• Tejas Precision Products

BALL VALVES

Tejas Precision Products offers Ball Valves. It ensures high performance. It is reduced bore valve of three piece sandwich construction with two body connectors. It is 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 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 in corporate an anti-blow-out stem inserted from inside the body. The seal is effected by spring discs loading a PTFE stem seal positioned between shoulders on the stem and the body. A 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 has triple tier sealing arrangement across the stem to prevent any leakage: a primary seal between body and stem effected by a PTFE "O" ring; a second carbon filled gland packing and stainless steel gland material provides flexibility and rigidity at the top of the stem to prevent any leakage across the stem length; and thirdly, two Belleville spring washers live load and stem and adjust for any wear or expansion and contraction due to temperature fluctuations. It 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. Arrangement for dairy/ pharma applications is also offered on end connection.