SS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS 1. Material: Stainless Steel 2. ... , 347H, 317L, ... SpecificationSS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS Screwed Type NPT Ball Valves1)materail:SS304,SS316,CF8M,CF82 ... ',3',4'3)working pressure:1.6-4.0Mpa4)Temperature Range:-40-180-2805)suitable medium:water,oil.air ..etc6)female ...