Steam Pressure Reducing Valve
Nominal Diameter: DN15~400mm
Nominal Pressure: PN1.0~6.4MPa
Applicable Media: Nitrogen, Air, Steam
Applicable Temperature: ≤650°C
Steam Pressure Reducing Valve
The Steam Pressure Reducing Valve (PRV) is a self-operated or pilot-operated control valve specifically designed to reduce and stabilize steam pressure from a higher inlet pressure to a lower, constant outlet pressure. It automatically maintains the desired downstream pressure regardless of fluctuations in inlet pressure or steam demand, ensuring safe and efficient operation of steam systems.
The valve features high pressure regulation accuracy, fast response, reliable sealing performance, and energy-saving operation. It is widely used in steam distribution networks, power plants, petrochemical facilities, food processing plants, pharmaceutical industries, textile factories, and district heating systems.
As a professional industrial valve manufacturer, we offer comprehensive OEM and ODM services for global customers.
Body Materials
Trim Materials
Our products comply with international quality and safety standards.
Parameter Specifications
| Item | Specification |
|---|---|
| Product Name | Steam Pressure Reducing Valve |
| Valve Type | Self-Operated / Pilot-Operated PRV |
| Nominal Size | DN15–DN600 (½"–24") |
| Pressure Rating | PN16–PN420 / ANSI Class 150–2500 |
| Body Material | WCB, WC6, WC9, CF8, CF8M, Duplex SS |
| Trim Material | Stainless Steel, Stellite Overlay |
| Connection Type | Flanged, Threaded, Butt Weld |
| Flange Standard | ANSI, ASME, DIN, EN, JIS, GB |
| Inlet Pressure Range | Up to 42 MPa |
| Outlet Pressure Range | 0.05–16 MPa |
| Pressure Control Accuracy | ±5% |
| Operating Temperature | -29°C to +550°C |
| Applicable Steam Type | Saturated Steam, Superheated Steam |
| Leakage Class | ANSI/FCI 70-2 Class IV, V |
| Pressure Reduction Ratio | Up to 20:1 |
| Pilot Type | Internal Pilot / External Pilot |
| Design Standard | ASME B16.34, API 527 |
| Face-to-Face Standard | ASME B16.10 |
| Testing Standard | API 598, EN 12266 |
| Surface Treatment | Epoxy Coating, High-Temperature Paint |
| Optional Accessories | Pressure Gauge, Steam Separator, Safety Valve, Steam Trap |
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%.
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