Pressure Relief/Sustaining Valve
PRESSURE RELIEF VALVE
1. Main Valve
2. Needle Valve
3. P500
4. Ball Valve
5. Inlet Pressure Gauge (Optional)
6. Strainer
Function
1. Relief: whenever the system pressure exceeds the preset of pilot, the valve will immediately open to
release excess pressure. And keep the system in a safety environment.
2. Sustaining: prevents upstream pressure (mainline) from dropping below the preset pressure.
| No. | Description | Material | Standard |
|---|---|---|---|
| 1 | Cap | Plastic | ABS |
| 2 | Adjusting Screw | Stainless Steel | AISI 304 |
| 3 | Jam Nut | Stainless Steel | AISI 304 |
| 4 | Spring Table | Stainless Steel | AISI 304 |
| 5 | Bonnet | Stainless Steel | AISI 304 |
| 6 | Spring | Spring Steel | SiCrV |
| 7 | Nut | Stainless Steel | A2 |
| 8 | Spring Table | Spring Steel | Mn-steel+Ni Plated |
| 9 | Fixing Holder | Stainless Steel | AISI 304 |
| 10 | Screw | Stainless Steel | A2 |
| 11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon |
| 12 | Gasket | Stainless Steel | AISI 304 |
| 13 | O-Ring | Rubber | NBR |
| 14 | Internal Body | Stainless Steel | AISI 304 |
| 15 | O-Ring | Rubber | NBR |
| 16 | O-Ring | Rubber | NBR |
| 17 | Stem | Stainless Steel | AISI 304 |
| 18 | Disc | Stainless Steel + Rubber | AISI 304 + EPDM |
| 19 | Body | Stainless Steel | AISI 304 |