The hand diaphragm primer contains a rubber diaphragm working in an aluminum chamber. The diaphragm is actuated by a levered handle attached to it by a connecting rod. Air is drawn into the chamber through a suction valve on the upstroke and discharged through a discharge valve on the down-stroke.
Lightweight and durable solid-cast aluminum body.
Reinforced diaphragms are long-lasting.
Steel mounting bracket allows for easy and dependable installation.
Fulcrum bracket can be adjusted at various angles for your convenience.
DP Series Diaphragm Hand Primers Installation and Operation Directions
Attach mounting bracket to centrifugal pump or skid
Connect primer suction inlet to priming port on the centrifugal pump with hose or flexible tubing. Be sure all connections are air tight.
Fulcrum bracket on the DP9 may be adjusted for ease of operation.
If primer is connected to pump discharge, a cutoff valve should be installed in the priming line. This valve should be closed immediately after priming to prevent the pump from discharging through the primer.
If primer is connected to pump suction, cut-off valve is not required.
A check valve must be used on the pump discharge to prevent air from being drawn into the pump from the discharge line while priming.
All primers are equipped with a drain cock installed in the suction chamber for draining excess water after each use. Drain cock must always be closed when primer is in use.