Primary Shut Off - Grade 250 MS to 150 CFM
The Primary Shut Off (PSO) stops the airflow to the pump when the liquid level inside the tank reaches a certain height.
A 75mm nitrile rubber ball is captive inside the PSO, it is this ball that prevents contamination reaching the pump.
The PSO is to be used in conjunction with the Secondary Shut Off.
| DESCRIPTION |
PART NO. |
| 50mm Primary Shut Off |
VTPSO 50mm |