Bellows pressure reducing valve
The Bellows Pressure Reducing Valve is a precision control valve designed to reduce and maintain a stable downstream pressure while providing excellent sealing performance and reliable pressure regulation. The valve adopts a bellows sealing structure that effectively isolates the working medium from the valve stem, preventing leakage and improving safety, durability, and operational stability.
Bellows pressure reducing valve
With its excellent pressure control accuracy, corrosion resistance, and long service life, the bellows pressure reducing valve is widely used in steam systems, gas pipelines, chemical processes, and industrial fluid control applications where high sealing reliability is required.
We provide comprehensive OEM manufacturing and customization services, including valve structure design, pressure range adjustment, connection standards, material selection, sealing solutions, and special working condition customization. Our products are manufactured according to international valve standards and supported by complete valve industry certifications, ensuring high quality, safety, and reliability for worldwide customers.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Bellows Pressure Reducing Valve |
| Valve Type | Self-operated Pressure Reducing Control Valve |
| Control Method | Bellows Pressure Balance Control |
| Nominal Size | DN15–DN500 / 1/2"–20" |
| Pressure Rating | PN10, PN16, PN25, PN40 / Class 150–300 |
| Inlet Pressure Range | 0.05–4.0 MPa (Customized) |
| Outlet Pressure Range | Adjustable according to requirements |
| Pressure Regulation Accuracy | ±5% or Higher Accuracy Available |
| Applicable Medium | Steam, Water, Gas, Oil, Industrial Fluids |
| Valve Body Material | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
| Bellows Material | Stainless Steel 304/316, Customized Alloy |
| Seal Material | PTFE, EPDM, NBR, FKM |
| Connection Type | Flanged, Threaded, Welded, Customized |
| Working Temperature | -20°C to 350°C (Customized for Special Conditions) |
| Flow Direction | One-way Flow |
| Installation Position | Horizontal Pipeline Installation Recommended |
| Leakage Standard | According to International Valve Standards |
| Pressure Control Mode | Automatic Self-regulating |
| Application Standards | GB, DIN, ANSI, JIS, BS Standards |
| Certifications | ISO, CE, API, SGS, Other Certifications Available |
Industry Applications
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
