A ball valve is normally a quarter turn valve where a machined, hollowed out ball can be turned in an outer casing to the open position for full flow or to the closed position to obstruct flow within a pipeline.
here are other designs that allow the flow to be mixed or diverted to particular pipe directions. The general body types for ball valves are single body or 1 piece, split body ( 2 or 3 piece), side and top entry trunnion mounted and welded. With trunnion mounted ball valves, the anchoring of the ball absorbs the thrust from the line pressure preventing excess friction between the ball and seats. At full working pressure the operating torque for a pneumatic or electric actuator is comparatively low.
These can be actuated manually by levers, hand wheels, using compressed air in pneumatic actuators or electrically. Most ball valves are of the floating seat design because of cost and weight considerations. For the food industry sanitary ball valves need to be used where they are in contact with food ingredients.
Midwest Valves & Controls sell a great range of products from industrial valves to pumps, PVC, layflat and rubber hoses, industrial instruments, pipe fittings, pneumatically operated equipment and food grade polyethylene tanks.
Located in the Central West of New South Wales, Midwest Valves & Controls deals with customers Australia wide. Our location helps us to ensure that our overheads are low, which results in very competitive pricing, especially for quality industrial valves.
Midwest Valves & Controls' customer service is second to none and we guarantee satisfaction with each sale.