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DELCO NPT Thread Stainless Steel Pneumatic Piston Angle Seat Valve

This angle seat valve is available in both Normally Closed and Normally Open configurations, featuring a spring return mechanism with a 63 mm actuator. In the Normally Closed setup, the valve remains closed by default (open with spring force), opening when the piston is actuated by compressed air. Conversely, in the Normally Open configuration, the valve is open by default (closed with spring force), closing when the piston is actuated by compressed air. For the double-acting type, valve operation—both opening and closing—is controlled entirely by compressed air.

These 2-Way Pneumatic Operated Valves are designed for efficient control of liquids, gases, and steam.

Type:Thread Angle Seat Valve
Size Range:1/2”~4”
Pressure Range: 0~1.6MPa
Material: Stainless Steel 304/316

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    NPT Thread Pneumatic Piston Angle Seat Valve

    A Pneumatic Angle Seat Valve is a pneumatically controlled valve that utilizes a piston actuator to provide linear motion, lifting a seal off its seat. The seat is angled to ensure the maximum possible flow when unseated. These valves are particularly well-suited for applications requiring high temperatures and large flow rates, such as steam or water. Additionally, certain models can eliminate water hammer when operated in reverse. The pilot control pressure range is from 5 to 8 bar, with a maximum working pressure reaching up to 16 bar.

    These angle seat valves offer a variety of connection methods to cater to different needs, including internal and external threads, flanges, welding, and quick-connect joints.

    Technical Parameters of Valve Body

    Actuator materialStainless steel or PolyamidePABody materialSS304, 316, 316L
    Seat materialPTFE, F46Stem materialSS304, 316, 316L
    Ambient temp-30℃~180℃Pressure0~1.6MPa
    Conncetion TypeFlange, thread, welding, clampControl typeSingle acting, double acting
    Applicabl mediumWater, netural gas or liquid allohol, oil, organic solvent, steamOptional accessorySolenoid valve, limit switch box, positioner, etc

    Thread Angle Seat Valves

    The Angle Seat Valve is a 2/2-way pneumatically actuated piston valve for liquids, gases, steam and some aggressive fluids (vacuum services also.) The superior design of the piston is unique to the market, enabling the plug to retract farther from the flow path, ensuring the highest flow capacity. The dual packing design, and a large diameter self aligning stem insures the highest cycle life. A full range of accessory items are available including limit switches, solenoid valves, manual override devices, stroke limiters.

    Valve Configurations

    • Spring Ret. N.C. Bi-directional Flow
    • Spring Ret. N.C. Flow from Above Plug
    • Spring Ret. N.O. Flow from Below Plug
    • Double Acting Bi-directional Flow
    • Manual Handle Bi-directional Flow
    Size D L L1 H D R T Weight
    DN15 1/2″ 133 68 126 62 33 11 1.1
    DN20 3/4″ 137 75 131 62 33 14 1.2
    DN25 1″ 151 90 142 62 33 15 2.2
    DN32 1-1/4″ 188 115 175 76 42 17 2.7
    DN40 1-1/2″ 190 115 175 76 42 17 4.8
    DN50 2″ 205 135 195 76 42 20 6.8

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