• Voltech Tejas Valves Private Limited

Ball Valves, Investment Cast

Voltech hi-performance ball valves are reduced bore valves of three-piece sandwich construction with two body connectors, available in screwed or socket weld ends. The body of the valve fits between the connectors. It contains the ball, PTFE body connectors, seal and stem assembly. The corrosion resistant assembly is held between the body and connector bolting. This ensure leak tight shut-off in both directions under pressure or vacuum condition. The properties of low frictional PTFE seats are further enhanced by design to ensure positive shutoff, low torque of operation and absence of wear. Periodic maintenance and lubrication are not required, as PTFE seats possess self-lubricant characteristics. A special "Lip-Seal" design ensures retention of seal for many thousands cycles in handling oil, air, chemicals, gas, acids, alkali, oxygen, instrument isolation, freon, vacuum and other services. The stem assembly incorporates an anti-blow-out stem inserted from inside the body. The seal is effected by spring disc