Brief introduction：
The check valve is designed and manufactured according to API 6D and ANSI B 16.34.It can work in high temperature and pressure circumstance. It also has the features of good appearance, nice function and superior. Widely used with petroleum，chemistry，water treatment industries.
Main part & material
Part name |
Material |
body |
WCB,ZG1Cr18Ni9Ti,CF8,CF8M |
Disc |
1Cr18Ni9Ti 304,316 |
stem |
1Cr18Ni9Ti 304,316 |
Seal ring |
304,316(CF8,CF8M) |
Packing |
Polytetrafluoroethlene (PTFE) |
Main outer size mm
 
DN |
G |
L |
E |
B |
H |
6 |
1/4" |
6 0 |
10 |
24 |
45 |
10 |
3/8" |
6 0 |
10 |
24 |
45 |
15 |
1/2" |
65 |
12 |
26 |
48 |
20 |
3/4" |
80 |
17 |
32 |
53 |
25 |
1" |
91 |
20 |
14 |
59 |
32 |
1-1/4" |
104 |
20 |
51 |
70 |
40 |
1-1/2" |
120 |
20 |
58 |
75 |
50 |
2" |
140 |
23 |
69 |
84 |
Specification
Nominal pressure(Mpa) |
PN |
2.5,4.0 |
Strength testing pressure(Mpa) |
PT |
3.8,6.0,9.6 |
Low pressure seal test(Mpa) |
|
0.6 |
High pressure seal test(Mpa) |
|
2.8,4.4,7.04 |
Applicable medium |
water, oil, gas, nitric acid, acetic acid |
Applicable temperature |
-40 ～ 180 ℃ |
Feature:
⊙Resist friction
Valve disc is given enough intensity and rigidity. Disc sealing surface may be built-up welded with satellite alloy inlaid or other material responding to the users’ request.
⊙Agility of switch
Solid ping is precisely installed and provided with high intensity to ensure operational performance and service life of valve.
⊙Sealing credibility
The check valve adopt swing configuration. All the sealing part inside the valve, so all exterior leak may except the middle flange, and also the middle flange gasket may be different
according to pressure class.
⊙Distortion compensating
The disc and the hinge are connected between slippery spherical surface, and this makes the disc can circumgyrate in a little angle and regulates the sealing capability. |
