The Allerton High Specification Dual Raw Sewage Pump Station

The Allerton High Specification Dual Raw Sewage Pump Station is recommended where gravity flow is not available to the main sewer and for one or more properties. Contact Allerton for sizing information.

Why use our High Specification Pump Station?

• The pump chambers are manufactured from high quality Glass Reinforced Plastic and in accordance with our BS EN ISO9001:2000 quality management system.
• Fully automatic autochangeover control system to ensure equal wear and tear on each pump.
• The Allerton Raw Sewage Pump Station is delivered complete with the pipework, valves and guide rails pre-assembled in the tank, ready for immediate installation into the ground.
• Wide range of diameters and depths of tanks available to satisfy the storage requirements in part H of the Building Regs.
• Low maintenance costs, servicing once a year.
• 1 year warranty on all working parts.
• Custom made sewage pump stations available upon request.
• Pump Station Servicing and Maintenance, Installation and Commissioning service available by our highlytrained engineers.

How our High Specification Pump Station works

See illustration below.¹

1. Galvanised Access Cover
2. GRP Tank
3. Inlet Pipe
4. Level Float Controls
5. Control Panel
6. Galvanised Guide Rail
7. Isolation Valve
8. Non Return Valve
9. Submersible Pumps

As the level of the liquid rises in the chamber the first two level floats, the stop and duty start floats are activated and the duty pump starts and pumps the liquid out of the chamber until the stop float drops and turns the pump off. The level of the liquid will again rise and due to the autochangeover control system the other pump will start. This ensures that the two pumps do an equal amount of work.

If the liquid level reaches the height of the second level float and the pump fails to pump, the level of liquid will continue to rise until the third float is activated and calls the standby pump to start. This pump will then start and pump until the stop float drops. If both pumps fail to pump, the liquid level will rise to the fourth float and the high level alarm will be activated.

¹ Allerton High Spec Dual Raw Sewage Pump Station illustration is not drawn to scale.

Dimensions (mm)