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Hippo Piston Air Operators for Remote Operation
![](./images/catimages/4aophoto1.gif)
To 60,000 psi
Hippo Piston Air Operators are available for both normally open service (spring to open/air to close) and for normally closed service (air to open/spring to close). These piston air operators provide remote automatic on/off operation of valves and can be controlled by means of an air regulator, an electrical solenoid, or a manual low pressure valve in the user's air supply line. Air inlet is 1/8" NPT. Air pressure requirement ranges from 35 psi to 120 psi.
These operators may be supplied with the valves and operating pressures shown in table.
EXAMPLES:
20-11LF4-MPO-NC (normally closed)
20-12LF6-HPO-NO (normally open)
OPTIONS: | Stems & Seats | Carbide, ceramic Stellite (for cyclic service) |
Valve Bodies | Hastelloy C, Hastelloy B Inconel 600, Inconel 625 Incoloy 800, Incoloy 825 Titanium Grade 2, Titanium 6AL4V Nickel Monel |
|
Packing | PolyPak, High Cyclic | |
Temperature Considerations. | Extended stuffing box for temperatures from -423°F to 1,200°F (medium and high pressure connections only) |
Normally Open (Spring To Open/ Air To Close)
![ID: 202: Normally Open (Spring To Open/ Air To Close):4ao:1:6](./images/catimages/4aochart1.png)
Normally Closed (Air To Open/ Spring To Close)
![ID: 203: Normally Closed (Air To Open/ Spring To Close):4ao:2:6](./images/catimages/4aochart2.png)
Downloads
![Air Operated Valves](./pdfs/thumbs/ao.png)
Air Operated Valves
Download![Hippo - Piston Open - Operating and Maintenance](./pdfs/thumbs/Hippo - Piston Open - Operating and Maintenance.png)
Hippo - Piston Open - Operating and Maintenance
Download![Hippo - Piston Closed - Operating and Maintenance](./pdfs/thumbs/Hippo - Piston Closed - Operating and Maintenance.png)
Hippo - Piston Closed - Operating and Maintenance
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Valves, Fittings & Tubing, Pressure Vessels & Reactors Catalog
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Condensed Catalog
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Pricelist
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International Pricelist
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