Pressure reduction application from high pressure to low pressure, used for fluids: Saturated steam and gas.
Type: 455
Maximum operating pressure 250 PSIG (17.3 barg)
Minimum inlet pressure 5 PSIG (0.4 barg)
Maximum differential pressure 125 PSI (8.7 barg)
Minimum differential pressure: 20% of inlet pressure
Body material: Brass/Stainless steel, Cast iron
Disc material: Stainless steel
Connection: NPT thread, 125# FLG, 250# FLG
Size: 1/2" - 4"
Structure and Dimensions:
| Size/Connection | Model Code | Body Material | Weight lbs | |
| 1/2” | NPT | 455-12-N-X | Bronze | 15 |
| 3/4” | NPT | 455-13-N-X | Bronze | 15 |
| 1” | NPT | 455-14-N-X | Bronze | 15 |
| 11/4” | NPT | 455-15-N-X | Bronze | 18 |
| 11/2” | NPT | 455-16-N-X | Bronze | 18 |
| 2” | NPT | 455-17-N-X | Cast Iron | 75 |
| 125# FLG | 455-17-F125-X | Cast Iron | 75 | |
| 250# FLG | 455-17-F250-X | Cast Iron | 75 | |
| 21/2” | 125# FLG | 455-18-F125-X | Cast Iron | 105 |
| 250# FLG | 455-18-F250-X | Cast Iron | 105 | |
| 3” | 125# FLG | 455-19-F125-X | Cast Iron | 125 |
| 250# FLG | 455-19-F250-X | Cast Iron | 125 | |
| 4” | 125# FLG | 455-20-F125-X | Cast Iron | 175 |
| 250# FLG | 455-20-F250-X | Cast Iron | 175 | |
Traffic lookup table:
Application installation diagram:
