Pressure Reducing Valve
GD-4
* High accuracy * Stable low pressure control |
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Feature | Low pressure control / Cast iron / Flanged | |
Type | Direct-acting type | |
Specifications | Application | Air , Non-dangerous fluids |
Inlet pressure | Max. 300kPa | |
Reduced pressure | 2 - 200kPa(*1) | |
Connection | JIS 10K FF flanged | |
Adjustable reduced pressure | 70% or less of the inlet pressure(gauge pressure) | |
Min. differential pressure | 0.003MPa(*2) | |
Max. pressure reduction ratio(*3) | 7:1 | |
Max. temperature | 80 degree(C) | |
Material | Body | Cast iron |
Main valve | NBR (15-50A) , Stainless steel (65-150A) | |
Main valve seat | Stainless steel | |
Diaphragm | NBR |

*1 Contact us pressure range for each valve. *2 Min. differential pressure Φ256: 3kPa Φ340: 2kPa Φ400: 1kPa *3 Max. pressure reduction ratio 15-50A: 7:1 65-150A: 10:1 |
Size | L(mm) | H(mm) | Weight(kg) | Cv value |
20A(3/4) | 170 | 560 | 27 | 2 |
25A(1) | 170 | 560 | 28 | 3 |
32A(1 1/4) | 180 | 580 | 28 | 4 |
40A(1 1/2) | 180 | 580 | 29 | 5 |
50A(2) | 180 | 590 | 31 | 8 |
65A(2 1/2) | 215 | 695 | 39 | 21 |
80A(3) | 260 | 715 | 48 | 27 |
100A(4) | 300 | 785 | 64 | 42 |
125A(5) | 360 | 840 | 88 | 72 |
150A(6) | 382 | 895 | 123 | 94 |

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Drawing (507 KB) |
CAD external view (336 KB) |