LMI MultiFunction Valve | 150 PSI

LMI MultiFunction Valve Assemblies are highly recommended optional safety and performance enhancing discharge valves for LMI pumps. Many LMI pumps come equipped with these valves, but they can also be easily retrofitted on most pump models with 900, 800, 400 and 300 Series liquid ends. The functions are:

1. Anti-Siphon - The discharge flow path goes through a port that only open on the discharge stroke of the pump. This prevents the discharge line from siphoning liquid from the supply tank in most applications

2. Back Pressure - The diaphragm that controls anti-siphoning creates approximately 20 PSI back pressure on the pump's discharge check valve which improves performance.

3. Pressure Relief - A second diaphragm protects the pump from over pressure by releasing fluid to a relief port in the event of discharge line pressure in excess of 150 PSI.
   

4. Burp - This function makes it easy and safe to depressurize the discharge line without loosening tubing or fittings.

5. Prime - Turn the black knob to divert flow thru the return line back to the storage tank.

6. Drain - Turn both knobs to open the discharge line of the pump, leaving it open to atmosphere.