HC41X Muffler Check Valve OverviewThe HC41X Muffler check valve is suitable for water supply, fire protection, HVAC, chemical, power plant, metallurgical, petrochemical and other systems. It can be installed at the water pump outlet to prevent backflow and water hammer damage to the system. It can be installed in any direction, but vertical installation is recommended.HC41X Muffler Check Valve Product ImageMuffler Check Valve Features1. Short installation length, small size, and light weight.2. Pre-closing silently before the forward pressure or flow rate approaches zero, preventing water hammer.3. Centered guide rail, differential pressure drive, and spring-assisted rapid pre-closing for a silent operation.4. Combination of elastic soft seal and metal hard seal ensures a tight seal with no reverse leakage and no closing noise.5. No adjustment or setting required; reliable water hammer prevention and long service life.

DRVZ Nozzle Check Valve OverviewThe DRVZ Nozzle check valve features a contour design that perfectly conforms to hydraulics, achieving a streamlined waterway. Its internal fluid guide design ensures minimal pressure loss. Installed at the pump outlet, this Nozzle check valve quickly closes before backflow occurs, preventing water hammer, water surge noise, and destructive impacts. It achieves the goals of quiet operation, backflow prevention, and equipment protection, and is widely used in water supply and drainage, fire protection, HVAC, and industrial systems.DRVZ Nozzle Check Valve Product Image Features of DRVZ Nozzle Check Valve1. Excellent noise reduction: Streamlined internal flow channel and short valve disc stroke enable quick closure when the pump stops, preventing loud water hammer and reducing flow noise for quiet operation.2. Low pressure loss: Streamlined internal flow channel ensures smooth medium flow, minimizing pressure loss and energy consumption while boosting system efficiency.3. Automatic operation + strong water hammer resistance: Auto opens/closes via medium pressure (no manual operation – opens on forward flow, closes on stagnation/backflow to prevent backflow); instant closure on pump shutdown effectively resists water hammer, protecting pumps and pipelines and extending equipment life.4. Compact structure: Small, lightweight, and processable, with easy installation/maintenance, space-saving design, and adaptability to various environments.5. Superior sealing: Composed of valve body, seat, flow guide, disc, bearings, springs and other key components; rational structure ensures excellent sealing, unidirectional medium flow and no leakage.

OverviewThe axial flow check valve is an energy-saving check valve featuring a streamlined disc design that moves linearly along the pipeline axis for automatic opening and closing. It typically adopts a flanged or wafer connection. The valve body is mainly made of cast steel, stainless steel or ductile iron, with its internal disc performing axial reciprocating motion under the assistance of a flow guide and a spring. This valve can be installed either horizontally or vertically. When the medium flows in the forward direction, it pushes the disc to open along the axis, providing a completely straight-through flow path with extremely low pressure loss. When the medium stops or flows backward, the disc quickly returns to its closed position under spring force and reverse medium pressure, offering reliable sealing with minimal water hammer impact. It is specifically designed for piping systems requiring low flow resistance and high-frequency opening and closing. Widely used in long-distance pipelines, water injection systems, petrochemical plants, seawater desalination and similar projects, it serves as a key protective device ensuring efficient and stable system operation.GLH41W Axial Flow Check ValveMinimizes damage caused by water hammer in pipelines.Eliminates flutter, reducing the likelihood of sudden valve failure in reciprocating compressor applications.Protects critical equipment from costly damage caused by reverse flow.Low pressure drop, energy-saving and environmentally friendly.Utilizes the fast dynamic response of the axial flow check valve to reduce reverse flow velocity.

H71H Wafer-Type Lift Check Valve OverviewThe H71H wafer-type lift check valve is an energy-efficient check valve that adopts a single-disc lift-type design and operates automatically based on medium flow. It typically uses a wafer-type connection. The valve body is commonly made of stainless steel, cast steel, or ductile iron, with its internal single disc moving vertically along the centerline of the valve body. The valve can be installed horizontally or vertically. When the medium flows in the forward direction, it pushes the disc to open smoothly, providing an unobstructed flow path with low pressure loss. When the medium stops or flows in reverse, the disc quickly falls back and closes under the combined action of spring force and reverse medium pressure, ensuring reliable sealing and fast shut-off. This valve is specifically designed for pipeline systems with limited installation space and the need for quick closure. It is widely used in water supply and drainage, fire protection systems, HVAC, and industrial circulating water projects, serving as a simple, economical, and practical pipeline protection device.H71H Lift Type Wafer Check Valve Product ImageH71H Wafer-Type Lift Check Valve Features 1. Simple structure with single-disc lift design: The single disc moves vertically along the centerline of the valve body, resulting in a small number of components, compact structure, low failure rate, economical manufacturing cost, and easy maintenance and replacement.2. Space-saving wafer connection: The wafer-type connection provides a short valve body length, light weight, and small pipeline space occupation, making it especially suitable for applications with limited installation space.3. Unobstructed flow path and low flow resistance: After opening, the disc completely clears the flow path, allowing the medium to pass through almost linearly, resulting in low fluid resistance and low pressure loss. Long-term operation can effectively reduce pumping energy consumption.4. Flexible installation and strong adaptability: Can be installed horizontally or vertically (with medium flow from bottom to top). The spring-assisted closing ensures reliable sealing at various installation angles, offering a wide range of applications.5. Quick closing and reliable sealing: The disc has a short lift stroke, and the spring-assisted return provides sensitive and rapid closing action, effectively reducing water hammer impact. The sealing performance is stable and reliable, protecting pipeline equipment safety.

H71W Wafer Check Valve Overview The H71W Wafer Check Valve is a compact and versatile check valve that employs a wafer-type connection. Unlike flanged valves, its body does not incorporate flanges and is instead installed between two pipeline flanges using long bolts. The valve body is typically constructed from materials such as stainless steel, carbon steel, or cast iron, and features an internal single-disc or dual-disc swing-type design.The valve operates by swinging open under forward medium flow and automatically closing under the disc’s own weight, often assisted by a spring, when the medium stops or reverses direction, thereby preventing backflow.Known for its lightweight design, short face-to-face length, and cost-effectiveness, this valve is widely used in space-constrained pipeline systems such as water treatment, HVAC, industrial circulating water, and pump discharge lines. It is suitable for general media including water, oil, and air. H71W Wafer Check Valve Product ImageH71W Wafer Check Valve Features 1. Compact Structure and Lightweight Design The wafer-type design eliminates the need for valve body flanges, offering an extremely short face-to-face length and reduced overall weight. This significantly saves installation space and material costs, making it particularly suitable for densely arranged pipelines.2. Cost-Effective and Easy Installation The valve is simply clamped between two pipeline flanges using long bolts, enabling quick and straightforward installation without the need for mating flanges. This significantly reduces procurement and installation costs.3. Low Flow Resistance and Reliable Sealing The streamlined flow path design minimizes pressure loss. The disc closes rapidly, ensuring reliable sealing to effectively prevent medium backflow. Some models feature a dual-disc design to mitigate water hammer effects.4. Relatively Simple Maintenance With a relatively straightforward structure, the valve is easy to disassemble for maintenance or replacement without damaging the pipeline. Some dual-disc designs allow for online inspection and maintenance.5. Application Scope and Limitations Suitable for medium to low-pressure conditions (PN10 to PN40) with a typical operating temperature range of -29°C to 150°C. Not recommended for media containing large amounts of solid particles or high viscosity. During installation, ensure pipeline flanges are aligned parallel to each other.

H12W Internal Thread Brass Lift Check Valve Overview The H12W Internal Thread Brass Lift Check Valve is a compact automatic valve designed with internal thread connections, utilizing the vertical lift motion of its disc to achieve unidirectional flow control. The valve body and main components are manufactured from forged brass, offering excellent corrosion resistance and versatility. Its operating principle relies on the pressure of forward-flowing media to lift the disc open. When the media flow stops or reverses, the disc rapidly returns to the seat under its own weight and reverse pressure, achieving automatic closure and effectively preventing media backflow. Specifically designed for pipelines requiring horizontal installation, this valve features a compact structure and is suitable for use in non-corrosive media systems such as water, oil, and air, with a nominal pressure rating up to PN16. It is commonly applied in building water supply and drainage systems, HVAC installations, and small household equipment. H12W Internal Thread Brass Lift Check Valve Product ImageH12W Internal Thread Brass Lift Check Valve Features 1. Simple Structure and Automatic Sealing The valve adopts a lift-type design with minimal moving parts, ensuring high reliability. It achieves sealing through the combined action of disc weight and medium pressure, eliminating the need for springs, and provides rapid closure response. 2. Compact Design and Easy Installation Featuring internal threads (typically G-thread or NPT) for connection, the valve is compact, lightweight, and designed for quick installation and removal in space-constrained pipeline systems. 3. Strict Installation Orientation Requirement The valve must be installed on horizontal pipelines with the valve stem axis strictly vertical, ensuring the disc can freely return under gravity—a prerequisite for proper operation and sealing. 4. Brass Body for Corrosion Resistance and Long Life The brass construction offers excellent resistance to water and atmospheric corrosion, minimizing rust formation. Suitable for a variety of common fluids, it delivers extended service life with low maintenance requirements. 5. Cost-Effective and Widely Applicable With low manufacturing costs and high cost-effectiveness, this valve is ideal for use in pipelines handling common and general industrial fluids within a temperature range of -20°C to 120°C. It serves as a fundamental and economical solution for preventing backflow.

H42W Vertical Check Valve Overview The H42W Vertical Check Valve is an automatic valve specifically designed for vertical pipelines, featuring flanged connections and a lift-type structure. The valve body is typically constructed from cast steel or stainless steel, with the internal disc operating through vertical movement to achieve opening and closing.This valve must be installed on vertical pipelines where the medium flows upward from bottom to top. Its working principle relies on the upward flow pressure of the medium to overcome the disc's weight and spring force (if equipped) for opening. When the medium pressure drops or backflow occurs, the disc rapidly returns under its own weight and spring assistance to achieve closure, thereby preventing reverse flow of the medium.Designed specifically to address backflow prevention in vertical pipelines, it is widely used in vertical pipeline sections of building water supply systems, HVAC systems, industrial circulating water systems, and pump discharge lines, serving as a critical component to ensure unidirectional flow in the system.H42W Vertical Check Valve Product ImageH42W Vertical Check Valve Features1. Strict Vertical Installation Design Specifically engineered for vertical pipelines, this valve must be installed in pipelines where the medium flows upward from bottom to top. The disc’s lifting direction aligns with gravity, ensuring reliable closure under its own weight. 2. Reliable Closure and Sealing Performance Typically equipped with auxiliary springs or guide rod mechanisms, the valve combines disc weight with these features to ensure rapid and tight closure when pumps stop or pressure drops. This effectively prevents medium backflow and mitigates water hammer. 3. Compact Structure for Space Saving Optimized for vertical pipeline layouts, the valve’s compact design eliminates the need for additional horizontal space required by horizontally installed check valves, simplifying pipeline arrangements. 4. Relatively Easy Maintenance Compared to some specialized check valve designs, the structure of this valve is relatively simple. Inspection and maintenance are generally straightforward during system shutdowns, and some models may support online maintenance. 5. Clear Application Scope Suitable for unidirectional flow control of non-highly corrosive media such as water, steam, and oil products in vertical pipelines. Its performance heavily depends on correct installation orientation, so pipeline layout and flow direction must be clearly identified during selection.

H42F46 Fluorine-Lined Lift Check Valve OverviewThe H42F46 Fluorine-Lined Lift Check Valve is a specialized valve designed for highly corrosive media. Its valve body and inner surface are entirely lined with fluoroplastic materials such as perfluoroalkoxy (FEP) or polytetrafluoroethylene (PTFE). Featuring flanged connections and a lift-type structure, the valve achieves unidirectional flow control through the vertical motion of its disc.The working principle involves the disc lifting open under the pressure of forward-flowing medium and automatically closing under its own weight and reverse pressure when the medium stops or reverses. The sealing surfaces are typically composed of corrosion-resistant alloys or fluoroplastics.By leveraging the exceptional chemical inertness of fluoroplastics, this valve can withstand erosion from most strong acids, strong alkalis, organic solvents, and various mixed corrosive media. It is widely used in corrosive media pipeline systems across industries such as chemical processing, pharmaceuticals, metallurgy, electroplating, and environmental protection, serving as a critical safety device to prevent the backflow of harmful media.H42F46 Fluorine-Lined Lift Check Valve Product ImageH42F46 Fluorine-Lined Lift Check Valve Features1. Outstanding Corrosion Resistance The valve body cavity and flow passage components are fully lined with fluoroplastics such as FEP/PTFE, offering excellent resistance to almost all concentrations of acids, alkalis, salts, and organic solvents. This effectively addresses the corrosion vulnerability of metal valves.2. Reliable Sealing and Safety The sealing pair is specifically optimized for corrosive media, ensuring dependable closure and sealing performance. It effectively prevents the backflow of hazardous media, safeguarding upstream equipment and operational safety.3. Strict Installation Requirements The valve must be installed strictly horizontally with the valve stem kept vertical to ensure the disc can freely return under gravity. Correct installation orientation is fundamental to its proper operation.4. Lightweight and Anti-Adhesion Properties The fluoroplastic lining features a smooth, dense surface with an extremely low friction coefficient, minimizing adhesion of crystalline or deposited media. This design results in low flow resistance and a relatively lightweight valve structure.5. Application Scope and Limitations The operating temperature and pressure ranges are limited by the properties of the fluoroplastic lining (typically suitable for -20°C to 150°C and low to medium-pressure applications). It is not recommended for use with media containing hard particles, highly abrasive conditions, or extreme vacuum environments. Care must be taken during installation and maintenance to avoid damaging the lining layer.

H41W Lift Check Valve Overview The H41W Lift Check Valve is an automatic valve that utilizes flanged connections and operates through the vertical lifting and lowering motion of its disc to achieve unidirectional flow control. The valve body is typically constructed from materials such as cast steel, stainless steel, or cast iron, featuring a metal-sealed internal structure where the sealing surfaces of the disc and seat are often made of the base material or overlay-welded with alloy.Its working principle involves the disc being lifted open by the pressure of forward-flowing medium and automatically closing by rapidly returning to the seat under its own weight and reverse pressure when the medium stops or reverses.Designed specifically for horizontal pipelines, this valve offers a simple and reliable structure. It is suitable for pipeline systems handling media such as water, steam, and oil products, with nominal pressure ratings ranging from PN16 to PN160. Widely used in petroleum, chemical, power, water supply, and drainage industries, it serves as a fundamental safety device to prevent medium backflow.H41W Lift Check Valve Product ImageH41W Lift Check Valve Features 1. Simple Structure and Reliable Operation Adopting a classic lift-type design with minimal moving parts, this valve offers low failure rates. It operates through the combined action of disc weight and medium pressure, requiring no external power or complex controls.2. Strict Installation Orientation Requirements The valve must be installed horizontally with the valve stem axis strictly vertical. Correct installation orientation is the fundamental prerequisite for ensuring reliable sealing and proper operation.3. Metal Sealing with High Temperature Resistance The disc and seat feature a metal-to-metal hard-seal design, providing excellent resistance to high temperatures and wear. This makes it suitable for high-temperature media such as steam and hot oil, ensuring a long service life.4. Rapid Closure and Low Flow Resistance The short vertical travel of the disc enables fast and direct closure, effectively preventing medium backflow and mitigating water hammer effects. When fully open, the valve offers an unobstructed flow path with minimal pressure loss.5. Easy Maintenance and Wide Applicability With its robust construction, the valve requires minimal maintenance. If sealing surfaces wear over time, performance can often be restored through grinding, keeping maintenance costs low. It is suitable for a variety of non-highly corrosive industrial media.

H61H Forged Steel Internal Thread Check Valve OverviewThe H61H Forged Steel Internal Thread Check Valve is a lift-type automatic valve featuring a forged steel body and internal thread connections. The valve body is constructed from forged steel materials such as A105, which through the forging process achieves a dense structure and excellent mechanical properties. It employs a metal hard-seal design, relying on the vertical movement of the disc within the guide cylinder for operation: the disc lifts open under forward medium flow and rapidly returns under its own weight to close when the medium stops or reverses.Designed specifically for small-diameter pipelines under high pressure and high temperature conditions, this valve must be installed horizontally. It is widely used in systems such as power plants, petrochemical facilities, high-pressure boiler feedwater lines, and instrument measurement pipelines, serving as a critical compact safety device to prevent backflow of water, steam, oil, and other media.H61H Forged Steel Internal Thread Check Valve Product ImageH61H Forged Steel Internal Thread Check Valve Features 1. Forged Steel Body for High Pressure and Temperature Resistance The valve body is formed through forging, resulting in uniform and dense material properties free from casting defects. It offers exceptional strength and pressure-bearing capacity, making it particularly suitable for demanding small-diameter applications under high pressure and temperature.2. Compact and Reliable Internal Thread Connection Equipped with internal threads (e.g., NPT, G), the valve features a compact design, easy installation, and reliable sealing. Its space-saving design makes it an ideal connection solution for small-diameter high-pressure pipelines.3. Durable Metal Hard Seal The sealing surfaces of the disc and seat are typically overlay-welded with hard alloys, providing excellent resistance to wear, erosion, and high temperatures. This ensures long-lasting and reliable sealing performance even under frequent operation or exposure to high-temperature media.4. Strict Horizontal Installation Requirement The valve must be installed horizontally, with the valve stem axis kept strictly vertical. This ensures the disc can freely return under gravity—a prerequisite for proper valve operation.5. Robust Structure and Simple Maintenance The overall structure is simple yet robust, ensuring low failure rates. Cleaning or inspection can be performed during system shutdowns. However, due to its small diameter and high-pressure design, complete replacement is typically recommended in cases of severe damage.

H61Y Forged Steel Y-Type Check Valve OverviewThe H61Y Forged Steel Y-Type Check Valve is a specially designed check valve featuring a forged steel body with internal thread or butt-weld connections, characterized by a Y-shaped flow path and an internal lift-type disc structure. The valve body is forged from materials such as A105, offering excellent mechanical properties and pressure-bearing capacity. The sealing surfaces of the disc and seat typically employ metal hard seals overlay-welded with hard alloys.The valve operates by lifting the disc open under forward medium pressure and achieving rapid closure under the disc's own weight with spring assistance. The Y-shaped design ensures a smooth flow path transition, significantly reducing flow resistance and pressure loss.Specifically engineered for small-diameter pipelines with high pressure, high flow velocity, and stringent pressure drop requirements, this valve is widely used in petrochemical plants, power stations, high-pressure boiler feedwater systems, and instrument measurement pipelines. It serves as a high-performance, compact device for preventing medium backflowH61Y Forged Steel Y-Type Check Valve Product ImageH61Y Forged Steel Y-Type Check Valve Features 1. Y-Type Flow Path with Low Pressure Loss Design The unique Y-shaped valve body structure ensures smooth directional change of the medium flow, significantly reducing fluid resistance and pressure loss. This makes it particularly suitable for critical pipelines with high flow velocities or sensitivity to system pressure drops.2. Forged Steel Body with High-Pressure Performance The valve is integrally forged, providing dense and uniform material properties free from casting defects. Its exceptionally high mechanical strength ensures reliable operation under high pressure, high temperature, and frequent pressure fluctuations.3. Wear-Resistant Hard Metal Sealing The disc and seat feature hard alloy sealing surfaces, offering excellent resistance to erosion, high temperatures, and wear. This ensures long-lasting sealing reliability even under demanding operating conditions.4. Rapid Closure and Compact Structure Typically equipped with an auxiliary closing spring, the valve responds quickly and effectively prevents water hammer. Its compact design, with a shorter installation length compared to traditional right-angle check valves, saves valuable space.5. Reliable Connections and Easy Maintenance Available with internal thread or butt-weld connections for dependable sealing. The structural design facilitates online inspection or maintenance, and some models support quick replacement of internal sealing components.

H41H Forged Steel Lift Check Valve Overview The H41H Forged Steel Lift Check Valve is an automatic valve that utilizes a forged valve body and operates through the vertical lifting and lowering motion of its disc to achieve unidirectional flow control. The valve body is typically constructed from forged steel materials such as A105, ensuring robust and compact construction. It features a metal hard-seal design, with the sealing surfaces of the disc and seat often overlay-welded with hard alloys. Its working principle involves the disc being lifted open by the pressure of forward-flowing medium. When the medium flow ceases or reverses, the disc rapidly returns to the seat under its own weight and reverse pressure, achieving a tight seal. Designed to meet high standards for pressure resistance, this valve is suitable for demanding applications involving high temperatures, high pressures, high flow velocities, and stringent sealing requirements. It is widely used in pipelines for power plants, petrochemical industries, steam systems, and high-pressure water supply systems, serving as a critical component to prevent medium backflow.H41H Forged Steel Lift Check Valve Product ImageH41H Forged Steel Lift Check Valve Features 1. Forged Steel Body for High-Pressure Performance The valve body is manufactured using forging technology, ensuring uniform material density and freedom from casting defects. This provides exceptional mechanical strength and pressure-bearing capacity, making it suitable for demanding applications involving high pressure, high temperature, and frequent pressure fluctuations.2. Hard Metal Sealing for Wear Resistance The sealing surfaces of the disc and seat are made of hard alloy materials, offering excellent resistance to wear, erosion, and high temperatures. This ensures a long service life and reliable sealing performance, even in media containing fine particles or under high-temperature conditions.3. Strict Installation Requirements The valve must be installed horizontally with the valve stem axis strictly vertical, ensuring the disc can freely return under gravity—a prerequisite for proper operation. These requirements must be strictly adhered to during installation.4. Rapid Response and Low Flow Resistance The short vertical travel of the disc enables quick closure, effectively mitigating water hammer effects. When open, the valve provides an unobstructed flow path with minimal flow resistance, exerting negligible impact on system pressure.5. Stable Structure and Maintainability The guiding mechanism ensures smooth disc movement and prevents sticking. The robust overall design allows for disassembly and maintenance or replacement of sealing components during major system overhauls, ensuring ease of maintenance.

H44H Forged Steel Flange Check Valve Overview The H44H Forged Steel Flange Check Valve is an automatic valve designed with a forged steel body and flanged connections, utilizing a swing disc mechanism to achieve unidirectional flow control. The valve body is typically forged from materials such as A105, offering excellent mechanical properties and material density. It features a metal hard-seal structure, with the sealing surfaces of the disc and seat often overlay-welded with hard alloys.The valve operates by swinging open under the pressure of forward-flowing medium and rapidly returning to the seat under its own weight and reverse pressure when the medium stops or reverses, ensuring tight closure.Designed specifically for high-temperature, high-pressure, and high-flow-rate applications, this valve is widely used in critical pipelines in industries such as petrochemicals, power plants, natural gas transmission, and high-temperature steam systems. It serves as a highly reliable safety device to prevent medium backflow and protect core equipment.H44H Forged Steel Flange Check Valve Product ImageH44H Forged Steel Flange Check Valve Features 1. Forged Steel Body for High Pressure and Temperature Resistance The valve body is manufactured using a forging process, ensuring uniform material properties, high structural strength, and freedom from casting defects. It reliably withstands demanding conditions such as high pressure, high temperature, and frequent pressure surges.2. Durable Metal Hard Sealing The disc and seat feature hard alloy sealing surfaces, providing excellent resistance to erosion, wear, and high temperatures. This makes it particularly suitable for applications involving steam, media containing particles, and frequent operation, ensuring a long service life.3. Flexible Installation and Low Flow Resistance The swing-type design allows for horizontal installation or installation in vertical pipelines with upward flow. When open, the disc swings almost completely away from the flow path, resulting in minimal fluid resistance and low pressure loss.4. Rapid Closure and Safety Reliability The short swing travel of the disc enables quick closure, effectively mitigating water hammer effects. The robust construction ensures stable operation under harsh conditions, and some models comply with fire safety standards.5. Easy Maintenance and Wide Applicability The structural design facilitates online inspection or maintenance, with some models supporting quick replacement of seat seals. Suitable for various media including water, steam, oil, and gas, the valve excels in high-temperature and high-pressure applications.

H61Y Power Plant High-Temperature High-Pressure Welded Check Valve Overview The H61Y Power Plant High-Temperature High-Pressure Welded Check Valve is a high-performance valve specifically designed for critical systems in power plants, featuring welded end connections and a swing-type structure. The valve body and key components are made of high-temperature-resistant materials such as chromium-molybdenum alloy steel or stainless steel, typically conforming to ASTM A182 standards.Internally, the valve employs a metal hard seal overlay-welded with hard alloys. It opens under the pressure of forward-flowing medium and closes rapidly and automatically under the disc's own weight and reverse pressure.Designed for ultra-high parameter applications such as main steam lines and high-temperature feedwater pipelines, this valve must be permanently welded to the pipeline using stringent welding procedures to eliminate any risk of leakage. It serves as a critical component for ensuring the safety of core equipment in power plants, including boilers and turbines, by preventing medium backflow and mitigating water hammer effects in the system.H61Y Power Plant High-Temperature High-Pressure Welded Check Valve Product DrawingH61Y Power Plant High-Temperature High-Pressure Welded Check Valve Features 1. Extreme Operating Condition Adaptability Made from high-quality alloy steel, it can withstand high temperatures and pressures (Class 2500 or higher) and is specifically designed for demanding environments such as supercritical and ultra-supercritical units in power plants.2. Fully Welded Leak-proof Structure The valve features butt-weld ends that are permanently welded to the pipeline, fundamentally eliminating the risk of leakage at connection points and ensuring absolute sealing integrity under high pressure and temperature.3. High-Performance Hard Seal The sealing surfaces of the disc and seat are overlay-welded with cobalt-based or nickel-based hard alloys, providing exceptional wear resistance, erosion resistance, and high-temperature stability to ensure reliable sealing during long-term operation.4. Safety, Reliability, and Long Service Life The structural design fully accounts for thermal stress and pressure impacts, ensuring smooth disc operation. The valve typically complies with stringent fireproof and explosion-proof standards, with a design lifespan aligned with that of the main equipment.5. Specialized Manufacturing and High Standards The entire process—from material selection, casting, machining, welding, and heat treatment to inspection—adheres to international standards such as ASME and API, as well as specific power plant regulations. The comprehensive quality traceability system ensures extremely high reliability requirements are met.

Japanese Standard brass Stop-Check Valve Overview The Japanese Standard brass Stop-Check Valve is a combination valve that complies with the Japanese Industrial Standards (JIS) and integrates the functions of both a stop valve and a check valve. It features a brass valve body and threaded connections. Internally, it incorporates the sealing mechanism of a stop valve and the automatic opening/closing mechanism of a check valve. By rotating the handwheel, the medium can be shut off or allowed to flow, while in the open position, the valve automatically prevents medium backflow through the disc’s own weight or spring force.Designed specifically for general media such as water, oil, and air, this valve is suitable for pipeline systems with a nominal pressure rating of JIS 10K or lower. Commonly used in marine applications, building water supply and drainage systems, HVAC systems, and general industrial equipment, it provides an integrated solution for scenarios requiring manual shut-off and backflow prevention.JIS Brass Stop-Check Valve Product ImageJapanese Standard brass Stop-Check Valve Features 1. Dual-Function Integrated Design Combines the controlled shut-off capability of a stop valve with the automatic backflow prevention function of a check valve, simplifying pipeline design, reducing installation points, and minimizing leakage risks. 2. Compliance with Japanese Standards Strictly adheres to standards such as JIS B2071/B2081, ensuring full compatibility with the Japanese standard system in terms of pressure ratings, structural dimensions, thread specifications, and material requirements. 3. brass Body with Corrosion Resistance Constructed from cast brass, offering excellent resistance to water and atmospheric corrosion. It is rust-resistant and suitable for a wide range of conventional fluid media. 4. Compact Structure and Ease of Operation The threaded connection facilitates simple installation, and the valve features a short face-to-face length. The handwheel provides intuitive opening and closing control, with clear open/close position indicators. 5. Cost-Effective and Easy Maintenance The integration of two valve functions offers high cost-effectiveness. In case of malfunction, the valve can be replaced entirely or specific internal components can be repaired, resulting in relatively low maintenance costs.