SS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS 1. Material: ... austenite stainless 310H, 347H, 317L, ... SpecificationSS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS Screwed Type NPT Ball Valves1)materail:SS304 ... :water,oil.air ..etc6)female male bspt npt lp7)1000wog,with locked handStandards1)design and manufacture stand:API608/API607/API6D,BS53512 ...