The priming aid is a transparent, air-tight collector with a screw cap on top. It is mounted between the tank and the pump. The inlet from the tank and the outlet to the pump are both in the bottom of the collector. The priming aid is supplied with a bracket for wall mounting and a rod for mounting on top of the tank.

The priming aid has following functions:

1. Priming. To facilitate priming in case of frequent stops and/or high suction lifts by eliminating or reducing the dry-suction phase.

2. Gas trap. Gas occurring in the suction line is trapped in the top of the priming aid to prevent it from entering the pump head.

3. Pulsation dampening. The dampening gas cushion in the top of the prim-ing aid reduces pressure surges, resulting in opti-mum dosing accuracy and reduced risk of cavita-tion.