Products
Use：
For steam working pressure of the device P = 3.92MPA; T ≤ 450oC's, power station boiler, to prevent the medium pressure boiler exceeds the allowable value, in order to ensure the safe operation of the boiler.
The main safety valve safety valve A49Y-10 DN25 supporting installation A49Y-10 DN150 impulse.
Performance Specifications：
| Nominal pressureMpa | Nominal DiameterDN | Test pressureMpa | Maximum working pressureMpa | Maximum working temperature0C | |
| Strength | Seal | ||||
| 10.0 | 150 | 15.0 | 4.0 | 4.0 | ≤450 |
Main parts and materials：
1.The main valve
| NO. | Part name | Material |
| 1 | Body | Carbon steel |
| 2 | Seat | Carbon steel+Cobalt-based alloy |
| 3 | Valve | Carbon steel+Cobalt-based alloy |
| 4 | Stem | Nitriding steels |
| 5 | Bonnet | Carbon steel |
| 6 | Piston | Stainless steel |
| No. | Part name | Material |
| 1 | Body | Carbon steel |
| 2 | Bonnet | Carbon steel |
| 3 | Valve | Stainless steel+Cobalt-based alloy |
| 4 | Stem | Stainless steel |
| 5 | Guide sleeve | Stainless steel |
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