These safety valves are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425℃ and with WC6 Material type are less than 500℃ and WC9 Material Type are less than 550℃.
A48SB High Temperature and High Pressure Safety Valve Material
NO |
Parts |
Cast Steell Material |
WC6 Material |
WC9 Material |
1 |
Body |
WCB |
ZG1Cr5Mo |
ZG15Cr1MoV |
2 |
Seat |
2Cr13 |
1Cr18Ni9Ti |
12Cr1MoVA |
3 |
Adjusting Ring |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
4 |
Disc |
2Cr13 |
17-4PH |
17-4PH |
5 |
Guiding Sleeve |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
6 |
Heat Radiator |
ZG230-450 |
ZG230-450 |
ZG230-450 |
7 |
Bonnet |
ZG230-450 |
ZG230-450 |
ZG230-450 |
8 |
Spring |
50CrVA |
50CrVA |
50CrVA |