Intended for use in small cylinder filling applications as a bypass and primer valve for turbine style dispensing pumps. These bypass valves feature a special "check ball" mechanism that helps eliminate vapor from liquid while keeping the pump flooded and properly primed.

Specifically designed for plant systems where maximum bypass flow is necessary to protect the pump from rapid pressure changes or over pressurization. Perfectly suited for 4” base mount pumps or larger pump applications.  

These bypass valves are specifically designed to protect truck and plant pumps from damage due to excessive pressure. They feature wide open flow channels with an orifice weep hole chamber to prevent the valve from slamming open/closed. The weep hole chamber also helps prevent valve seat chatter by allowing constant pressure communication between both the upstream and downstream side of the seat.

Versa-Fill bypass valves are designed to protect pumps from damage due to excessive pressure while providing flow, adjustability, versatility and performance of the pumping system.

 Versa-Fill has three settings and functions: normal bypass, auxiliary suction evacuation/self-load and small cylinder/forklift-filling.

Marshall Excelsior liquid service valves are direct operated relief valves for use on relief and backpressure applications involving large LPG pumping systems and vaporizers.