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Product use
1. This valve is suitable for water and hot water pipes with temperature not exceeding 100 ℃, so that the air in the pipe can be completely discharged.
2. When installing double port exhaust valve, a protective valve and ball valve must be installed at the bottom to avoid water cut-off during inspection.
technical parameter
Valve body and cover | Cast iron, stainless steel, carbon steel | Test items | |
Floating ball | 304 stainless steel, exhaust port, steel H59 brass | working pressure | 1.0MPa |
seal ring | Nitrile rubber | Sealing pressure | 1.1MPa |
elasticity filature | A3 | Strength pressure | 1.5MPa |
QB1 single port exhaust valve drawing
Screw thread dimensions
Nominal diameter | ZG | Φ | H |
15 | 1/22” | 135 | 205 |
20 | 3/4” | 135 | 205 |
25 | 1” | 135 | 205 |
40 | 11/2” | 150 | 205 |
50 | 2” | 150 | 205 |
Flange dimensions
Nominal diameter | D | D1 | D2 | Φ | H |
15 | 95 | 65 | 45 | 135 | 210 |
20 | 105 | 75 | 55 | 135 | 210 |
25 | 115 | 85 | 65 | 135 | 210 |
40 | 140 | 115 | 80 | 150 | 210 |
150 | 160 | 125 | 100 | 150 | 210 |