Description: Screwed or Socket Weld Ends Ball Valves are reduced bore valves of three piece sandwich construction with two body connectors. The body of the valve fits between the connectors. It contains the ball, PTFE body connectors seal and stem assembly. The corrosion resistant ball is held between the body connector bolting. This ensures leak tight shut-off in both directions under pressure or vacuum conditions. The stem assembly incorporates an anti-blowout stem inserted from inside the body. The seal is affected by spring discs loading a PTFE stem seal positioned between shoulders on the stem and the body. The special 'Lip-Seat' design ensures retention of seal for many thousands cycles in handling oil, air, chemicals, gas, acids, alkali, oxygen, instrument isolation, Freon, vacuum and many other services. The company offers screwed, socket weld, flanged ends to ASA Class 150, ASA Class 300, British standards, BS10 Table 'D''E''F' drillings and DIN standard drillings as option.
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