FAS Type X1 John Crane® Type 8-1 Replacement FeaturesSpecificationsQuote Request Features Technical Features Unbalanced Multi-spring Bi-directional Dynamic O-ring Specifications Materials ROTARY FACES: Carbon Graphite, Silicon Carbide, Tungsten Carbide STATIONARY SEATS: Ceramic, Silicon Carbide, Tungsten Carbide O-RINGS: Buna, Viton, EPDM, Aflas, Neoprene METAL PARTS: 316 SS SPRINGS: Hastelloy C-276 Operating Parameters Dimensions: 0.500” – 4.000” Max Pressure: 350 psi (24 bar) Max Temperature: 400°F (205°C) Velocity: 4000 fpm (20 m/s) Quote Request Request A Quote
