Pneumatic diaphragm regulating valve
The Pneumatic Diaphragm Regulating Valve is a high-performance automatic control valve designed for precise regulation of flow, pressure, temperature, and liquid levels in industrial process systems. Driven by a pneumatic diaphragm actuator, this valve provides fast response, stable operation, and reliable control performance.
Featuring a compact structure, excellent sealing capability, and flexible control characteristics, the valve is suitable for various industrial media including water, steam, gas, oil, and chemical fluids. The diaphragm actuator ensures smooth operation with high sensitivity and can be equipped with intelligent valve positioners for advanced automation control.
The valve is widely applied in industries requiring continuous and accurate process regulation, especially in applications where safety, reliability, and long-term durability are critical.
Pneumatic diaphragm regulating valve
We provide professional OEM manufacturing and customized solutions to meet different industrial requirements, including:
Our products are manufactured under strict quality control systems and comply with international valve industry standards. Available certifications include:
We provide complete valve solutions with professional engineering support, reliable quality, and flexible customization capabilities for global customers.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Pneumatic Diaphragm Regulating Valve |
| Valve Type | Pneumatic Diaphragm Control Valve |
| Actuator Type | Pneumatic Diaphragm Actuator |
| Nominal Size | DN15 ~ DN400 (Customized Available) |
| Pressure Rating | PN10 ~ PN420 / Class 150 ~ Class 2500 |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel, Cast Iron, Customized Materials |
| Diaphragm Material | NBR, EPDM, PTFE, FKM, Customized Materials |
| Trim Material | Stainless Steel, Hardened Alloy, Ceramic Trim (Optional) |
| Connection Type | Flanged, Threaded, Butt Welded, Customized |
| Applicable Medium | Water, Steam, Gas, Oil, Chemical Fluids, Industrial Process Media |
| Working Temperature | -40℃ ~ 450℃ (Customized Available) |
| Control Signal | 4-20mA, 0-10V, Pneumatic Signal |
| Flow Characteristic | Linear / Equal Percentage / Quick Opening |
| Leakage Class | ANSI Class II / III / IV / V / VI |
| Control Accuracy | ±1% (With Positioner) |
| Actuator Supply Pressure | 0.2 ~ 0.6 MPa |
| Valve Action Mode | Air-to-Open / Air-to-Close / Fail-Safe Design |
| Positioner | Smart Electro-Pneumatic Positioner Optional |
| Noise Reduction | Optional Low Noise Trim Design |
| Anti-Corrosion | Special Coating and Alloy Material Available |
| Explosion Protection | Explosion-Proof Accessories Optional |
| Standard Compliance | IEC 60534, ANSI, API, DIN, GB Standards |
| Inspection Method | Pressure Test, Leakage Test, Performance Test |
Industry Applications
The Pneumatic Diaphragm Regulating Valve is widely used in industries requiring accurate and reliable automatic process control.
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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