Vespel Soft Valve Seats, Application Automobile, Media Oil

Vespel parts and shapes ball valve seats and sealsvalve seats and seals made from diverse polymers and composite material systems function as achieve bubble, Tight closure in high chemical hazard and extreme temperature processes. Typically for valves that need to seal at extreme temperature conditions and metal seated, High pressures valves are used made up of a tungsten carbide to 260 c or chromium carbide > 260 c coating on the ball and seats. Because the compressive modulus of metals is very high > 500gpa, It is much harder to make an effective seal and make the valve bubble tight. Due to creep, Many polymers become difficult to use much above their glass transition temperature at higher pressure classes. Reduced coefficient of friction diverse assortment of temperature capabilities from cryogenic, 320 f 196 c, To 550 f 288 c, With excursions up to 900 f 482 c low coefficient of thermal expansion broad chemical compatibilityfeatures Strong resistance to abrasion high creep resistance high toughness and impact resistance simple to work with in machining processes to tighter tolerances high pressure capability As high as 3000 psi 20. 7 mpa wide operational temperature range, From, 269 c, 452 f up to more than 300 c 572 f, With short excursions A maximum of 480 c 896 f .