Applicable Standards
1.Design and Manufacture
API 602, BS5352, ASME B16.34
2.Connection end Socket Weld End(SW):ASME B16.11
Threaded End(NPT):ASME B 1.20.1
Butt-Weld End(BW):ASME B 16.25
Flange End(RF/RTJ):ASME B 16.5
3. Test & Inspection
API 602, API 598
4. Design Description
Bolted Bonnet(BB),
Welded Bonnet(WB),
5. Main Materials:
A105,LF2,F5,F11,F22,
304(L),316(L),F347,F321,
F51,Alloy 20, Monel
Check valve is also called counter flow valve, check valve, back pressure valve and one-way valve. This kind of valve is automatically opened and closed by the force generated by the flow of the pipeline medium itself. It belongs to an automatic valve. The check valve is used in the pipeline system. Its main function is to prevent the backflow of medium, the reverse rotation of pump and its driving motor, and the discharge of medium in the container. The check valve can also be used on the pipeline to supply the auxiliary system in which the pressure may rise above the main system pressure.
The check valve can be applied to pipelines with various media according to different materials.
No. |
PART |
ASTM Material |
|||||
A105 |
LF2 |
F11 |
F304(L) |
F316(L) |
F51 |
||
1 |
BODY |
A105 |
LF2 |
F11 |
F304(L) |
F316(L) |
F51 |
2 |
DISC |
F6a |
F6a |
F6a+STL |
F304(L) |
F316(L) |
F51 |
3 |
SEAT |
410 |
410 |
410+STL |
304(L) |
316(L) |
F51 |
4 |
GASKET |
304+Graphite |
304+Graphite |
316(L)+Graphite |
316(L)+Graphite |
||
5 |
BONNET |
A105 |
LF2 |
F11 |
F304(L) |
F316(L) |
F51 |
6 |
BOLT |
B7 |
L7 |
B16 |
B8(M) |
B8(M) |
B8M |
7 |
PIN |
410 |
304(L) |
316(L) |
F51 |
||
8 |
HINGE |
304 |
304(L) |
316(L) |
F51 |
||
9 |
NUT |
A194 2H |
8 |
8M |
8M |
||
10 |
SPRING |
Ss316 |
If you want to order the one piece body, please contact sale department
CL800 |
Bolted Bonnet/Welded Bonnet, Full Port/Reduced Port,Outside Screw and Yoke(OS&Y). |
|||||||||
Size(NPS) |
R.P |
1/2 |
3/4 |
1 |
1.1/4 |
1.1/2 |
2 |
|
||
F.P |
3/8 |
1/2 |
3/4 |
1 |
1.1/4 |
1.1/2 |
2 |
|||
Face To Face |
L |
Lift type |
79 |
92 |
111 |
120 |
152 |
172 |
220 |
|
Swing type |
79 |
92 |
111 |
120 |
120 |
140 |
178 |
|||
Height |
H |
Lift type |
61 |
61 |
78 |
84 |
103 |
118 |
132 |
|
Swing type |
61 |
61 |
78 |
84 |
101 |
120 |
133 |
|||
Flow Port Diameter |
d |
Lift type |
10.5 |
13.5 |
17 |
22 |
28 |
34 |
43 |
|
Swing type |
10.3 |
13.5 |
18 |
23 |
29 |
36 |
45 |
|||
Weight |
Lift type |
1.5 |
1.7 |
3.3 |
4.2 |
6.3 |
10.5 |
12.5 |
||
Swing type |
1.5 |
1.7 |
3.3 |
4.2 |
5 |
8.5 |
10.9 |
NOTE:If you want to order the one piece body, please contact sale department,
CL900 and CL1500 have the same face to face dimension.