Y42X Direct-Acting Spring Pressure Reducing ValveThe Y42X Direct-Acting Spring Pressure Reducing Valve is an automatic pressure regulating valve designed based on the force balance principle, adopting direct mechanical linkage between a spring and a diaphragm/piston for pressure control. Its working principle is to directly balance the downstream medium pressure by adjusting the spring's preload. When a change in outlet pressure is detected, the valve core automatically adjusts its opening to maintain stable set pressure. The valve requires no external pilot piping and is driven by the energy of the system medium itself, specifically designed for stable pressure control in medium and low-pressure working conditions. Featuring a flange connection structure, it boasts quick response and a compact design. It is widely used in water supply and drainage systems, HVAC, industrial circulating water, and general fluid pipelines for pressure stabilization and safety protection.Y42X Direct-acting Spring Pressure Reducing valve Product ImageY42X Direct-acting Spring Pressure Reducing valve Features1. Direct-Acting Structure, Quick Response Adopts a mechanical structure with direct linkage between the spring and pressure sensing element (diaphragm or piston), requiring no external control source or pilot piping. When downstream pressure changes, the sensing element directly transmits the force to the valve core, achieving rapid response and immediate pressure compensation with stable and reliable dynamic adjustment performance.2. Compact & Simple Structure, Reliable Operation The highly integrated overall structure has fewer moving parts and no complex external hydraulic or pneumatic control circuits, reducing potential failure points. The flange connection facilitates installation and maintenance, making it suitable for use as a compact pressure control device in pipeline systems with limited space.3. Easy & Intuitive Adjustment, Precise Setting A precision pressure adjustment mechanism with a protective cover is installed on the top. By rotating the adjusting screw, the spring preload can be linearly changed to precisely set and lock the outlet pressure value. No special tools are needed for adjustment, and the operation is simple and intuitive, enabling quick on-site commissioning.4. Built-In Pressure Stabilization, Wide Adaptability The valve can automatically maintain stable outlet pressure when inlet pressure fluctuates or downstream flow changes, suitable for pipeline systems with unstable water supply pressure or requiring zoned pressure stabilization. Its structural design has moderate requirements for medium cleanliness, applicable to general industrial water and non-corrosive fluids.5. Cost-Effective, Easy Maintenance Compared with pilot-operated pressure reducing valves, it has a simpler structure and lower manufacturing cost, offering high cost performance. Main wearing parts such as seals and springs are standardized modules that support quick replacement, resulting in minimal daily maintenance work and low comprehensive operating costs.

200X Water Pressure Reducing Valve OverviewThe 200X Water Pressure Reducing Valve is an automatically controlled valve that adopts a pilot-piston design, specifically used to stabilize and reduce downstream water pressure in water supply systems. The valve utilizes a pilot valve to sense downstream pressure changes, driving the main valve disc via a piston or diaphragm to automatically adjust the opening degree of the valve port. This allows fluctuating inlet pressure to be reduced to a set, stable outlet pressure. The valve body is typically made of brass, cast iron, or stainless steel, making it suitable for both cold and hot water systems. This valve effectively eliminates water hammer, reduces noise, and protects downstream pipelines and equipment. It is widely used in building water supply, fire protection systems, regional water supply, industrial circulating water systems, and other pipeline applications.200X Water Pressure Reducing Valve Product Image200X Water Pressure Reducing Valve Features 1. Accurate and Stable Pressure Reduction Performance: Utilizing a pilot-operated control principle, it responds sensitively to downstream pressure changes, precisely maintaining the outlet pressure at the set value with minimal fluctuation and high stability.2. Automatic Adjustment and Wide Pressure Range: When the inlet pressure varies within a certain range, the valve automatically and continuously adjusts to keep the outlet pressure constant. It typically features a high pressure reduction ratio and is suitable for a wide range of pressure conditions.3. Reliable Structure and Easy Maintenance: The separate design of the main valve and pilot valve results in low failure rates. A strainer protects the pilot system, and key components such as diaphragms and O-rings are easy to inspect and replace.4. Water Hammer Elimination and Low Noise: Its smooth regulating action effectively prevents sudden pressure changes, significantly reducing water hammer effects and fluid noise, thereby protecting the pipeline system.5. Flexible Installation and Wide Applicability: It can be installed horizontally or vertically (specific models required), with flange or threaded connections available. Suitable for domestic water supply, firefighting, irrigation, and various industrial water systems, offering high cost-effectiveness.

Y12H Diaphragm Stainless Steel Pressure Reducing Valve OverviewY12H Diaphragm Stainless Steel Pressure Reducing Valve is an automatic pressure-stabilizing valve that uses a diaphragm as the pressure sensing element. It utilizes the energy of the inlet medium itself, with the large-area diaphragm accurately detecting minor changes in downstream pressure and driving the valve disc to adjust the flow area. This stabilizes and reduces the fluctuating inlet pressure to a preset outlet pressure. As a type of direct-acting pressure reducing valve, it is designed for high sensitivity and durability, making it particularly suitable for pipeline systems requiring high pressure control precision and medium cleanliness. Key flow-through components are made of stainless steel for structural robustness, and it is widely used in food, pharmaceutical, chemical, high-end laboratory equipment, pure water systems, and corrosive medium pipelines—for precise pressure control at branch lines or equipment inlets.Y12H Diaphragm Stainless Steel Pressure Reducing Valve Product ImageY12H Diaphragm Stainless Steel Pressure Reducing Valve Features1. Diaphragm Sensing, Precise Control Equipped with a large-area, high-sensitivity rubber or Teflon diaphragm as the pressure sensing element, it instantly and accurately responds to minor fluctuations in downstream pressure. Leveraging the lever principle to amplify the acting force, it drives the valve core for compensatory adjustment, achieving high-precision stable pressure output with excellent pressure reducing and stabilizing performance.2. Stainless Steel Structure, Corrosion-Resistant & Durable Key components such as the valve body, bonnet, and valve core are made of high-quality stainless steel (e.g., 304, 316), boasting outstanding corrosion and erosion resistance. It can withstand water, steam, oil products, and various weakly corrosive chemical media, ensuring long-term reliable operation and a prolonged service life under harsh working conditions.3. Compact Structure, Reliable Sealing Adopting a compact modular design, the diaphragm completely isolates the downstream pressure chamber from the spring adjustment chamber, preventing medium contamination of the adjustment mechanism. The unique valve disc and valve seat design ensure tight sealing, enabling effective shut-off in the closed state and integrating both pressure reducing and shut-off functions.4. Easy Adjustment, Simple Maintenance An intuitive spring adjustment device is located on the top. The outlet pressure can be easily and linearly set by turning the adjusting screw inside the protective cover. Wear parts such as the diaphragm usually adopt a standardized design, facilitating inspection and replacement, and reducing long-term maintenance costs and downtime.5. Hygienic, Wide Application The all-stainless steel material and smooth flow channel inner wall meet hygienic requirements, making it difficult for bacteria to breed or media to accumulate. Its excellent corrosion resistance and precise control capability make it an ideal pressure reducing and stabilizing equipment for industrial fields such as food and beverage, biopharmaceuticals, electronic ultrapure water, fine chemicals, and high-pressure gas transmission.

Y11X Direct-Acting NPT Pressure Reducing Valve OverviewY11X Direct-Acting NPT Pressure Reducing Valve is a compact, responsive automatic pressure regulating valve. It adopts a direct-acting working principle, requiring no external power source. It uses the medium’s own energy and built-in sensitive components (such as diaphragms or pistons) to sense and control downstream pressure. Its main function is to automatically reduce and stabilize fluctuating, high inlet pressure to the user-preset outlet pressure. This protects downstream pipelines, instruments and water-consuming equipment from overpressure damage and ensures stable operation. Usually made of copper alloy or stainless steel with threaded connections, the valve is widely used in building water supply, fire protection branches, gas pipelines, small irrigation systems and industrial equipment inlets—all scenarios requiring precise pressure stabilization.Y11X Direct-Acting NPT Pressure Reducing Valve Product ImageY11X Direct-Acting NPT Pressure Reducing Valve Features1. Direct-Acting, Responsive Adopting a mechanical structure with direct linkage between spring and diaphragm/piston, the valve requires no pilot piping or external control. When downstream pressure changes, it instantly drives the valve core to adjust flow area rapidly, achieving immediate response and compensation for pressure fluctuations with direct and efficient pressure stabilization. 2. Compact Design, Flexible Installation Highly integrated overall structure ensures small size and light weight. Standard internal thread connections (e.g., G1/2″, G3/4″) facilitate direct installation on pipelines, instruments or equipment inlets. It is especially suitable for precise pressure control in space-constrained branch pipes, terminals or equipment frontends.3. Intuitive Adjustment, Precise Setting A clear pressure adjustment mechanism is located on the top of the valve body. By turning the adjusting screw, the preload of the main spring can be precisely set, enabling direct and linear adjustment and locking of the required outlet pressure. Operation is simple and intuitive, with easy calibration.4. Easy Maintenance, High Reliability Featuring a small number of structural parts, the internal moving components are simple and reliable. The common modular design allows easy inspection and replacement of key parts (e.g., diaphragms, valve core seals). No complex external piping reduces leakage points, resulting in minimal daily maintenance and stable operation.5. High-Quality Material, Wide Application Key flow-through components are made of brass or stainless steel, offering good corrosion resistance and mechanical strength. Suitable for cold water, hot water, compressed air and various non-corrosive liquids and gases, it is an economical and practical pressure stabilization solution for building water supply and drainage, gas pressure reduction, small process pipelines and other systems.

Y41X Adjustable Pressure Reducing Valve OverviewThe Y41X Adjustable Pressure Reducing Valve is a precision hydraulic control valve integrating pilot control and main valve linkage, specifically designed for medium and high-pressure pipeline systems requiring extremely high pressure stability. It senses and amplifies the downstream pressure signal through the pilot valve, and precisely drives the main valve disc to act hydraulically. This automatically and smoothly reduces the high, unstable inlet pressure to the user-preset outlet pressure value and locks it in. Its core function is to achieve precise pressure stabilization under conditions of large flow and high pressure difference, effectively eliminating pipeline network pressure fluctuations and protecting the safety of downstream equipment. Adopting flange connection, the valve is usually made of ductile iron or stainless steel as the main material. It is widely used in the main pipelines of high-rise building water supply, district water supply networks, fire protection systems, industrial circulating water and large-scale irrigation systems, serving as the core equipment for system pressure zoning and control.Y41X Adjustable Pressure Reducing Valve Product ImageY41X Adjustable Pressure Reducing Valve Features1. Pilot Control, Precise Pressure Stabilization Adopts a hydraulic linkage structure with separate pilot valve and main valve. Acting as an "intelligent controller," the pilot valve highly sensitively senses downstream pressure changes and drives the main valve piston or diaphragm through the control pipeline, enabling large-stroke, smooth opening and closing of the main valve disc. This design provides strong compensation capability for inlet pressure fluctuations and flow changes, delivering high outlet pressure control precision—far superior stability compared to direct-acting pressure reducing valves. 2. Wide Adjustable Range, Strong Adaptability Equipped with a wide-range, high-precision pressure adjustment mechanism. Within the valve’s rated operating range, users can continuously and linearly set the required outlet pressure by adjusting the adjusting screw on the pilot valve. The wide adjustment range meets various pressure demands of different zones or equipment, ensuring broad adaptability. 3. Flange Connection, Abundant Flow Capacity Features standard flange connection (e.g., PN16/PN25) with a large diameter range (commonly DN50 and above). The optimized flow channel design minimizes fluid resistance, meeting the high-flow requirements of main pipelines while maintaining stable pressure reduction. It boasts low pressure drop loss and significant energy-saving effects. 4. Self-Cleaning Design, Reliable Operation The main valve disc typically adopts a piston-like structure, which achieves self-cleaning during opening and closing to effectively prevent impurity deposition and jamming. The pilot control circuit is usually equipped with a built-in filter screen to protect the precision pilot valve from pipeline impurities, ensuring long-term reliable and maintenance-free operation even in complex water quality conditions. 5. Multi-Functional, High Integration In addition to the core pressure reducing and stabilizing functions, it usually integrates pressure relief and retention capabilities. When the downstream pressure abnormally rises beyond the safe set value, the valve automatically opens to relieve pressure; it can also be adjusted to pressure retention mode when maintaining the minimum pipeline pressure is required. Some models offer optional pressure gauge interfaces for intuitive pressure monitoring, achieving high functional integration.