The latest from G-R’s air driven diaphragm range. In their basic form these have ‘plug and play’ ability (all that is required is a supply of good quality compressed air). The pumps have the facility to vary the stroke rate, discharge stroke time duration and both suction and discharge pressures (independently). This is achieved very easily with manual controls on the standard model. More sophisticated controls can be supplied to allow automatic / remote operation linked into systems such as SCADA commonly used by Water Companies.