Häny ZMP 900 pump

Häny supplies triplex piston pumps for large volumes. A triplex pump has three piston pumps and gives an almost constant delivery with minimal pulsation – Häny states less than 1% pulsation in the flow. The valves on the pressure side are hydraulically controlled, which minimises pulsation and pressure surges. The pumps are built for high reliability and low maintenance, with good access to the wear parts, and have a cooling water connection for continuous operation at high ambient temperature.

The triplex pumps are used as conveying, grouting and slurry pumps: for diaphragm wall suspensions, large-volume backfilling, soil stabilisation (deep soil mixing), TBM backfilling and conveying material over long distances, rock support, cement filling in mine rehabilitation and as drainage and slurry pumps in tunnels. Together, Häny's grouting and conveying pumps cover pressures from 1 to 100 bar and flows up to 1000 l/min.

The current model in the triplex series is the ZMP 936, which delivers up to 1000 l/min (60 m³/h) at 40 bar with a hydraulic motor power of 121 kW. It is supplied with PLC control with touchscreen and input keys, automatic pressure and flow control, remote maintenance and an optional data logger for pressure and flow. The ZMP 936 is not the same as the ZMP 900, and model-specific data for the ZMP 900 should be confirmed with the manufacturer.