FJ541YThrottle stop vent valve
The Throttle Stop Vent Valve is designed for controlled venting, pressure release, and throttling applications in high-pressure steam, gas, and liquid systems. Featuring precision-engineered trim components and robust sealing structures, it ensures stable pressure regulation, smooth operation, minimal leakage, and enhanced system safety in demanding industrial environments.
Throttle stop vent valve
The Throttle Stop Vent Valve is a multifunctional industrial valve designed to provide accurate throttling, controlled venting, and reliable shut-off performance. It is widely used in power plants, petrochemical facilities, boilers, and pressure vessel systems where safe depressurization and precise flow control are required.
Manufactured from high-quality carbon steel, stainless steel, alloy steel, or duplex stainless steel, the valve delivers excellent resistance to pressure, temperature, corrosion, and erosion. The advanced sealing structure ensures low leakage and long-term operational reliability. Manual, pneumatic, electric, and gear-operated configurations are available to suit various process control requirements.
Our Throttle Stop Vent Valves are manufactured and tested in compliance with international standards:
Throttle stop vent valve
| Parameter | Specification |
|---|---|
| Product Name | Throttle Stop Vent Valve |
| Nominal Size | DN15 – DN600 (½" – 24") |
| Pressure Rating | PN16 – PN420 |
| ANSI Class | Class 150 – Class 2500 |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel |
| Trim Material | Stainless Steel, Stellite, Hard-Faced Alloy |
| Seat Material | Metal Seat, PTFE, RPTFE |
| Connection Type | Flanged, Butt Weld, Socket Weld |
| Operation | Manual, Gear, Pneumatic, Electric, Hydraulic |
| Temperature Range | -29°C to +650°C |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | API 602, API 623, ASME B16.34 |
| Applicable Media | Steam, Gas, Water, Condensate, Industrial Fluids |
Throttle stop vent valve
Boiler startup venting, turbine bypass systems, steam venting, and pressure control applications.
Process venting, pressure release systems, and hydrocarbon processing units.
Pipeline depressurization, gas vent systems, and pressure management facilities.
Boiler blowdown, venting systems, and pressure vessel safety control.
Pressure regulation and controlled discharge of process gases and fluids.
Steam distribution, condensate recovery, and pressure balancing systems.
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%.
