Self Operated Pressure Regulating Valve
Nominal Diameter: DN 15 ~ 250 mm
Nominal Pressure: PN 1.0 ~ 6.4 MPa
Applicable Mediums: Water, steam, oil products
Applicable Temperature: ≤ 650°C
Self Operated Pressure Regulating Valve
The Self Operated Pressure Regulating Valve is an automatic control valve that regulates downstream or upstream pressure without the need for external power, electricity, or pneumatic supply. The valve utilizes the process medium's own energy as the driving force to maintain a stable preset pressure, ensuring reliable and energy-efficient operation.
Featuring a compact structure, high control accuracy, easy installation, and low maintenance requirements, the valve is widely used in steam, gas, liquid, and industrial process systems for pressure reduction, pressure sustaining, and pressure relief applications.
As a professional valve manufacturer, we provide comprehensive OEM and ODM solutions for global customers.
Our valves are manufactured and tested according to international quality standards.
Parameter Specifications
| Item | Specification |
|---|---|
| Product Name | Self Operated Pressure Regulating Valve |
| Valve Type | Self-Operated Pressure Control Valve |
| Nominal Size | DN15–DN600 (½"–24") |
| Pressure Rating | PN16–PN420 / ANSI Class 150–2500 |
| Body Material | WCB, WCC, CF8, CF8M, Duplex SS, Alloy Steel |
| Trim Material | Stainless Steel, Stellite, Special Alloy |
| Connection Type | Flanged, Threaded, Butt Weld, Socket Weld |
| Flange Standard | ANSI, ASME, DIN, EN, JIS, GB |
| Pressure Control Type | Pressure Reducing / Pressure Sustaining |
| Set Pressure Range | 0.05–25 MPa |
| Control Accuracy | ±5% |
| Operating Temperature | -196°C to +550°C |
| Leakage Class | ANSI/FCI 70-2 Class IV, V, VI |
| Diaphragm Material | NBR, EPDM, PTFE, Fluororubber |
| Applicable Media | Steam, Air, Natural Gas, Water, Oil |
| Flow Characteristic | Linear Regulation |
| Design Standard | ASME, API, IEC, DIN, EN, GB |
| Face-to-Face Standard | IEC 60534, ANSI B16.10 |
| Testing Standard | API 598, EN 12266 |
| Surface Treatment | Epoxy Coating, Anti-Corrosion Coating |
| Optional Accessories | Pressure Gauge, Filter, Pilot Assembly |
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%.
