Featuring a long cycle life and rugged design, our valves ensure customers get reliable service for the life of the product.
2 Way Valves
2 piece - Body manufactured from two castings and treaded together.Advantage: Lower cost.Disadvantage: Difficult to remove from the pipe work, usually non-replaceable
3 piece - Body manufactured from three castings and held together with tie rods .Advantage: Able to be removed from the pipework without disruption, repairable, usually a higher spec valve.Disadvantage: Usually more expensive
3 Way Valves
4 piece - Body manufactured from four castings and threaded together.
2 Way / 2 position
Two port valve that turns the flow ON or OFF
3 Way / 2 position
Three port valve that is available in two configurations
L-port - commonly used as a flow diverter. In one position port C is connected to port A, in the second position port C is connected to port B.
T-port - commonly used as a valve for draining or relieving the downstream pressure. In one position port C is connected to port A, in the second position port A is connected to port B.
Double Acting (DA) - pneumatic actuator that requires an air signal to turn it ON and a second signal to turn it OFF.Advantage: Quick operation and lower cost
Single Acting (SA) - pneumatic actuator with spring return that requires an air signal to actuate - spring to close.Advantage: Only a single signal required to operate - fail safe in the event of a power or air supply failure
A motorised gearbox drives the valve. Commonly used where compressed air is not available. Slower operation - usually 12 to 15 seconds - and not available in fail safe or spring return configuration.
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ValvesOnline supply a full range of valves including air valves, vacuum valves, steam valves, fluid valves and chemical valves. Actuated ball and butterfly valves with pneumatic and electric actuators. ...