YOSHITAKE,耀希达凯,GP-2000,GP-1000,日立阀门

  YOSHITAKE,耀希达凯,GP-2000,GP-1000,日立阀门  

 

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Pressure Reducing Valve(Drain Separator/Check Valve/Water hammer arrestor)
GD-7B
* Simple design mechanism
* A dual-valve format minimizes the effects of inlet pressure fluctuations.
* Suitable for lubricating oil, and heavy fuel oil.
Image: GD-7B

Feature Piston type / Cast iron / Flanged
Type Direct-acting type
Specifications Application Cold and hot water , Oil , Non-dangerous fluids
Inlet pressure 0.1 - 1.0MPa
Reduced pressure 0.05 - 0.7MPa(*1)
Connection JIS 10K FF
Reduced pressure 85% or less of the inlet pressure(gauge pressure)
Min. differential pressure 0.05MPa
Max. pressure reduction ratio(*2) 20:1
Max. temperature 80 degree(C)
Material Body Cast iron
Valve NBR
Valve seat Bronze
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
3/4"-2" --- 20:1
2 1/2"-6" --- 15:1

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

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Dimensional drawing
Dimensional drawing:GD-7B

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