American Lube – 635040 Aro-Stop® Shut-Off Valves Are Designed To Prevent Pump “Runaway”. Pump Runaway Occurs When The Material Container Is Depleted, Causing The Pump To Cycle Fast And Needlessly. The Aro-Stop® Valve Protects The Pump By Shutting Off The Air Supply When The Material Container Is Empty Or A Fluid Line On The Outlet Side Of The Pump Is Broken. Use With Oil Or Grease Pumps.
- Aro-Stop Valve For 2″ &Amp; 3″ Thunder Pumps, Series 200 Pumps &Amp; 1/2″ Diaphragm Pumpsshuts Off Air To Pump When Material Container Is Empty Or Fluid Line Is Broken, Air Inlet And Outlet 1/4″(F). Includes Connecting Hose.
