4" male X female check valve. Used to permit flow in designated direction only and to prevent backflow. Regularly furnished: 4" forged body with spring-loaded check, body tapered ½"/1.3cm NPT at inlet for ball drip.
| Make | Potter Roemer |
|---|---|
| Manufacturer | Potter Roemer |
| Model code | 4520 |
| Inlet Size (in.) | 4.0 |
| Thread Type | NPT |
| Additional info |
4" male X female check valve. Used to permit flow in designated direction only and to prevent backflow. Regularly furnished: 4" forged body with spring-loaded check, body tapered ½"/1.3cm NPT at inlet for ball drip. |