Product Description
A Gate valve is a linear-motion manual valve that has a vertical rectangular or circular disc that slides across an opening to stop the flow that acts as "gate". Generally used for isolation purposes fully open or close, Gate valves are not suitable for throttling service because the high-velocity flow will cause a partially open disk to vibrate and chatter and will hasten the erosion of the disc and seating surfaces.
Bellows seal gate valve(butt welding end):
1)Standards:
A)Design&Manufacture: API 602, BS 5352, ASME B16.34
B)Face to Face: MSS SP-84
C)Connection End: ASME B2.1, ASME B16.11
D)Test and Inspection: API598
2)Sizes: 1/2" - 2" or DN12 - DN50
3)Pressure Rating: Class150 - Class1500 or PN16 - PN250
4)Material: A105, LF2, F11, F22, F5, F304, F304L, F316, F316L, etc.
5)Operated by: Handwheel
materials of parts |
no |
part name |
ecarbon steel |
stainless steel |
low temperature carbon steel |
1 |
body |
a216-wcb |
a217-wc6 |
a352-lcb |
2 |
cover |
a216-wcb |
a217-wc6 |
a352-lcb |
3 |
disc |
a105-cr13 |
a182-f11+hf |
a350-lf2+cr13 |
4 |
hinge |
a216-wcb |
a217-wc6 |
a352-lcb |
5 |
fork part |
a216-wcb |
a217-wc6 |
a352-lcb |
6 |
seat ring |
a105+cr13 |
a182-f11+hf |
a350-lf2+cr13 |
7 |
hinge pin |
a276-420 |
a276-304 |
a276-420 |
8 |
disc washer |
carbon steel |
a276-304 |
carbon steel |
9 |
disc nut |
carbon steel |
a194-7 |
carbon steel |
10 |
disc nut pin |
carbon steel |
a276-420 |
carbon steel |
11 |
gasjet |
spiral wound (graphite+304) |
12 |
stud |
a193-b7 |
a193-b16 |
a320-l7 |
13 |
stud nut |
a194-2h |
a194-7 |
a194-4 |
13 |
eyebolt |
carbon steel
|
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