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English  |
| Quantity: | |
|---|---|
ST-PQ0002
SHSUOTE
848190
1.Description.
Flange single-hole exhaust valve is installed in the outlet of the pump or water distribution pipeline, used to eliminate the air accumulated in the pipe, in order to improve the efficiency of the pipeline and water pump, when the tube once produced negative pressure, the valve quickly inhaled the outside air, in order to prevent the damage of the pipeline due to negative pressure.
2.Main parts&material
| No. | Part | Material |
| 1 | Body | Ductile iron |
| 2 | Float | SS304 |
| 3 | Sealing Arc | SS304 |
| 4 | Bolt | SS304 |
| 5 | Bonnet | Ductile iron |
| 6 | Cover | Ductile iron |
| 7 | O-ring | NBR |
| 8 | Seat | EPDM |
| 9 | Nozzle seat | EPDM |
| 10 | Guide Barrel | SS304 |
| 11 | Buffer | EPDM |
3.Features
01.Flow dynamics design, can achieve high speed exhaust, and no gas sealing phenomenon, with trace exhaust function,
02.High sensitivity, can effectively prevent the negative pressure pipeline damage;
03.The float is made of stainless steel, with long service life, high pressure bearing capacity, safety and reliability. It is coated with food grade epoxy resin.
4.Execution standard
| Design standard | CJ/T217 | |
| Flange connection standard | GB/T17241.6 | |
| Structural length standard | GB/T12465 | |
| Inspection testing standard | GB/T13927 | |
5.Technical parameters
| Nominal diameter | DN20~DN50 | |
| Nominal pressure | PN10/PN16 | |
| Operating temperature | 0°C~80°C | |
| Seal test | 1.1PN | |
| Shell test | 1.5PN | |
| Suitable medium | Water | |
| Low pressure seal | 0.02MPa | |
6.Operating principle
Exhaust state, buoy, by gravity pull down one end of the lever, the lever in the tilt state at this moment, in the leverage and vent contact appeared gap, air through the vent through the gap, with the air discharge, water level rise, buoy under the effect of the buoyancy of water float upwards, the lever on the seal face pressure on the porosity, gradually until the vent is completely blocked.The exhaust valve is now completely closed.
1.Description.
Flange single-hole exhaust valve is installed in the outlet of the pump or water distribution pipeline, used to eliminate the air accumulated in the pipe, in order to improve the efficiency of the pipeline and water pump, when the tube once produced negative pressure, the valve quickly inhaled the outside air, in order to prevent the damage of the pipeline due to negative pressure.
2.Main parts&material
| No. | Part | Material |
| 1 | Body | Ductile iron |
| 2 | Float | SS304 |
| 3 | Sealing Arc | SS304 |
| 4 | Bolt | SS304 |
| 5 | Bonnet | Ductile iron |
| 6 | Cover | Ductile iron |
| 7 | O-ring | NBR |
| 8 | Seat | EPDM |
| 9 | Nozzle seat | EPDM |
| 10 | Guide Barrel | SS304 |
| 11 | Buffer | EPDM |
3.Features
01.Flow dynamics design, can achieve high speed exhaust, and no gas sealing phenomenon, with trace exhaust function,
02.High sensitivity, can effectively prevent the negative pressure pipeline damage;
03.The float is made of stainless steel, with long service life, high pressure bearing capacity, safety and reliability. It is coated with food grade epoxy resin.
4.Execution standard
| Design standard | CJ/T217 | |
| Flange connection standard | GB/T17241.6 | |
| Structural length standard | GB/T12465 | |
| Inspection testing standard | GB/T13927 | |
5.Technical parameters
| Nominal diameter | DN20~DN50 | |
| Nominal pressure | PN10/PN16 | |
| Operating temperature | 0°C~80°C | |
| Seal test | 1.1PN | |
| Shell test | 1.5PN | |
| Suitable medium | Water | |
| Low pressure seal | 0.02MPa | |
6.Operating principle
Exhaust state, buoy, by gravity pull down one end of the lever, the lever in the tilt state at this moment, in the leverage and vent contact appeared gap, air through the vent through the gap, with the air discharge, water level rise, buoy under the effect of the buoyancy of water float upwards, the lever on the seal face pressure on the porosity, gradually until the vent is completely blocked.The exhaust valve is now completely closed.
