Pneumatic Globe Valve for High-Precision Regulation and High-Pressure Cut-Off
The DELCO Pneumatic Globe Valve is a robust control valve designed for precise flow regulation and reliable unidirectional shut-off in medium-to-high pressure systems. Driven by a pneumatic diaphragm or piston actuator, it provides linear core movement for accurate modulation. With a pressure rating from PN1.6 to PN6.4 and material options including Stainless Steel and Fluorine lining, this valve is essential for fast-response automation systems requiring high control accuracy.
Features
High Control Accuracy and Fail-Safe Positioning
✅ Precise Flow Regulation: Utilizing a conical or flat seal valve core and linear movement, the pneumatic globe valve is excellent for throttling and modulating fluid flow rates. When equipped with a positioner, it can achieve high-precision control via a 4-20mA signal, with fast response speeds crucial for dynamic automation systems.
✅ High Pressure Capability: Built to handle nominal pressures ranging from PN1.6 up to PN6.4 (1.6 MPato 6.4 MPa), the design is inherently suited for high-differential pressure services where tight shutoff and reliable performance under stress are required.
✅ Fail-Safe Automatic Reset: The pneumatic actuator is typically equipped with a compressed spring. Upon loss of air source or power, the spring drives the valve core to automatically reset to a predetermined safe position (Fully Open or Fully Closed), ensuring system safety.
✅ Versatile Material and Corrosion Resistance: Standard body materials include Stainless Steel (304, 316) and WCB, offering strength and resistance to general industrial fluids. Fluorine-lined options are also available for applications involving strong acids and alkalis.
✅ Straight-Through and Angle Body Options: The valve body is commonly available in Straight-Through or Angle patterns. Note that the S-shaped flow channel design, while effective, results in relatively higher flow resistance compared to ball or gate valves.
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Parameters
Industry Applications
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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
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