British standards (such as BS 5163, BS 3464, BS 4504), and the pressure rating, structural length, and flange size fully comply with British standard requirements, ensuring international universality and compliance.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the operator can accurately determine the valve opening by observing the height of the valve stem extension, which facilitates system process control and safety management.3. Metal hard seal (hard seal)The sealing surface of the valve disc and seat is made of alloy steel (such as 13Cr) or stainless steel with welding/hardening treatment, which has high hardness, wear resistance, erosion resistance, and high temperature resistance. It is suitable for steam, hot water, oil, and particulate media, and has a long service life.4. British standard flange connectionThe connection end shall comply with BS 4504 or BS 10 standard flanges (such as PN10/16/25, Table D/E/F), and the sealing surface shall be flat or protruding, which is perfectly compatible with British standard piping systems.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems.6. The valve stem seal is reliable and can be maintained onlineThe valve stem seal adopts multi-layer packing or formed packing, and is equipped with an upper sealing structure. When the valve is fully open, the packing can be replaced online without disassembling the valve for easy maintenance.

Overview:The Z41H stainless steel gate valve is an industrial-grade rising stem flanged gate valve designed and manufactured in strict compliance with national standards. It is integrally cast and machined from high-quality stainless steel. The valve stem drives a wedge-shaped gate plate to vertically lift and lower within the valve cavity, enabling precise shut-off or open control of pipeline media flow. Featuring a metal-to-metal hard seal structure (“H” type seal), the valve seat and gate sealing surfaces undergo precision grinding or carbide overlay welding to form a highly reliable sealing pair. Combining corrosion resistance with high-temperature and high-pressure capabilities, it is particularly suitable for industrial piping systems demanding strict material purity, sealing reliability, and extended service life. Widely applied in pipeline systems across petrochemical, food and pharmaceutical, water treatment, marine, and energy industries, it handles media including water, steam, oil products, chemicals, and gases. This valve serves as a dependable shut-off device for corrosive conditions or clean systems. Z41H Stainless Steel Gate Valve Product Diagram Features:1. Excellent corrosion resistance: Key components such as the valve body, bonnet, and gate are manufactured from high-quality stainless steel (e.g., 304, 316, WCB), providing robust resistance against various corrosive media and ensuring extended service life.2. High-Temperature and High-Pressure Performance: Features a metal hard-seal structure with wear-resistant and scratch-resistant sealing pairs. Capable of withstanding elevated operating temperatures and pressures, delivering stable and reliable performance that far exceeds the service limitations of soft-seal gate valves.3. Low Flow Resistance and Unobstructed Flow: Incorporates a fully straight-through flow path design, minimizing medium flow resistance and reducing the likelihood of sedimentation and blockage. Particularly suitable for systems with stringent pressure loss requirements.4. Visible stem structure for intuitive position indication: The vertical movement of the valve stem directly indicates the valve opening degree, facilitating operator observation and judgment to prevent misoperation while simplifying maintenance.5. High versatility and broad applicability: Combining stainless steel corrosion resistance with the temperature and pressure tolerance of metal hard seals, it serves as a universal valve choice across multiple industries including petroleum, chemical, and power generation.

OverviewThe Z41W-150LB American Standard Gate Valve is a rising stem gate valve designed and manufactured according to American standards (such as API and ANSI). It controls fluid flow by vertically lifting or lowering the gate plate. During operation, the valve stem moves in tandem with the gate plate, providing clear position indication. The valve's core feature lies in its “W” designation, indicating a sealing surface machined directly from the valve body material. This typically forms a metal-to-metal hard seal pairing with the metal gate. Rated at 150LB pressure, it meets corresponding American standard pressure-temperature ratings and is suitable for various demanding industrial applications. Widely adopted in petroleum, chemical, power generation, natural gas, and shipbuilding industries adhering to American standards or requiring international compatibility, this valve reliably serves as shut-off equipment in pipelines transporting water, steam, petroleum products, natural gas, and non-aggressive media. It plays a critical role in applications demanding strict isolation and complex operating conditions. Z41W-150LB美标闸阀产品图Z41W-150LB American Standard Gate Valve Product Drawing Features:1. American Standard Pressure Rating: The valve is designed to American standards with a pressure rating of 150 lbs (150LB). Its dimensions, structural length, and performance testing comply with relevant American standards, ensuring international compatibility.2. Metal Hard Sealing: The valve body sealing surface is machined directly from the body material or overlaid with other alloys, forming a hard sealing pair with the metal gate. This design offers wear resistance, high-temperature tolerance, and suitability for various harsh media.3. Rising Stem Structure: The valve stem's up/down position is clearly visible, allowing operators to accurately determine the valve's open status. This facilitates system process control and safe production.4. Low Flow Resistance, Unobstructed Flow: Features full-bore or reduced-bore design (typically reduced-bore), with a streamlined passage minimizing fluid resistance. Particularly suitable for petroleum and chemical pipelines with specific pressure drop requirements.5. Versatility and Durability: Constructed with robust materials like carbon steel or stainless steel, ensuring stable and reliable performance. Widely applicable for diverse media including water, steam, petroleum products, and natural gas.

Z941W electric gate valve is a rising stem wedge gate valve driven by an electric actuator and connected by a flange. It drives the reduction mechanism through a motor to lift and lower the valve stem, causing the wedge gate to move vertically and achieve the opening and closing of the pipeline. The valve body can be made of various materials such as carbon steel and stainless steel, and the sealing surface is directly machined from the valve body material ("W" shape) to form a hard metal to metal seal. This valve integrates a manual operating mechanism, which can perform emergency operations in case of power interruption. It is designed for remote centralized control, automated processes, and frequent opening and closing situations, and is the core execution unit for intelligent management in modern industrial pipeline systems. Widely used in automation control systems for petrochemical, power, metallurgy, municipal water supply, sewage treatment, HVAC, and general industrial pipelines, as a key cutoff device for remote operation, process interlocking, or unmanned situations. Especially suitable for modern industrial pipeline systems that require centralized monitoring, frequent operation, or integration with upper computer systems.API Standard Bevel Gear Gate Valve Product DrawingCharacteristic 1. Electric drive, remote automation controlEquipped with multi turn or partial turn electric actuators, powered by electricity, capable of receiving standard electrical signals (such as 4-20mA, switch signals) from DCS/PLC systems, achieving remote centralized control, automated operation, and process interlocking of valves.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for on-site inspection and debugging.3. Valve body sealing surface ("W" type)The sealing surface is directly processed from the valve body material, which is economical, practical, wear-resistant, and suitable for conventional media such as water, oil, and gas.4. Flange connection, stable and reliableUsing standard flange connections (such as RF and RTJ flanges), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Manual emergency operationThe top of the actuator is equipped with a handwheel or square head, and is equipped with an electric/manual switching mechanism, which can be manually operated in case of power interruption or debugging, ensuring that the system is controllable in any situation.6. Multiple protection functionsThe actuator is equipped with overload protection, overheating protection, phase protection, and mechanical/electrical limit switches, effectively preventing motor damage and ensuring safe and reliable operation.7. Optional intelligent controlOptional intelligent actuator, supporting fieldbus control, fault self diagnosis, parameter setting, and status display functions, to meet high-end automation needs.

OverviewThe Z41H-10K stainless steel JIS gate valve is a rising stem gate valve designed and manufactured in full compliance with Japanese Industrial Standards (JIS). It controls fluid flow by vertically lifting or lowering the gate plate. The valve stem rises and falls with the gate plate during operation, providing clear position indication. The valve pressure rating is “10K,” equivalent to the nominal pressure of PN10-16. Constructed from stainless steel with a metal hard seal (“H” type) sealing pair, it offers excellent corrosion resistance. This valve is suitable for industrial systems requiring material purity and compliance with specific standards. This product is widely used in Japanese-funded enterprises, equipment exported to Japan, and domestic projects strictly adhering to Japanese standards, such as chemical, pharmaceutical, food, water treatment, and Japanese-style marine industries. It is suitable for conveying water, steam, oil, gas, and various non-corrosive media, serving as critical equipment for reliable pipeline isolation within the Japanese standard system. Z41H-10K不锈钢日标闸阀产品图Z41H-10K Stainless Steel Japanese Standard Gate Valve Product DrawingFeatures1. Compliant with Japanese Standards: Valve design, dimensions, testing, and acceptance strictly adhere to relevant standards such as JIS B 2031 and JIS B 2002. With a pressure rating of 10K, it offers seamless compatibility with piping and equipment conforming to Japanese standards, ensuring high versatility.2. Stainless Steel Construction: Primary components including the valve body, bonnet, and gate plate utilize JIS-standard stainless steel materials (e.g., SCS13/SCS14 corresponding to CF8/CF8M). This provides excellent corrosion resistance, making it suitable for various corrosive media and applications with high cleanliness requirements.3. Metal Hard Seal (“H” Type): The gate and seat employ a metal-to-metal hard seal structure, typically achieved through hard alloy cladding or direct machining of stainless steel. This design offers high-temperature resistance and wear resistance, making it suitable for steam, oil, gas, and similar media.4. Rising stem design for visual status indication: The valve stem rises and falls with the gate, allowing operators to directly observe its position and accurately determine valve opening. This facilitates system operation and safety management.5. Standard flange connections: Utilizes JIS 10K standard flanges (e.g., JIS 5K/10K RF) with standardized connection dimensions and reliable sealing. This design simplifies installation and maintenance in piping projects adhering to Japanese standards.

GOST rising stem Russian standard gate valve is a rising stem wedge gate valve designed and manufactured strictly in accordance with the Russian national standard (GOST). The valve stem rises and falls together with the gate, and the valve opening can be intuitively judged by observing the height of the valve stem extension. The valve body is usually made of cast iron, cast steel or alloy steel, and the sealing surface can be welded with alloy steel to form a metal hard seal. The connection end complies with the Russian standard flange standards (such as GOST 12815, GOST 33259) and is suitable for pipeline systems in CIS countries and Eastern Europe that follow the Russian standard system. This valve is designed specifically for medium and high pressure, high temperature, and wear-resistant working conditions, and is a standard choice in engineering projects in Russia and CIS countries. Widely used in industries such as oil and gas, municipal water supply, heating pipelines, electricity, metallurgy, and chemical engineering in Russia and CIS countries, especially suitable for engineering projects designed according to GOST standards. Commonly used for transporting water, steam, oil, gas, and weakly corrosive media in medium and high pressure pipelines, as a key cutting device that requires intuitive display of opening, easy monitoring, and maintenance.GOST Standard Rising Stem Gate Valve Product DrawingCharacteristic 1. Complies with GOST Russian standard specificationsThe design, dimensions, testing, and acceptance strictly follow Russian national standards (such as GOST 5762, GOST 12815, GOST 33259), and the pressure rating, structural length, and flange size fully comply with Russian standard requirements, ensuring perfect compatibility with pipeline systems in CIS countries.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the operator can accurately determine the valve opening by observing the height of the valve stem extension, which facilitates system process control and safety management, and meets the requirements of GOST standards for operational safety.3. Metal hard sealThe sealing surface of the valve disc and seat is made of alloy steel welded or hardened, with high hardness, wear resistance, erosion resistance, and high temperature resistance. It is suitable for steam, hot water, oil, and particulate media, and has a long service life.4. Russian standard flange connectionFlanges that comply with GOST 12815 or GOST 33259 standards at the connection end (such as PN6/10/16/25/40, executing the Russian series 1 or 2), with a sealing surface in the form of a flat or protruding surface, seamlessly connected to the Russian standard pipeline system.5. Full bore design with low flow resistanceAdopting a full bore flow channel with low medium flow resistance and pressure loss, it is suitable for high flow conveying systems and meets the hydraulic performance requirements of GOST.6. Multiple materials to choose fromThe valve body material can be selected from gray cast iron (СЧ), ductile iron (Ч), cast steel (20 Ч, 25 Ч), alloy steel (15 ХМ), stainless steel (12 Х 18 Н 9 Т), etc., to meet the requirements of different media and working conditions, and has a wide range of applicable temperatures.7. Suitable for extremely cold climatesFor the severe cold climate in Russia and the CIS countries, low-temperature resistant materials and extended valve cover structures can be selected to prevent the packing box from freezing and ensure reliable operation of the valve in low-temperature environments.

JIS rising stem Japanese standard hard seal gate valve is a rising stem wedge gate valve designed and manufactured strictly in accordance with Japanese Industrial Standards (JIS). The valve stem rises and falls together with the gate, and the valve opening can be intuitively judged by observing the height of the valve stem extension. The sealing surface adopts a metal to metal hard sealing structure (such as alloy steel welding) to form a reliable hard sealing pair. The connection end complies with Japanese standard flange standards (such as JIS B 2238, JIS B 2210) and is suitable for pipeline systems in Japan and Asia that follow the Japanese standard system. This valve is designed specifically for medium and high pressure, high temperature, and wear-resistant working conditions, and is an ideal choice for Japanese funded enterprises, export equipment to Japan, and engineering projects that adopt Japanese standard design. Widely used in petrochemical, municipal water supply, sewage treatment, power, shipbuilding, and general industrial pipeline systems in Japan and Asian countries (such as South Korea and Southeast Asia) that adopt Japanese standard design. Especially suitable for Japanese owned enterprises' factories in China, export equipment to Japan, and engineering projects constructed according to JIS standards. Commonly used for transporting water, steam, oil, gas, and weakly corrosive media in medium and high pressure pipelines, as a key cutting device that requires intuitive display of opening, easy monitoring, and maintenance.JIS Standard Rising Stem Metal-Seated Gate Valve Product DrawingFeatures1. Complies with JIS Japanese standard specificationsThe design, dimensions, testing, and acceptance strictly follow Japanese industrial standards (such as JIS B 2031, JIS B 2002, JIS B 2210), and the pressure rating, structural length, and flange size fully comply with Japanese standard requirements, ensuring perfect compatibility with Japanese standard piping systems.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the operator can accurately judge the valve opening by observing the height of the valve stem extension, which is convenient for system process control and safety management, and meets the requirements of Japanese standards for operational visibility.3. Metal hard seal (hard seal)The sealing surface of the valve disc and seat is made of alloy steel (such as 13Cr, SCS13 hardened treatment) with high hardness, wear resistance, erosion resistance, and high temperature resistance. It is suitable for steam, hot water, oil, and particulate media, and has a long service life.4. Japanese standard flange connectionFlanges with connection ends that comply with JIS B 2238 or JIS B 2210 standards (such as 5K, 10K, 16K, 20K pressure ratings), with sealing surfaces in the form of flat or protruding surfaces, seamlessly interface with Japanese standard piping systems.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems and meeting the hydraulic performance requirements of Japanese standards.6. Multiple materials to choose fromThe valve body material can be selected from gray cast iron (FC), ductile iron (FCD), cast steel (SCPH), stainless steel (SCS13/SCS14), etc., to meet the requirements of different media and working conditions, with a wide range of applicable temperatures.

The BS hard seal gate valve is a concealed wedge gate valve designed and manufactured strictly in accordance with British Standards (BS). The valve stem is located inside the valve body and only rotates during opening and closing without lifting, with a constant structural height. The sealing surface adopts a metal to metal hard sealing structure (such as alloy steel or stainless steel) to form a reliable hard sealing pair. The valve connection end complies with the British standard flange standards (such as BS 4504, BS 10) and is suitable for pipeline systems that follow the British standard system. This valve is designed specifically for medium to high pressure, high temperature, and wear-resistant working conditions, and is an ideal choice for Commonwealth countries and engineering projects that adopt British standard design. Widely used in municipal water supply, sewage treatment, petrochemicals, electricity, ships, and industrial pipeline systems in Commonwealth countries, especially suitable for engineering projects designed with British standards. Commonly used as a reliable cutoff device for medium and high pressure pipelines transporting water, steam, oil, gas, and weakly corrosive media. Widely used in municipal water supply, sewage treatment, petrochemicals, electricity, ships, and industrial pipeline systems in Commonwealth countries, especially suitable for engineering projects designed with British standards. Commonly used for transporting water, steam, oil, gas, and weakly corrosive media in medium and high pressure pipelines, as a key cutting device that requires intuitive display of opening, easy monitoring, and maintenance.Characteristic 1. Compliant with British standard specificationsThe design, dimensions, testing, and acceptance strictly follow British standards (such as BS 5163, BS 3464, BS 4504), and the pressure rating, structural length, and flange size fully comply with British standard requirements, ensuring international universality and compliance.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the operator can accurately determine the valve opening by observing the height of the valve stem extension, which facilitates system process control and safety management.3. Metal hard seal (hard seal)The sealing surface of the valve disc and seat is made of alloy steel (such as 13Cr) or stainless steel with welding/hardening treatment, which has high hardness, wear resistance, erosion resistance, and high temperature resistance. It is suitable for steam, hot water, oil, and particulate media, and has a long service life.4. British standard flange connectionThe connection end shall comply with BS 4504 or BS 10 standard flanges (such as PN10/16/25, Table D/E/F), and the sealing surface shall be flat or protruding, which is perfectly compatible with British standard piping systems.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems.6. The valve stem seal is reliable and can be maintained onlineThe valve stem seal adopts multi-layer packing or formed packing, and is equipped with an upper sealing structure. When the valve is fully open, the packing can be replaced online without disassembling the valve for easy maintenance.

BS British standard concealed stem hard seal gate valve is a concealed stem wedge gate valve designed and manufactured strictly in accordance with British standards (BS). The valve stem is located inside the valve body and only rotates during opening and closing without lifting, with a constant structural height. The sealing surface adopts a metal to metal hard sealing structure (such as alloy steel or stainless steel) to form a reliable hard sealing pair. The valve connection end complies with the British standard flange standards (such as BS 4504, BS 10) and is suitable for pipeline systems that follow the British standard system. This valve is designed specifically for medium to high pressure, high temperature, and wear-resistant working conditions, and is an ideal choice for Commonwealth countries and engineering projects that adopt British standard design. Widely used in municipal water supply, sewage treatment, petrochemicals, electricity, ships, and industrial pipeline systems in Commonwealth countries, especially suitable for engineering projects designed with British standards. Commonly used as a reliable cutoff device for medium and high pressure pipelines transporting water, steam, oil, gas, and weakly corrosive media.BS Standard Non-Rising Stem Metal-Seated Gate Valve Product DrawingCharacteristic 1. Compliant with British standard specificationsThe design, dimensions, testing, and acceptance strictly follow British standards (such as BS 5163, BS 3464, BS 4504), and the pressure rating, structural length, and flange size fully comply with British standard requirements, ensuring international universality and compliance.2. Compact structure of concealed poleThe valve stem is built-in without lifting, with a constant installation height, saving vertical space, and is particularly suitable for installation in confined spaces such as valve wells and basements.3. Metal hard seal (hard seal)The sealing surface of the valve disc and seat is made of alloy steel (such as 13Cr) or stainless steel with welding/hardening treatment, which has high hardness, wear resistance, erosion resistance, and high temperature resistance. It is suitable for steam, hot water, oil, and particulate media.4. British standard flange connectionThe connection end shall comply with BS 4504 or BS 10 standard flanges (such as PN10/16/25, Table D/E/F), and the sealing surface shall be flat or protruding, which is perfectly compatible with British standard piping systems.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems.

Z41H forged steel flange gate valve is a rising stem wedge gate valve manufactured with forged steel valve body and flange connection. The valve body is formed through forging process, with a dense internal structure and better mechanical properties than castings. The valve is driven by a handwheel to lift and lower the valve stem, which in turn drives the wedge gate to open and close the pipeline. The sealing surface adopts alloy steel overlay welding ("H" type) to form a metal hard seal. This valve is designed specifically for high pressure, high temperature, and critical working conditions, with higher strength, toughness, and reliability, making it an ideal choice for demanding pipelines in industries such as petroleum, chemical, and power. Widely used in petrochemical plants, refineries, power plant boiler feedwater systems, high-pressure steam pipelines, natural gas gathering and transportation pipelines, and high-temperature and high-pressure process pipelines with strict requirements for valve strength, sealing, and durability, as a key cutoff equipment.Z41H Forged Steel Flanged Gate Valve Product DrawingCharacteristic1. Forged steel valve body, high strengthThe valve body is forged from high-quality forged steel (such as A105, F304, F316), with a dense structure, no casting defects, high mechanical strength, and good impact resistance, suitable for high pressure and fatigue conditions.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for operation and maintenance.3. Alloy steel hard seal ("H" type)The sealing surface of the valve disc and seat is welded with hard alloy (such as 13Cr, Stellite), which has high hardness, wear resistance, erosion resistance, high temperature resistance, reliable sealing, and long service life.4. Flange connection, stable and reliableUsing standard flange connections (such as RF, RTJ), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Suitable for high temperature and high pressure working conditionsThe overall structure and material selection make it suitable for higher working pressures (such as PN16-PN100) and temperatures (-29 ℃~425 ℃), with stable performance.6 full bore design, low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for systems with pressure drop requirements

Z61Y forged steel welded gate valve is a rising stem wedge gate valve manufactured with a forged steel valve body and welded end connection. The valve body is formed through forging process, with a dense internal structure and excellent mechanical properties. The valve is driven by a handwheel to lift and lower the valve stem, which in turn drives the wedge gate to open and close the pipeline. The sealing surface adopts hard alloy overlay welding ("Y" type) to form a high-performance metal hard seal. Prefabricated welding grooves at both ends can be directly welded to the pipeline to form a permanent, zero leakage connection. This valve is designed specifically for high temperature, high pressure, and harsh working conditions, making it an ideal choice for industries such as power plants and petrochemicals. Mainly welded and installed in the main steam system of power plant boilers, high-pressure feedwater pipelines, petrochemical hydrogenation units, synthetic ammonia process pipelines, nuclear power plant auxiliary systems, and other high-temperature and high-pressure critical pipe sections with extreme requirements for connection reliability, sealing, and pressure bearing capacity, as permanent and high safety cutoff equipment.Z61Y Forged Steel Butt-Weld Gate Valve Product Drawing Features1. Forged steel valve body, excellent strengthThe valve body is forged with high-quality forged steel (such as A105, F22, F304, F316), which has a dense structure, no casting defects, high mechanical strength, excellent impact resistance, and is suitable for high pressure and fatigue conditions.2. Welding connection, absolute sealingBoth ends are equipped with standard welding grooves, which are directly welded to the pipeline to eliminate the risk of flange gasket leakage. The connection strength is high and can withstand high temperature, high pressure, and thermal stress cycles.3. Hard alloy seal ("Y" type)The sealing surface of the valve disc and seat is welded with high hardness alloys such as Stellite, which have high hardness, wear resistance, high temperature resistance, erosion resistance, excellent sealing performance, and long service life.4. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for operation and maintenance.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for systems with strict pressure drop requirements.6. Suitable for extreme working conditionsThe overall structure and material selection make it suitable for higher working pressures (such as PN100-PN400) and temperatures (up to 600 ℃), with stable and reliable performance.

Z941W electric gate valve is a rising stem wedge gate valve driven by an electric actuator and connected by a flange. It drives the reduction mechanism through a motor to lift and lower the valve stem, causing the wedge gate to move vertically and achieve the opening and closing of the pipeline. The valve body can be made of various materials such as carbon steel and stainless steel, and the sealing surface is directly machined from the valve body material ("W" shape) to form a hard metal to metal seal. This valve integrates a manual operating mechanism for emergency operation in case of power interruption. It is widely used in automation control systems for petrochemical, power, metallurgy, municipal water supply, sewage treatment, HVAC, and general industrial pipelines as a key cutoff device for remote operation, process interlocking, or unmanned situations. Especially suitable for modern industrial pipeline systems that require centralized monitoring, frequent operation, or integration with upper computer systems. The design of intermediate control, automated processes, and frequent opening and closing scenarios is the core execution unit for achieving intelligent management in modern industrial pipeline systems.Z941W电动闸阀产品图特点1.电动驱动，远程自动化控制配备多回转或部分回转电动执行器，以电力为动力源，可接收DCS/PLC系统的标准电信号（如4-20mA、开关量信号），实现阀门的远程集中控制、自动化操作和流程联锁。 2.明杆结构，阀位直观阀杆随闸板升降，可通过观察阀杆伸出高度直接判断阀门开度，便于现场巡检与调试。 3.阀体密封面（“W”型）密封面由阀体材料直接加工而成，经济实用，耐磨损，适用于水、油品、气体等常规介质。 4.法兰连接，稳固可靠采用标准法兰连接（如RF、RTJ法兰），连接强度高，密封性能好，便于安装与拆卸。 5.手动应急操作执行器顶部配有手轮或方头，并设有电动/手动切换机构，可在电源中断或调试时进行手动操作，确保系统在任何情况下可控。 6.多重保护功能执行器内置过载保护、过热保护、相位保护及机械/电气限位开关，有效防止电机损坏，运行安全可靠。 7.智能控制可选可选配智能型执行器，支持现场总线控制、故障自诊断、参数设定及状态显示等功能，满足高端自动化需求。

ZZG electric high-temperature and high-pressure wedge gate valve is a high-end industrial isolation device widely used in thermal power plants, petrochemicals, and metallurgical systems. This valve consists of a high-torque multi-turn electric actuator and a high-strength wedge gate valve body. Its core design utilizes the mechanical wedging force of the wedge-shaped gate to achieve a tight bi-directional seal under extreme temperature and pressure environments. Controlled by system commands, the actuator drives the stem and gate in a vertical reciprocating motion to achieve automated opening and closing of steam, hot water, and oil pipelines. With its superior pressure-bearing capacity and erosion resistance, the ZZG series is a critical isolation component for ensuring the long-term operation of high-load systems.Product Image of ZZG Electric High-Temperature and High-Pressure Wedge Gate Valve Feature1.Wedge gate for self-tightening seal:Utilizes a flexible wedge gate structure that combines mechanical wedging force with medium pressure compensation, ensuring zero leakage under extreme differential pressures and preventing seat scoring.2.Alloy structure for extreme temperature and pressure:The body is made of premium cast steel or Cr-Mo alloy steel with sufficient wall thickness to withstand temperatures up to 560°C and pressures up to 16.0MPa.3.Hard alloy sealing surfaces:The gate and seat sealing faces are hard-faced with Stellite cobalt-based alloy, providing excellent hot hardness and wear resistance against high-temperature steam erosion and scaling.4.Powerful and reliable electric drive:Equipped with high-performance multi-turn electric actuators providing high torque and self-locking capabilities. Supports remote DCS control and local manual override for accurate response.5.Optimized full-bore flow path:The full-bore design ensures minimal resistance to the medium, with a resistance coefficient similar to a straight pipe of the same diameter, significantly reducing system pressure drop and energy loss.6.Double seal for enhanced safety:The stem seal uses high-performance flexible graphite packing and is equipped with a back-seat structure, ensuring zero external leakage and allowing for emergency packing replacement under pressure.7.Intelligent protection and feedback:The actuator features built-in overload protection, torque sensing, and stroke limits. Accurate valve position feedback signals facilitate integration into complex industrial logic interlock systems.8.Standardized design for easy maintenance:Manufactured according to international valve standards with high component interchangeability. Modular layout of wearing parts simplifies on-site inspection and routine maintenance tasks.

Z641W pneumatic gate valve is a rising stem wedge gate valve driven by pneumatic actuator and connected by flange. It drives the cylinder piston or diaphragm through compressed air, which drives the valve stem to rise and fall, causing the wedge gate to move vertically and achieve the opening and closing of the pipeline. The valve body is made of stainless steel or carbon steel, and the sealing surface is directly machined from the valve body material ("W" shape), forming a hard metal to metal seal. This valve integrates a manual operating mechanism, which can perform emergency operations in case of gas supply interruption. It is designed specifically for automated process control, remote operation, and frequent opening and closing situations, and is an ideal execution unit for intelligent management in industrial pipeline systems. Widely used in automation control systems for petrochemical, power, metallurgy, water treatment, food and pharmaceutical, and general industrial pipelines, as a key cutoff device for remote operation, frequent opening and closing, or process interlocking control. Especially suitable for situations that require centralized monitoring, unmanned operation, or remote operation in hazardous environments.Z641W Pneumatic Flanged Gate Valve Product Drawingfeature1. Pneumatic drive, automated controlEquipped with single acting or double acting cylinder actuators, powered by compressed air, capable of receiving electrical signals from DCS/PLC systems (converted through solenoid valves), achieving remote centralized control and automated operation of valves.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for on-site inspection and debugging.3. Valve body sealing surface ("W" type)The sealing surface is directly processed from valve body materials such as stainless steel and carbon steel, which is economical, practical, wear-resistant, and suitable for conventional media such as water, oil, and gas.4. Flange connection, stable and reliableUsing standard flange connections (such as RF flanges), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Manual emergency operationThe top of the actuator is equipped with a handwheel or square head, which can be manually operated in case of gas supply interruption or debugging, ensuring that the system is controllable in any situation.6. Optional attachments and expanded functionalityAccessories such as solenoid valves, limit switches (feedback devices), locators, and filter pressure reducing valves can be installed to achieve switch signal feedback, precise adjustment, and air source processing.

Z741H hydraulic gate valve is a rising stem wedge gate valve driven by hydraulic actuator and connected by flange. It drives the piston or cylinder through hydraulic oil to lift the valve stem, causing the wedge gate to move vertically and achieve the opening and closing of the pipeline. The valve sealing surface is welded with alloy steel ("H" type) to form a metal hard seal. This valve integrates a manual operating mechanism for emergency operation in case of hydraulic system failure. It is designed specifically for high thrust, high reliability, and remote automation control applications and is an ideal execution unit in hydraulic control systems for industries such as metallurgy, mining, and power. Widely used in hydraulic control systems in industries such as metallurgy (blast furnaces, converters), mining (slurry transportation), power (boiler feedwater), petrochemicals, water conservancy, and heavy machinery, as a key cutting device for large-diameter, high-pressure differential pipelines. Especially suitable for situations that require high thrust drive, frequent operation, and remote automation control.Z741H Hydraulic Flanged Gate Valve Product Drawing1. Hydraulic drive, strong thrustEquipped with hydraulic cylinder actuator, powered by hydraulic oil, it has high output thrust and smooth opening and closing, especially suitable for gate valve operation under large diameter and high pressure difference conditions.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the valve opening can be directly determined by observing the height of the valve stem extension, which is convenient for on-site inspection and debugging.3. Alloy steel hard seal ("H" type)The sealing surface of the valve disc and seat is welded with alloy steel (such as 13Cr, Stellite), which has high hardness, wear resistance, erosion resistance, reliable sealing, and long service life.4. Flange connection, stable and reliableUsing standard flange connections (such as RF flanges), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Manual emergency operationThe top or side of the hydraulic cylinder is equipped with a manual pump or handwheel mechanism, which can be manually operated in case of hydraulic system failure or debugging, ensuring that the system is controllable in any situation.6. Remote automation controlIt can be integrated with hydraulic control systems, receive electrical signals for remote automatic control, and is suitable for automation systems that require centralized monitoring or process interlocking.7. Pressure holding and locking functionThe hydraulic system can be equipped with pressure maintaining valves or locking devices to keep the valve position unchanged in case of pressure loss, preventing accidental action.

summaryZ543Y flat gate valve is a straight-through valve driven by bevel gear, which realizes the on-off of fluid through the vertical rise and fall of a flat gate between two parallel valve seats. Its "Y" represents that the sealing surface is overlaid with hard alloy (such as Stellite) or other wear-resistant materials to form a high-performance metal hard seal pair together with the ram of the same surfacing hard alloy. The introduction of bevel gear transmission mechanism provides huge operating torque, making the opening and closing of large-diameter and high-pressure valves labor-saving and reliable. The product is mainly used in heavy industrial fields such as oil and natural gas long-distance pipelines, refineries, chemical plants, power stations, offshore platforms, etc. It is applicable to the transmission of crude oil, refined oil, natural gas, water, steam and other media, especially suitable for high temperature, high pressure, high wear and critical pipe sections requiring strict cutting as the main block valve. It is one of the core equipment to ensure the safe operation of the industrial energy artery.Z543Y Flat Gate Valve Product DrawingFeatures:Bevel gear labor-saving drive: the bevel gear angle drive mechanism is adopted, with obvious torque increasing effect, which can amplify the hand wheel input force dozens of times, easily drive valves with large diameter and high pressure rating, and support the extension of the operating shaft in vertical or horizontal directions.High-performance hard seal: "Y" hard alloy sealing surface has extremely high hardness, abrasion resistance and scratch resistance, which is applicable to high temperature, high pressure and harsh working conditions containing tiny particles, and its service life is far more than that of conventional sealing materials.Full-diameter and low flow resistance: the valve adopts full-diameter design, the flow passage is smooth and straight, basically consistent with the inner diameter of the pipe, the resistance is very small when the fluid passes through, almost no pressure loss is generated, and it is suitable for large-flow transmission pipelines.Double ram elastic structure: floating double ram design is generally adopted, with built-in elastic elements, which can automatically compensate the clearance caused by temperature and pressure change or slight wear when closing, so as to ensure the reliability of two-way seal.Solid structure and wide applicability: the valve body is usually forged with carbon steel or alloy steel, with high structural strength. The combination of hard seal and bevel gear drive makes it ideal for heavy industrial applications such as long-distance pipelines, oil fields and power plants.

Z11W copper internal thread gate valve is a concealed wedge gate valve made of copper alloy materials such as brass or bronze, with internal thread connection. It drives the internal valve stem by rotating the handwheel, which drives the wedge gate to rise and fall vertically, achieving the opening and closing of the pipeline. The valve stem is located inside the valve body and only rotates without lifting, with a compact structure. The sealing surface is directly processed from copper alloy valve body material ("W" shape), forming a metal to metal hard seal. This valve is designed specifically for low-pressure, small-diameter pipelines, with good corrosion resistance and economy, making it an ideal choice for civil and light industry applications. Widely used in small diameter (DN15-DN50) pipelines of civil building water supply and drainage systems, HVAC pipelines, household water heaters, solar energy systems, garden irrigation, and general industrial equipment, as a cut-off device for manually controlling fluid flow.Z11W Brass Female Threaded Gate Valve Product Drawing1. Copper alloy valve body, corrosion-resistantThe valve body is made of high-quality copper alloys such as brass or bronze, which have good resistance to water corrosion and zinc removal corrosion, and are suitable for systems such as drinking water and HVAC.2. Internal thread connection, easy to installThe two ends are standard internal thread interfaces (such as G thread, BSP thread), which can be directly screwed into the pipeline without flanges, making installation simple and fast, especially suitable for households and small pipeline systems.3. Compact design of concealed poleThe valve stem is built-in and does not lift or lower, with a constant overall installation height, saving installation space. It is suitable for space limited occasions such as indoor pipeline wells.4. Valve body sealing surface ("W" type)The sealing surface is directly processed from copper alloy valve body material, which is economical, practical, wear-resistant, and suitable for conventional media such as water, oil, and gas.5. Easy to operate and maintainThe handwheel is directly driven, with a small opening and closing torque. Simple structure, low failure rate, easy maintenance, and long service life.6. Economical and practical, with high cost-effectiveness

OverviewThe Z43W stainless steel flat gate valve is a straight-through valve manufactured from stainless steel. It controls fluid flow by vertically lifting a flat gate plate between two parallel seats. Typically featuring a “dual gate plate with elastic expansion” design, this valve automatically compensates for wear on the sealing surfaces during closure. The “F” designation indicates that the seat sealing surface is machined directly from the valve body material or overlaid with other materials, forming a metal-to-metal hard seal with the stainless steel gate plate. This configuration is suitable for high-temperature, high-pressure, and applications requiring high cleanliness standards. This product is widely used in pipeline systems across petrochemical, natural gas transmission, food and pharmaceutical, marine, and light industrial sectors. It is particularly suitable for conveying natural gas, refined oil, water, steam, and various non-corrosive media. It serves as critical shut-off equipment requiring high flow capacity, reliable sealing, and stringent material cleanliness standards. Z43W Stainless Steel Flat Gate Valve Product DrawingFeatures1. All-stainless steel construction: Key components including the valve body, gate plate, and valve stem are manufactured from premium stainless steel (e.g., 304, 316, CF8M), offering exceptional corrosion resistance. Suitable for clean or corrosive environments in food, pharmaceutical, chemical, and other industries.2. Flat-Face Double Gate Design: Features a gate structure composed of two flat plates with an elastic element in between. This design automatically compresses both valve seats during closure, compensating for gaps caused by temperature changes or wear to ensure reliable sealing.3. Minimal Flow Resistance & High Flow Capacity: Featuring a full-bore design where the passage diameter aligns with the pipeline's inner diameter, the valve enables streamlined media flow with negligible pressure loss. This makes it particularly suitable for pipelines requiring high flow rates and low pressure drop.4. Wear-Resistant and High-Temperature Capable: The metal hard seal pair (“F” type sealing face) offers excellent wear resistance and high-temperature tolerance, accommodating water, steam, oil products, and certain corrosive media under elevated temperature and pressure conditions.5. Compact Length and Lightweight: Compared to wedge gate valves of equivalent specifications, it features a shorter structural length and lighter overall weight, facilitating installation and layout while reducing pipeline support costs.

Z41W bronze gate valve is a rising stem wedge gate valve made of high-quality bronze material and connected by flanges. It drives the valve stem to rise and fall through the handwheel, driving the wedge gate to move vertically and achieve the opening and closing of the pipeline. The main components such as the valve body, valve cover, and gate are made of high-strength tin bronze or aluminum bronze casting, which has excellent corrosion resistance. The sealing surface is directly processed from bronze valve body material ("W" shape), forming a hard metal to metal seal. This valve is designed specifically for ships and marine engineering pipelines with media such as seawater, fresh water, and steam, and is an ideal choice for corrosion-resistant conditions. Widely used in shipbuilding and repair, offshore platforms, port facilities, coastal industries, seawater desalination systems, and chemical pipelines. Specially suitable for pipeline systems transporting seawater, fresh water, steam, oil products, and weakly corrosive media, as a cut-off device for manually controlling fluid flow. Its excellent resistance to seawater corrosion makes it an ideal choice for ship ballast water, seawater cooling, and fire protection systems.Z41W Bronze Gate Valve Product Drawing Features:1. High quality bronze material with excellent corrosion resistanceThe main components such as the valve body, valve cover, and gate are made of high-strength tin bronze (such as CAC406) or aluminum bronze (such as CAC703) casting, which has excellent resistance to seawater corrosion, biological adhesion, and good wear resistance, especially suitable for marine environments and corrosive media working conditions.2. Clear stem structure, intuitive valve positionThe valve stem rises and falls with the gate, and the operator can accurately determine the valve opening by observing the height of the valve stem extension, which facilitates system process control and safety management.3. Valve body sealing surface ("W" type)The sealing surface is directly processed from bronze valve body material, which is economical, practical, wear-resistant, and suitable for conventional media such as seawater, fresh water, steam, and oil.4. Flange connection, stable and reliableUsing standard flange connections (such as GB/T 17241.6, JIS B2210, or ANSI B16.24), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems.6. The valve stem seal is reliableAdopting multi-layer packing or O-ring sealing, and equipped with an upper sealing structure, the packing can be replaced online when the valve is fully open for easy maintenance.7. Wide applicable temperature rangeBronze material is suitable for medium temperatures typically ≤ 200 ℃, meeting the requirements of hot water, steam, and various industrial medium working conditions

Z45T cast iron flange gate valve is a concealed wedge gate valve manufactured with gray cast iron or ductile iron valve body and flange connection. It drives the internal valve stem by rotating the handwheel, which drives the wedge gate to rise and fall vertically, achieving the opening and closing of the pipeline. The valve stem is located inside the valve body and only rotates without lifting, with a compact structure. The sealing surface is welded or embedded with copper alloy ("T" type) to form a copper metal sealing pair. This valve is designed specifically for medium and low pressure, large-diameter pipelines, with good corrosion resistance and economy, and is a commonly used choice for municipal water supply and industrial water systems. Widely used in municipal water supply networks, sewage treatment plants, HVAC systems, fire water supply pipelines, and industrial circulating water systems in the medium and low pressure (PN6-PN16) pipelines, as a cut-off device for manually controlling fluid flow.Z45T Cast Iron Flanged Gate Valve Product Drawingfeature1. Cast iron valve body, economical and durableThe valve body is made of HT200 gray cast iron or QT450 ductile iron, which has high strength, low cost, and is suitable for non corrosive media such as water and oil.2. Copper alloy seal ("T" type)The sealing surface of the valve disc and seat is made of brass or bronze overlay/inlay, which is wear-resistant, corrosion-resistant, reliable in sealing performance, and has a long service life.3. Compact design of concealed poleThe valve stem is built-in without lifting, with a constant installation height, saving space, and is particularly suitable for narrow occasions such as valve wells.4. Flange connection, stable and reliableUsing standard flange connections (such as GB/T 17241.6), the connection strength is high, the sealing performance is good, and it is easy to install and disassemble.5. Full bore design with low flow resistanceAdopting a full bore flow channel, the medium has low flow resistance and pressure loss, making it suitable for high flow conveying systems.6. Wide applicable temperature rangeThe applicable medium temperature is usually ≤ 200 ℃, meeting the requirements of hot water, steam and other working conditions.

Z11W stainless steel internal thread gate valve is a concealed wedge gate valve made of all stainless steel material and connected with internal threads. It drives the internal valve stem by rotating the handwheel, which drives the wedge gate to rise and fall vertically, achieving the opening and closing of the pipeline. The valve stem is located inside the valve body and only rotates without lifting, with a compact structure. The sealing surface of the gate and valve seat is directly machined from a stainless steel body ("W" shape), forming a metal to metal hard seal. This valve is designed specifically for small-diameter, medium low pressure pipelines, with excellent corrosion resistance and compact appearance, making it an ideal choice for industries such as chemical, food, and water treatment.Z11W Stainless Steel Female Threaded Gate Valve Product DrawingCharacteristic1. All stainless steel corrosion-resistant structureThe valve body, valve cover, gate and valve stem are all made of high-quality stainless steel such as 304/316, which has excellent corrosion resistance and is suitable for various corrosive media and clean environments.2. Internal thread connection, easy to installThe two ends are standard internal thread interfaces (such as G thread, NPT thread), which can be directly screwed into the pipeline without flanges, making installation simple and fast, especially suitable for small-diameter pipeline systems.3. Compact design of concealed poleThe valve stem is built-in and does not lift or lower, with a constant overall installation height, saving installation space and suitable for situations with limited space.4. Valve body sealing surface ("W" type)The sealing surface is directly processed from stainless steel valve body material, which is economical, practical, wear-resistant, and suitable for conventional media such as water, oil, and gas.5. Easy to operate and maintainThe handwheel is directly driven, with a small opening and closing torque. Simple structure, low failure rate, and easy maintenance.