SS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS 1. Material: Stainless Steel 2. ... 317L, ... SpecificationSS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS Screwed Type NPT Ball Valves1)materail:SS304,SS316 ... ,CF8M,CF82)Size:1/2',3/4',1 ... ',11/4'11/2',2',21/2',3',4'3)working pressure:1.6-4.0Mpa4)Temperature ...