PAH 80 High Pressure Tap Water Pump, Technical Water,Axial Piston. Danfoss PAH high-pressure pumps are designed for tap water. PAH pumps are developed for various applications such as water hydraulic and dust suppression. Lubrication of the moving parts is provided by the water itself. The PAH pumps are the lightest and most compact pumps in the industry and can be installed horizontally and vertically. The pumps offer service intervals up to 8,000 hours.