Primary Pressure Regulating Valve GD-20R | Yoshitake Inc.

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Primary Pressure Regulating Valve

GD-20R

* Discharge excess pressure and maintain a constant line pressure as a pump relief valve
* Prevents falling water conditions in the open circuits of high-rise buildings
Image:GD-20R

Feature Direct acting type / Ductile cast iron
Category Primary pressure regulating valve
Specifications Application Cold and hot water , Oil (kerosene , heavy oils A and B) , Air , Other non-dangerous fluids
Pressure regulating range 0.05 - 0.7MPa(*)
Connection JIS 10K FF flanged
Material Body Ductile cast iron
Valve seat Stainless steel or Bronze
Valve disc NBR
Diaphragm NBR
Remarks
* 15A-80A
A: 0.05-0.25 MPa
B: 0.26-0.7 MPa
100A-150A
A: 0.05-0.25 MPa
B: 0.26-0.5 MPa

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Size L (mm) H (mm) Weight (kg) Cv value
15A(1/2) 145 309 8.2 1.5
20A(3/4) 150 309 8.2 2.7
25A(1) 150 330 10 4
32A(1-1/4) 195 395 17.3 8.5
40A(1-1/2) 195 395 17.3 11
50A(2) 195 409 19.2 14
65A(2-1/2) 270 555 40 23
80A(3) 270 582 43.7 32.5
100A(4) 308 645 70 48
125A(5) 380 849 145 75
150A(6) 400 918 175 108


Dimensional drawing
Dimensional drawing:GD-20R

Data Downloading
Drawing (721 KB)
CAD external view (165 KB)

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