DN: 3"
PN: 300LB
Pressure test:
Shell test: 7.8 MPa
Seal test(liquid): 5.6MPa
Seal test(steam): 0.6MPa
Back seal test: 5.6MPa
Suitable tempreture: Less than 425 degree centigrade
Suitable medium: Water, steam, oil and so on

The material of body and bonnet and packing gland is A216-WCB
The material of stem is A276-420
The material of disc and s is A105-77
The material of stem mut is A439 D2
The material of packing is soft asbestos
The material of hand wheel is A-197
The material of double head screw is A-193 B7