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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Process Systems | Air, Vacuum, Fluid, Chemical & Steam Valves
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. Valvesonline's manufacturing company Process Systems Pty Ltd holds large stocks of components and finished products.
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