Process Systems have ball valves to cover all applications. Featuring a long cycle life and rugged design, our valves ensure customers get reliable service for the life of the product.
Please make your selection of brass, stainless steel, plastic body or manual from the navigation bar to the left. Once selected, the individual product series will appear in this screen.
Now is a good time to explain some of the terminology used in order to help you with your selection.
2 Way Valves
3 Way Valves
- 2 piece - Body manufactured from two castings and threaded together.
Advantage: Lower cost
Disadvantage: Difficult to remove from the pipe work, usually non-replaceable
- 3 piece - Body manufactured from three castings and clamped with tie rods.
Advantage: Able to be removed from the pipework without disruption, repairable, usually a higher spec valve
Disadvantage: Usually more expensive
- 4 piece - Body manufactured from four castings and threaded together.
2 Way / 2 position
3 Way / 2 position
- Two port valve that turns the flow ON or OFF
- 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.