Hippo Piston Air Operators for Remote Operation

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.
     To order simply specify catalog number of valve and appropriate suffix of operator required.
EXAMPLES: Hippo 20-11LF4-MPO-NC (normally closed)
Hippo 20-12LF6-HPO-NO (normally open)
Stems & Seats Carbide, ceramic or Stellite (for cyclic service)
Stellite (for cyclic service)
Valve Bodies Hastelloy C, Hastelloy B
Inconel 600, Inconel 625
Incoloy 800, Incoloy 825
Titanium Grade 2, Titanium 6AL4V
Packing PolyPak
Temperature Considerations Extended stuffing box for temperatures from -423F to 1,200F (medium and high pressure connections only)

Normally Open
(Spring To Open/Air To Close)

Normally Closed
(Air To Open/Spring To Close)


Valves, Fittings & Tubing

Taper Seal Valves

NPT Valves

Medium Pressure Valves

High Pressure Valves

Ultra High Pressure Valves

Specialty Valves

Air Operated Valves



Reactors & Pressure Vessels

Pressure Vessel Selection

O-Ring Seal Reactors

Confined Gasket Closure Reactors

Bolted Closure Reactors

Clover Leaf Reactors

O-Ring Closure Reactors

Micro Reactors

Tubulars Reactors

Pumping Systems

Air Operated Hydraulic Pumping System

System Capabilities

Standard Pumping System Specifications

150,000 psi Pumping System

Intensifiers & Gas Boosters


Gas Boosters

High Pressure Generators

Oil & Gas Products

Sour Oil & Gas Valves

Sour Oil & Gas Fittings


Tubing & Nipples

Wellhead Gauge & Bleed Valves