Closed Spring Loaded Low Lift Type Safety Valve
Specifications
Closed Spring Loaded Low Lift Type Safety ValveA41H type are used for equipment and pipeline of the petroleum gas,air,water etc medium what are working temperature are less than 300°C.
A41YP/R type are used for the equipment and pipeline of the quality with corrode medium what the working temperature are less than 200°C.Take for extra pressure devices.
Flange connecting dimensions of comply with standard series first of JB/T-94.
Material for main parts
Name of part |
Material |
Body |
WCB |
Nozzle |
ZG2Cr13/1Cr18Ni9Ti |
Adjusting ring |
ZG2Cr13/1Cr18Ni9Ti |
Disc |
2Cr13/1Cr18Ni9Ti |
Guide sleeve |
ZG2Cr13/1Cr18Ni9Ti |
Bonnet |
ZG230-450 |
Spring |
50CrVA |
Stem |
2Cr13 |
Adjusting bolt |
45 |
Cap |
ZG200-400 |
Sealing surface of material |
Surfacing D507 |

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