Gas/Hydraulic Gate Valve Operator
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Basic Features
Readily adaptable to all rising stem valves
Direct connection to valve stem
Standard temperature range from -50°F (-46°C) to =150°F (=65°C). For other temperature requirements, consult factory
Material of construction to suit process and ambient conditions
Adaptable to “NACE” trim valves (MR-01-75); suitable for operation with sour power gas on application
Piston with non-metallic wear ring to prevent piston/cylinder scuffing
Zero leakage piston and rod seals; material to suit application
Suitable for 1480 psig (102 barg) maximum working pressure for tank diameters NPS 8 or less; higher pressure on application
Suitable for 1450 psig (100 barg) maximum working pressure for tank diameters NPS 8 or less; higher pressure on application
Complete control packages featuring rugged Bettis poppet style relays to suit specific application
Full pressure control packages available for use where specifications disallow regulators
Manual pump for emergency operation
Manifold controls are fully enclosed and weather protected by lockable cover
Special locking valve maintains operator and valve in any desired position, and provides thermal relief protection
Thrust limiting devices available
Visual valve position indication
Convert pipeline gas pressure into a powerful hydraulically controlled thrust to open/close the valve
Readily adaptable for fail safe operation
Widely used in pipeline systems, critical production and process applications
Gas/Hydraulic and volume tanks are designed and constructed in our ASME certified facility to Section VIII DIV. 1, and CSA B51 OR ASME certification and local regulatory approval can be provided
Petroleum hydraulic fluid is standard in all Bettis gas/hydraulic systems (e.g. Esso Univis J13 or N22, Aeroshell Fluid 4); see page 26 for specifications. Other fluids, including biodegradable, available on request