Pneumatic Gate Valve for High-Temperature, High-Pressure On/Off Control
The DELCO Pneumatic Gate Valve is designed for reliable full open or full closed control, featuring extremely low flow resistance and a long service life. Driven by a robust pneumatic piston actuator, this valve is ideal for clean fluids and demanding environments, handling temperatures from -196 ℃ up to 500 ℃ and pressures up to PN6.4（6.4 MPa）. Its straight-through flow path ensures minimal pressure drop in main process lines.
Features
Low Flow Resistance and Extreme Temperature Rating
✅ Minimal Flow Resistance (Full Bore): When fully open, the gate valve provides a straight-through flow path with the gate completely lifted out of the media stream. This results in negligible pressure drop across the valve, making it highly energy efficient for high-volume liquid and gas transport.
✅ Extreme Environment Suitability: Built to withstand severe industrial conditions, this valve is suitable for cryogenic services down to -196 ℃ and high-temperature steam/oil up to 500 ℃ (material dependent). Options include insulation sleeves to prevent media condensation.
✅ High-Pressure Cut-Off Capability: Available in pressure classes up to PN6.4 (6.4 MPa). The closing action requires an external force (from the actuator) to seat the gate, ensuring a tight shut-off, available with metal hard seals (e.g., Stellite alloy welding) or EPDM soft seals.
✅ Pneumatic Automation: Operated by a powerful Pneumatic Piston Actuator (gas source 4-8 bar), the valve provides fast and reliable on/off function. Available in Double Acting (air open/air close) or Single Acting (spring reset) configurations.
✅ Durable Construction and Size Range: Main components (Body and Gate) are available in Stainless Steel 304/316 and WCB for strength and corrosion resistance. Sizes range from DN50 up to a large DN500, accommodating most industrial pipeline sizes.
Photo
Parameters
Industry Applications
-
Water Treatment
Chemical dosing (chlorine, pH adjusters), filtration systems -
Chemical Processing
Acid/alkali transfer, solvent blending lines -
HVAC Systems
Chilled water control, heat recovery units -
Aquaculture
Seawater flow diversion, ozone injection -
Plating Plants
Electrolyte management, waste neutralization
Browse our case studies or talk directly with our engineers to discuss your application.
Send Your Inquiry
Not sure which valve fits your project? Our engineers provide fast selection support and OEM customization.
For a faster and more precise quotation, kindly include details such as:
- The model or features you are looking for
- Your estimated purchase quantity
- Any OEM / branding requirements
- Target market or application
