* High Quality Lost-Wax Casting. * 6000psi deisgn/ welding body is available. * Suitable for usage of gas and water application with high pressure and temperature max. up to 266°F(130℃) * Seat Materials : Delrin + Graphite which is mode effectively reducing operating torques compare to only with Delrin * API607 Fire safe design Model HPV-260MFS upon request. * Materials complied with NACE MR0175 and MR0103
ASTM A216 WCB ASTM A351 CF8/CF8M
Delrin+Graphite seat: -20 to 93℃