Components

1	Body	Cast iron/ductile iron
2	Seat	Brass/Bronze/Stainless steel
3	Disc	Cast iron/ductile iron
4	Hanger	Cast iron/ductile iron
5	Ingo pin	Stainless steel
6	Bonnet	Cast iron/ductile iron

Application
1.Face to face is according to MSS-SP-71
2.Flange drilled is according to B16.1/B16.5

Test 
Working pressure         125psi                 150psi
Shell pressure                 1.5*working pressure
Seat pressure                 1.1*working pressure

Dimensions

DN	50	65	80	100	125	150	200	250	300
L	203	216	241	292	330	356	495	622	698
H	130	135	152	186	197	235	286	305	352
D	152	178	191	229	254	279	343	406	483