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DELCO Pneumatic Piston Control Valve, Industrial Flow & Pressure Regulation

Nominal Diameter (DN): DN15 ~ DN400 (1/2" ~ 16")
Connection Type: Flanged Connection, Threaded Connection and Welded Connection Optional
Body Material: WCB (Carbon Steel), CF8 (304 Stainless Steel), CF8M (316L Stainless Steel), Titanium Alloy
Temperature Range: -40℃ ~ +450℃ (Depending on Sealing and Body Materials)
Pressure Range: PN16 ~ PN100 (ANSI Class 150 ~ Class 600)
Medium Type: Suitable for liquids (water, oil, chemical reagents, slurry), gases (air, natural gas, inert gas), and steam (saturated steam, superheated steam)

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Product Details

Product Parameters

DELCO pneumatic piston control valve is a high-performance fluid control solution, combining a robust pneumatic piston actuator with a precision-engineered globe valve body. Designed for reliable flow and pressure regulation in demanding industrial processes, it features a manual handwheel override for emergency operation, ensuring uninterrupted process safety and control.

Key Advantages & Features

Dual Operation Modes: Pneumatic actuation (compressed air supply) for automatic regulation, paired with a manual handwheel for emergency manual control during air supply failures.
Stable Piston Actuation: Cylindrical piston design delivers high thrust and fast response, ideal for high-pressure and large-flow applications.
Precision Flow Control: Globe-style trim with linear/equal percentage flow characteristics ensures accurate regulation of flow, pressure, and temperature.
Robust Construction: Stainless steel/carbon steel body with anti-corrosion treatment, suitable for harsh industrial environments and corrosive media.
Modular Design: Easy-to-maintain components, with optional smart positioner for 4–20mA control and real-time valve position feedback.
Tight Shutoff: Meets Class IV/V leakage standards (per IEC 60534-4), preventing media loss and ensuring process integrity.

Applications & Industries

Oil & Gas: Refinery pipelines, crude oil transportation, natural gas processing.
Chemical & Petrochemical: Corrosive fluid handling, reactor feed control, solvent recovery.
Power Generation: Boiler steam control, feedwater regulation, condensate systems.
Water Treatment: Municipal water supply, wastewater processing, desalination plants.
Metallurgy & Mining: High-temperature flue gas control, mineral processing pipelines.

Operating Conditions

Suitable for liquid, gas, and steam media.
Ideal for processes requiring high thrust, fast response, and emergency manual override.
Compliant with international standards (IEC 60534, ASME B16.34) and certifications (CE, ISO 9001, RoHS).

Pneumatic Piston Control Valve.jpg

Nominal Diameter	DN15 – DN300 (1/2" – 12")
Pressure Rating	PN16, PN25, PN40 / ANSI Class 150, 300
Body Material	WCB (carbon steel), CF8 (304), CF8M (316L)
Trim Material	304/316L stainless steel, Stellite hardfacing (optional)
Actuator Type	Pneumatic piston (double-acting / single-acting spring return)
Air Supply Pressure	0.4 – 0.6 MPa
Control Signal	4–20mA DC (with positioner)
Temperature Range	-20℃ to +450℃ (depending on seal material)
Connection Type	Flanged (ASME B16.5 / EN 1092-1)

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