Pneumatic diaphragm three-way regulating valve
The Pneumatic Diaphragm Three-Way Regulating Valve is an advanced automatic control valve designed for precise mixing or diverting control of fluid media in industrial process systems. Equipped with a pneumatic diaphragm actuator, the valve provides fast response, stable operation, and accurate regulation of flow, pressure, and temperature.
Featuring a three-way valve structure, it can be used for mixing two fluid streams into one outlet or diverting one fluid stream into two outlets, making it an ideal solution for complex process control applications. The valve offers excellent sealing performance, reliable adjustment accuracy, and long service life under continuous operating conditions.
The valve is widely used in steam, water, oil, gas, and chemical process systems where efficient flow distribution and automatic control are required.
Pneumatic diaphragm three-way regulating valve
We provide professional OEM manufacturing and customized valve solutions according to different industrial requirements, including:
Our Pneumatic Diaphragm Three-Way Regulating Valves are manufactured under strict quality management systems and comply with international valve industry standards. Available certifications include:
We provide reliable, high-performance control valve solutions with professional engineering support and flexible OEM customization capabilities.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Pneumatic Diaphragm Three-Way Regulating Valve |
| Valve Type | Three-Way Pneumatic Control Valve |
| Structure Type | Mixing Type / Diverting Type |
| Actuator Type | Pneumatic Diaphragm Actuator |
| Nominal Size | DN15 ~ DN400 (Customized Available) |
| Pressure Rating | PN16 ~ PN420 / Class 150 ~ Class 2500 |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel |
| Trim Material | Stainless Steel, Hardened Alloy, Tungsten Carbide Coating |
| Connection Type | Flanged, Threaded, Butt Welded, Customized |
| Applicable Medium | Water, Steam, Gas, Oil, Chemical Fluids |
| Working Temperature | -40℃ ~ 450℃ (Customized Available) |
| Control Signal | 4-20mA, 0-10V, Pneumatic Signal |
| Flow Characteristic | Linear / Equal Percentage / Quick Opening |
| Control Function | Mixing Control / Diverting Control |
| Leakage Class | ANSI Class II / III / IV / V / VI |
| Actuator Supply Pressure | 0.2 ~ 0.6 MPa |
| Control Accuracy | ±1% (With Positioner) |
| Valve Action Mode | Air-to-Open / Air-to-Close / Fail-Safe Design |
| Positioner | Smart Electro-Pneumatic Positioner Optional |
| Differential Pressure | High Differential Pressure Design Available |
| Anti-Cavitation Design | Multi-Stage Pressure Reduction Trim Optional |
| Noise Reduction | Low Noise Trim Available |
| Explosion Protection | Explosion-Proof Accessories Optional |
| Applicable Standards | IEC 60534, ANSI, API, DIN, GB Standards |
| Inspection Standard | Pressure Test, Leakage Test, Performance Test |
Industry Applications
The Pneumatic Diaphragm Three-Way Regulating Valve is widely used in industries requiring accurate fluid mixing, distribution, and 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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