... 1PC Thread Ball Valve,800PSI 1) Investment casting. 2) Competitive Prices 3)SS201,SS304 Stainless Steel 1PC Thread Ball Valve,800PSI Advantages1) Investment casting.2) Competitive Prices3 ... : ASME B 1.20.1(NPT), BS21(BSP), DIN 2999(PT)/259, ISO 228/1. Size: 1/4", 3/8", 1/2", 3/4", 1", 11/4", 1.1/2", 2" ,2.1/2", 3", 4 ...