Low temperature pneumatic regulating valve
The Low Temperature Pneumatic Regulating Valve is a specialized automatic control valve designed for precise flow regulation under cryogenic and low-temperature operating conditions. It is engineered with advanced low-temperature materials, extended bonnet structures, and reliable sealing technology to ensure stable operation in extremely cold environments.
Driven by a pneumatic actuator, the valve provides accurate control of flow, pressure, and temperature while maintaining excellent sealing performance and operational safety. The extended stem design helps protect actuator components from low-temperature effects, preventing frost damage and ensuring long service life.
The valve is widely used in cryogenic applications involving liquid nitrogen, liquid oxygen, LNG, natural gas, and other low-temperature media, where high reliability, safety, and precise control are required.
Low temperature pneumatic regulating valve
We provide professional OEM manufacturing and customized low-temperature pneumatic regulating valve solutions according to customer requirements, including:
Our Low Temperature Pneumatic Regulating Valves are manufactured under strict quality management systems and comply with international valve industry standards. Available certifications include:
We provide reliable cryogenic valve solutions with advanced manufacturing technology, strict quality control, and flexible OEM customization capabilities.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Low Temperature Pneumatic Regulating Valve |
| Valve Type | Cryogenic Pneumatic Control Valve |
| Valve Structure | Globe Type / Angle Type (Optional) |
| Actuator Type | Pneumatic Diaphragm Actuator / Pneumatic Piston Actuator |
| Nominal Size | DN15 ~ DN500 (Customized Available) |
| Pressure Rating | PN16 ~ PN420 / Class 150 ~ Class 2500 |
| Body Material | Stainless Steel, Low Temperature Carbon Steel, Alloy Steel |
| Trim Material | Stainless Steel, Hardened Alloy, Special Cryogenic Materials |
| Connection Type | Flanged, Butt Welded, Threaded, Customized |
| Applicable Medium | LNG, Liquid Nitrogen, Liquid Oxygen, Liquid Argon, Cryogenic Gas |
| Working Temperature | -196℃ ~ 150℃ (Customized Available) |
| Actuator Supply Pressure | 0.2 ~ 0.7 MPa |
| Control Signal | 4-20mA, 0-10V, Pneumatic Signal |
| Flow Characteristic | Linear / Equal Percentage / Quick Opening |
| Control Accuracy | ±1% (With Positioner) |
| Leakage Class | ANSI Class IV / V / VI |
| Extended Bonnet Type | Cryogenic Long Neck Bonnet |
| Valve Action Mode | Air-to-Open / Air-to-Close / Fail-Safe Design |
| Positioner | Smart Electro-Pneumatic Positioner Optional |
| Sealing Type | Low Temperature Soft Seal / Metal Seal |
| Anti-Frost Design | Extended Stem & Insulation Structure |
| Explosion Protection | Explosion-Proof Actuator Available |
| Applicable Standards | IEC 60534, ANSI, API, DIN, GB Standards |
| Inspection Standard | Pressure Test, Leakage Test, Cryogenic Test |
Industry Applications
The Low Temperature Pneumatic Regulating Valve is widely used in industries requiring precise control under cryogenic and low-temperature conditions.
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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