Tigerrig DF Series Check Valve
Product Description：
When the mud is injected into the wellbore, it can only be entered from the low port end of the single-flow valve and output from the high port end, and the mud will not flow backward when the pump is stopped.Normally and during blowout, the high-pressure fluid at the wellhead will not flow out along the single-flow valve, and the self-sealing effect is good.
Specifications
Specifications and Models
The main size
Inlet and outlet aperture
Working pressure
End distance (mm)
Flange Connections
mm
in
MPa
psi
DF31/8-21
80
31/8
21
3000
435
6B31/8-21 R31
DF31/8-35
35
5000
473
6B31/8-35 R35
DF31/16-70
78
31/16
70
10000
619
6B*31/16-70 B*154
DF31/16-105
105
15000
598
6B*31/16-105 B*154
DF29/16-21
65
29/16
422
6B29/16-21 R27
DF29/16-35
6B29/16-35 R27
DF29/16-21(B*153)
6B29/16-35 B*153
DF29/16-70
565
6B*29/16-70 B*153
DF29/16-105
533/635
6B*29/16-105 B*153