| Customization: | Available |
|---|---|
| Nominal Pressure: | 0.6 ~ 4.0 MPa |
| Nominal Diameter: | 50~ 1000 mm |
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This Diaphragm Type Pressure Relief Sustaining Valve is mainly used in pipeline system in the field of high-rises,mines,factories,pharmaceuticals and foodstuff etc. , functioned to reduce pressure. When the Water pressure exceeds the setting pressure of this Relief valve, the relief valve will open automatically to relief pressure quickly so as to protect the pipeline from being damaged. This valve can also be used as Pressure Sustaining Valve to ensure the upper stream water supply
Pressure Grade:PN10(Range of Adjustment 0.1~0.8Mpa)
PN16(Range of Adjustment0.2~1.4Mpa)
PN25(Range of Adjustment0.3~2.0Mpa)
Diaphragm Type:DN50~DN350
Piston Type:DN50~DN800
Main Parts and Material
| No | Parts Name | Material |
| 1 | Bonnet | CI/DCI/CS/SS |
| 2 | Spring | Spring Steel/SS |
| 3 | Diaphragm Gland | DCI |
| 4 | DiaphragmStem | NBR |
| 5 | Stem | 2CR13 |
| 6 | Disc | DCI |
| 7 | Sealing Gasket | NBR |
| 8 | Gasket Gland | DCI |
| 9 | Seat | SS |
| 10 | Body | CI/DCI/CS/SS |
| Valve Body | Connecting Mode | Strength Test | Seal Test | Applicable Temperature | Applicable Medium |
| Y- type /Double Chamber | Flange Connection | 1.5 Times of Nominal Pressure | 1.1Times of Nominal Pressure | ≤80ºC | Water and Oil |
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| L | 205 | 216 | 250 | 320 | 365 | 415 | 500 | 605 | 698 | 787 | 914 | 978 | 978 | 1150 |
| H | 300 | 337 | 467 | 520 | 580 | 640 | 778 | 889 | 1010 | 1037 | 1264 | 1294 | 1324 | 1600 |
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