Main parts and materials:
Parts name |
material | ||||
Body,Bonnet disc |
A216WCB |
A352 LCB; A217 WC6; A217 WC9; A217 WC5; A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
Arm pin |
A182 F6 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
Seat ring |
A105+13Cr;A105+STL;A182 304;A182 316 | ||||
Disc ring |
13Cr;STL;A351 CF8;A351 CF8M |
Standards
Design and Manufacture |
Face to face |
Flange end |
Inspection |
ANSI pressure-temp rating |
BS1868; ANSI B16.34 |
ANSI B16.10 |
ANSI B16.5 |
API 598 |
ANSI B16.34 |
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 |