Self-Operated Control Valve, Double-diaphragm, WCB, 1/2-4 IN

Key Specifications / Features

This top-guided, balanced, straight-through valve is available in sizes DN15-DN100 (1/2-4 Inch) and class 150 LB - 600 LB, constructed from ASTM A216 WCB with flanged ends. The double-diaphragm micro pressure regulator includes a control valve, actuator, pilot, and pressure spring. It is designed to maintain a constant pressure of protective gas, typically nitrogen, at the top of a container to prevent the contents from contacting air, thereby avoiding volatilization and oxidation. This ensures container safety and is ideal for gas sealing protection systems in large storage tanks.

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Detail Information

SPECIFICATIONS
Product Name: Self-Operated Control Valve
Body Material: ASTM A216 WCB, ASTM A315 CF8, CF8M, CF3M
Size Range: DN15-DN100, 1/2 Inch - 4 Inch
Pressure Rating: PN16, PN40, Class 150 LB, Class 300 LB
Key Features: Top-Guided, Balanced, Straight-through, Diaphragm Actuator
Bonnet Type: Standard
Flow Characteristic: Quick Open
Leakage Class: ASME B16.104 Ⅴ(soft seal), ASME B16.104 Ⅳ(hard seal)
End Connection: Flange
Set Value Error: ±8%
Applicable Temperature Range: -30°C to 150°C

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