1. Design Advantages • Most economically low priced ball valve • Working pressure ratings similar to Safety Block style @ 150 p.s.i • Offered in socket, threaded and flanged end connections. • Handle position indicates open/ close position TVI Compact Ball Valves ( 1/ 2" - 4" ) Design Specifications Thermoplastic ball valves 1/ 2" - 4" shall be compact type and have a one piece molded body with socket or threaded end connections. Seats shall be EPDM or Teflon® . Every valve is fully pressure and cycle tested to insure a quality molded in place finished product.Valves have a one piece self centering ball and stem design for leak tight operation. Materials of construction shall be as follows: ( select as required for service) * Body PVC, CPVC, ASTM D-1784 * Ball & Stem PVC, CPVC, ASTM D-1784 * Seats EPDM, Ethylene Propylene Diene Monomer Teflon® DuPont Performance Elastomers. * Seals EPDM, Ethylene propylene Diene Monomer Viton® DuPont Performance Elastomers * T Handle ABS D-1788 End connectors shall conform to the following standards: * Socket ASTM - D-2467 ( PVC, SCH-80) ASTM - F-439 ( CPVC, SCH-80) * Threaded ASTM - D-2464 ( PCP, SCH-80) ASTM - F-439 ( CPVC, SCH-80) .
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