Suzhou Alpine Flow Control Co., Ltd
Suzhou Alpine Flow Control Co., Ltd Be The Market Leader In Water Flow Control Valve
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Nylon Reinforcement Diaphragm Anti Water Hammer Surge anticipating Valve
A2A5 is a surge anticipation valve and it can protect the pumps, pumping equipment and all applicable pipelines from dangerous pressure surges caused by sudden changes of flow velocity within a pipeline. When pump starts and stops gradually, harmful surges do not happen. Should a power failure take place, however the abrupt stopping of the pump can cause dangerous surges in the system
which could result in severe equipment damage.
Power failure for a pump will usually result in a down surge in pressure, followed by an up surge in pressure. The surge control valve opens on the initial low pressure wave, diverting the returning high pressure wave from the system. In fact, the valve has anticipated the returning high pressure wave and is open to dissipate the damage causing surge. The valve will then close slowly without generating any further pressure surges.
Service Fields:
For water system, irrigation system.
Technical Data:
| Size | DN50-DN800 |
| Working Temperature | - 10C- 80C |
| Flange | AISI B16.1 Or PN16 |
| Flow Media | Clean Water |
Consult Factory for other applications
IP68 for water resistance
Comply with BS EN 1074-5, ISO 5208, BS EN 12266-1, BS EN 558-1
Materials And Dimension
DN50-DN350
| No. | Description | Material | Standard |
| 1 | Body | Ductile Iron | GJS500-7 |
| 2 | Seat | Stainless Steel | AISI304/316 |
| 3 | O-ring | Rubber | NBR |
| 4 | O-ring | Rubber | NBR |
| 5 | Bolt | Stainless Steel | A2/A4 |
| 6 | Washer | Stainless Steel | A2/A4 |
| 7 | Bonnet | Ductile Iron | GJS500-7 |
| 8 | Bush | Bronze | C61900 |
| 9 | Spring | Stainless Steel | AISI304/316 |
| 10 | Caulking Nut | Stainless Steel | A4 |
| 11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon Fabric |
| 12 | Fixing holder | Ductile Iron | GJS500-7 |
| 13 | Disc Holder | Ductile Iron | GJS500-7 |
| 14 | Seal | Rubber | EPDM |
| 15 | Seat Retainer | Stainless Steel | AISI304/316 |
| 16 | Stem | Stainless Steel | AISI304/316 |
| 17 | Plug | Stainless Steel | AISI304/316 |
| 18 | Screw | Stainless Steel | A2/A4 |
| 19 | Plug | Stainless Steel | A2/A4 |
| 20 | Washer | Stainless Steel | A2/A4 |
DN400-DN800
| No. | Description | Material | Standard |
| 1 | Body | Ductile Iron | GJS500-7 |
| 2 | Seat | Stainless Steel | AISI304/316 |
| 3 | Screw | Stainless Steel | A2/A4 |
| 4 | Screw | Stainless Steel | A2/A4 |
| 5 | Screw | Stainless Steel | A2/A4 |
| 6 | Spring | Stainless Steel | AISI304/316 |
| 7 | Bonnet | Ductile Iron | GJS500-7 |
| 8 | Bush | Bronze | C61900 |
| 9 | O-ring | Rubber | NBR |
| 10 | Fix Washer | Bronze | C61900 |
| 11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon Fabric |
| 12 | Eye Bolts | Carbon Steel | 1040 |
| 13 | Fixing holder | Ductile Iron | GJS500-7 |
| 14 | Disc Holder | Ductile Iron | GJS500-7 |
| 15 | Seal | Rubber | EPDM |
| 16 | Seal Retainer | Ductile Iron | GJS500-7 |
| 17 | Stem | Stainless Steel | AISI304/316 |
| 18 | Plug | Stainless Steel | AISI304/316 |
| 19 | O-ring | Rubber | NBR |
| 20 | Cap | Ductile Iron | GJS500-7 |
| 21 | Plug | Stainless Steel | AISI304/316 |
| 22 | Screw | Stainless Steel | A2/A4 |
| 23 | O-ring | Rubber | NBR |
| 24 | Screw | Stainless Steel | A2/A4 |