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English  |
| Quantity: | |
|---|---|
ST-PQ0005-FQ
SHSUOTE
848190
1.Description.
Single threaded vent valve with universal flange and ball valve is usually used in the pipe at the high point or air tight place, to line up the gas in the pipe to dredge the pipe, so that the pipe in the normal operation.
2.Main parts&material
| No. | PART | MATERIAL | STANDARD |
| 1 | Lower Flange | Ductile Iron | DIN 1693 |
| 2 | Ball Valve | Brass | |
| 3 | Body | Ductile Iron | GB 12672 |
| 4 | 0 Ring | NBR | ISO 4633 |
| 5 | Cotter Pin | A2-7D | ASTMA959 |
| 6 | Sealing Plug | EPDM | ISO 4633 |
| 7 | Exhaust Nut | CuZn39Pb1 | EN 12167 |
| 8 | O Ring | NBR | ISO 4633 |
| 9 | Bonnet | Ductile Iron | DIN 1693 |
| 10 | O Ring | NBR | ISO 4633 |
| 11 | Exhaust Screw Hole Seat | CuZn39Pb1 | EN 12167 |
| 12 | Bolt | A2-70 | ASTMA959 |
| 13 | Washers | A2-71 | ASTMA959 |
| 14 | Nut | A2-72 | ASTMA959 |
| 15 | Small Floating Ball | ABS | GB 12672 |
| 16 | 0 Ring | NBR | ISO 4633 |
3.Features
01. The buoy of the exhaust valve is made of low-density material, which will not be deformed even if soaked in high-temperature water for a long time.No difficulty in buoy movement.
02. The buoy lever is made of hard plastic, and the connection between the lever and the buoy and the support is movable, so it will not rust in the long-term operation, resulting in the failure of the system and water leakage.
03. The sealing end face of the lever is supported by a spring, which can be stretched and stretched with the movement of the lever to ensure the tightness without exhaust.
4.Execution standard
| Design standard | EN1074-4 | |
| Flange connection standard | GB/T17241.6,EN1092-2, ASME B16.1/B16.42,AS4087 | |
| Structural length standard | GB/T12465 | |
| Inspection testing standard | GB/T13927, EN12266-1 | |
5.Technical parameters
| Nominal diameter | DN40~DN300 | |
| 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
When it is necessary to discharge the gas in the pipeline, the air in the pipeline enters the body cavity under the pressure of water and is discharged from the exhaust nozzle. Then, the water in the pipeline fills the body cavity. Under the buoyancy of water, the float ball moves upward to block the exhaust nozzle and achieve self-sealing.The air in the water under the action of the pressure, constantly into the exhaust valve body cavity of the upper, forced under the floating ball, leaving the original sealing position, the air and from the exhaust mouth eduction at this moment, then, the float back to its original position since the seal, therefore, exhaust valve in the normal work of the tire valve end is open, the floating ball constantly repeat the above action, air discharge.When maintenance or cleaning of the body cavity is required, the valve should be closed.
1.Description.
Single threaded vent valve with universal flange and ball valve is usually used in the pipe at the high point or air tight place, to line up the gas in the pipe to dredge the pipe, so that the pipe in the normal operation.
2.Main parts&material
| No. | PART | MATERIAL | STANDARD |
| 1 | Lower Flange | Ductile Iron | DIN 1693 |
| 2 | Ball Valve | Brass | |
| 3 | Body | Ductile Iron | GB 12672 |
| 4 | 0 Ring | NBR | ISO 4633 |
| 5 | Cotter Pin | A2-7D | ASTMA959 |
| 6 | Sealing Plug | EPDM | ISO 4633 |
| 7 | Exhaust Nut | CuZn39Pb1 | EN 12167 |
| 8 | O Ring | NBR | ISO 4633 |
| 9 | Bonnet | Ductile Iron | DIN 1693 |
| 10 | O Ring | NBR | ISO 4633 |
| 11 | Exhaust Screw Hole Seat | CuZn39Pb1 | EN 12167 |
| 12 | Bolt | A2-70 | ASTMA959 |
| 13 | Washers | A2-71 | ASTMA959 |
| 14 | Nut | A2-72 | ASTMA959 |
| 15 | Small Floating Ball | ABS | GB 12672 |
| 16 | 0 Ring | NBR | ISO 4633 |
3.Features
01. The buoy of the exhaust valve is made of low-density material, which will not be deformed even if soaked in high-temperature water for a long time.No difficulty in buoy movement.
02. The buoy lever is made of hard plastic, and the connection between the lever and the buoy and the support is movable, so it will not rust in the long-term operation, resulting in the failure of the system and water leakage.
03. The sealing end face of the lever is supported by a spring, which can be stretched and stretched with the movement of the lever to ensure the tightness without exhaust.
4.Execution standard
| Design standard | EN1074-4 | |
| Flange connection standard | GB/T17241.6,EN1092-2, ASME B16.1/B16.42,AS4087 | |
| Structural length standard | GB/T12465 | |
| Inspection testing standard | GB/T13927, EN12266-1 | |
5.Technical parameters
| Nominal diameter | DN40~DN300 | |
| 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
When it is necessary to discharge the gas in the pipeline, the air in the pipeline enters the body cavity under the pressure of water and is discharged from the exhaust nozzle. Then, the water in the pipeline fills the body cavity. Under the buoyancy of water, the float ball moves upward to block the exhaust nozzle and achieve self-sealing.The air in the water under the action of the pressure, constantly into the exhaust valve body cavity of the upper, forced under the floating ball, leaving the original sealing position, the air and from the exhaust mouth eduction at this moment, then, the float back to its original position since the seal, therefore, exhaust valve in the normal work of the tire valve end is open, the floating ball constantly repeat the above action, air discharge.When maintenance or cleaning of the body cavity is required, the valve should be closed.
