Forged Steel Ball Valve
API Forged Steel Trunnion Type Ball Valve
Main parts and materials : Parts name material
Body Bonnet A150;A182-F316;A350-LF2
Stem A276-304;A276-316
Seat   A105+ENP;A182-F316;A350-LF2+ENP
Ball  A182-F304 1);A182-F306;
Standards
Design and Manufacture
Face to face Flange end Inspection Fire durable 
API 6D,BS5351 ANSI B16.10 ASME B16.5 API 598/API 6D API607
Test pressure 
Test item Shell test Seal test Back  seal test Air seal test
Medium(MPa) water(MPa)  Air (MPa)
Pressure
(class) 150 3.1 2.2 2.2 0.5~0.7
300 7.8 5.6 5.6
600 15.3 11.2 11.2
900 23.1 16.8 16.8
1500 38.4 28.1 28.1