The GR series grinder pumps are used in sewage stations and for servicing individual, or groups of, houses where drainage by gravity is not possible. They are ideally suited to applications where effluent is required to be pumped over a long distance, through a small bore pipe. A special cutting device achieves up to 69,000 cuts per minute, pulverising sewage, soft solids and shreddable fibres.
The high heads produced, with only limited horsepower motors, also make them suitable for agricultural disposal systems that feed sprinklers. In industrial applications they are used for pumping fibrous material. A float switch is fitted as standard on single-phase models.
The 420 stainless steel shaft has a double mechanical seal (in an oil chamber). They are available free-standing or for guide rail mounting when supplied with the auto-coupling accessory.