Pressure Reducing Valve
GD-28S
* Max. inlet pressure: 1.6 MPa * Wetted parts: Stainless steel * Low noise and stable pressure control * Integral strainer prevents dirt problem. * Closed construction makes no leakage outside |
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Feature | Direct-acting type / Stainless steel wetted parts / 1.6MPa | |
Type | Direct-acting type | |
Specifications | Application | Cold and hot water |
Inlet pressure | Max. 1.6MPa | |
Reduced pressure | 0.05 - 0.7MPa(*) | |
Connection | JIS Rc screwed | |
Min. differential pressure | 0.05MPa | |
Max. pressure reduction ratio | 10:1 | |
Max. temperature | 90 degree(C) | |
Material | Body | Stainless steel |
Valve | Synthetic rubber | |
Seat | Stainless steel | |
Diaphragm | Synthetic rubber |

* Reduced pressure (A): 0.05-0.35 MPa (B): 0.3-0.7 MPa |
Size | L (mm) | H (mm) | Weight (kg) | Cv value |
20A(3/4) | 135 | 170 | 2.2 | 2.3 |
25A(1) | 135 | 170 | 2.2 | 3.5 |
32A(1 1/4) | 180 | 224 | 4.7 | 6 |
40A(1 1/2) | 180 | 224 | 4.5 | 7 |
50A(2) | 200 | 239.5 | 6.5 | 11 |
[About flow rate]
Selection data: | Rated Flow Flowrate Chart Nominal Size Selection Chart |

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Drawing (191 KB) |
CAD external view (83 KB) |