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Four Function Valve (4FV)

  - Data Sheet
- Manual

This compact and economical valve performs four important functions for your LMI pump: Diaphragm type anti-syphon protection, Back pressure, Priming aid/line drain, Pressure Relief.

Priming with the 4FV is simple and is achieved by a turn of the pressure relief knob. We highly recommend this accessory for every LMI electronic pump.