Pressure Reducing Valve/Drain Separator

GD-7B

* Simple design mechanism
* A dual-valve format minimizes the effects of inlet pressure fluctuations.
* Suitable for lubricating oil, and heavy fuel oil.





GD-7B

Specifications

Features For liquid, double-seated, pressure balance structure
Type Direct-acting type
Specifications Product type Direct-acting type
Nominal size 20A (3/4") - 150A (6")
Application Water, oil, non-dangerous fluids
End connection JIS 10K FF flanged
Inlet pressure 0.1 - 1 MPa
Reduced pressure 0.05 - 0.7 MPa (*1)
Reduced pressure 85% or less of the inlet pressure(gauge pressure)
Min. differential pressure 0.05 MPa
Working temperature 5 - 80 degree(C)
Material Body Cast iron
Valve NBR
Valve seat Stainless steel
Piston Bronze

Remarks

*1 Reduced pressure
1) 20A-50A
(A): 0.05-0.25 MPa
(B): 0.25-0.45 MPa
(C): 0.45-0.7 MPa
2) 65A-150A
(A): 0.05-0.2 MPa
(B): 0.2-0.5 MPa
(C): 0.5-0.7 MPa
*2 Max. pressure reduction ratio
20-50A --- 20:1
65-150A --- 15:1

Dimensions and Weights
Size L (mm) H (mm) Weight (kg) Cv value
20A(3/4) 170 535 20 2
25A(1) 170 535 22 3
32A(1 1/4) 180 545 23 4
40A(1 1/2) 180 545 23 5
50A(2) 180 565 26 8
65A(2 1/2) 215 680 41 12
80A(3) 260 705 51 16
100A(4) 300 755 66 20
125A(5) 360 815 90 25
150A(6) 382 885 129 30

About flow rate

Dimensional drawing

Dimensional drawing