150LB, 300LB, 600LB 800LB Bolted Bonnet or Welded Bonnet Gate Valve Conform to API 602, BS5352, and ASME B16.34.
They are tested according to API 598, and marked as per MSS SP-25
1. Construction is as follows
- Full Port or Standard Port |
- Outside Screw and Yoke(OS&Y) |
- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet |
- Integral Backseat |
- Loose solid disc |
- Socket Weld Ends to ASME B16.11 |
- Butt Weld Ends to ASME B16.25 |
- Screwed Ends to ANSI/ASME B1.20.1 |
- Flanged Ends to ASME B16.5 |
2. Main Part & Materials
Part Names |
Part Materials |
Body |
A105 |
LF2 |
F22 |
F304 |
F316 |
F304L |
F316L |
B62 |
Bonnet |
A105 |
LF2 |
F22 |
F304 |
F316 |
F304L |
F316L |
B62 |
Disc/Ball/Wedge |
A105 |
SS304 |
F22 |
F304 |
F316 |
F304L |
F316L |
B62 |
Stem |
A105 |
F304 |
F6a |
F304 |
F316 |
F304L |
F316L |
B62 |
Seat/Seat Ring |
13%Cr |
SS304 |
13%Cr |
F304 |
F316 |
F304L |
F316L |
B62 |
Packing |
Graphite/PTFE |
Gasket |
SS304+Graphite/SS304+Graphite |
Bolts/Nuts |
B7/2H |
L7/4 |
B16/4 |
B8/8 |
B8M/8M |
B8/8 |
B8M/8M |
B8M/8M |
Suitable Medium |
W.O.G etc. |
HNO3, CH3OOH etc. |
Sea Water etc. |
Suitable Temperature |
-29~425 °C |
-46~340 °C |
-46~340 °C |
-196~427 °C |
-196~427 °C |
-196~427 °C |
-196~427 °C |
-29~220 °C |
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN15~DN50, 1/2"~2"