Normet TP4 SS is a high pressure, high volume airless pump with a fixed ratio of 1:1 for automatic mixing systems. It is used in the construction and mining industry for the injection of polyurethane and is especially suited for high volume water control, void filling and deep injection applications. The TP4 SS incorporates a flush pump and flush pump feed line to the mixing head allowing for fast and efficient cleaning of the mixing head between breaks in the injection sequence.