Marsh Horizontal Sewage Pumping Station - 16,000 Litres
Marsh Horizontal Sewage Pumping Station - 16,000 Litres
Description
Pump chambers for larger housing projects, and commercial/industrial developments.
The Marsh range of vertical pump chambers incorporates systems for pumping surface water or domestic sewage to mains, septic/sewage treatment plant effluent to drainage fields/watercourses, and bespoke systems for larger domestic and industrial applications.
When discharge to mains is required, but to do so by gravity is impractical, a pump chamber system will be needed. Although available as floor-mounted units for indoor applications such as basements, the vast majority are installed outdoors at levels to suit on-site conditions and topography.
Guidance notes:
Where foul water drainage from a domestic property is to be pumped to the mains the effluent receiving chamber should be sized to contain 24-hour inflow to allow for disruption in service, the minimum daily discharge being taken as 150 litres per person per day.
- For other building types the capacity of the receiving chamber should be based on the calculated daily demand of the water intake for the building, or when only a proportion of the foul sewage is to be pumped then the capacity should be based pro-rata
Each pump chamber contains a number of float switches linked to a control panel that automatically controls flow and levels.
In a single pump chamber there are three float switches:
Float A: Actuates the pump cycle until level drops to low level.
Float B: Low level float stops the pump.
Float C: High level alarm – positioned above the pump actuator float (min 100mm).
For twin pump chamber operation there is an additional float switch (Float D) – usually positioned 150mm above first actuator (A) – which actuates the second pump in periods of higher flow.
After each cycle the pumps alternate to extend pump life and are designed to run for a minimum of 60 seconds with no more than 15 starts per hour.
KEY
1 Inlet
2 Submersible pump
3 Pump guide rails/pedestal
4 Pump retrieval chains
6 Isolation valve
7 Outlet
8 Access cover
Benefits
- Designed to BSEN12050 for structural strength and water-tightness and to BSEN752 to comply with hydrostatic and electrical requirements
- Smooth internal walls and integral pump well improves pump efficiency and eliminates ‘dead spots’ which can lead to odours and septicity
- Pre-assembled pipework for fully automatic operation (pump/control equipment separate)
- Heavy duty (industrial) ‘peardrop’ floats and Lowara (Xylem) pumps throughout ensure robust, reliable design and maximum efficiency of pump with minimal clogging or wear
- Unique ‘keying-in’ lip to assist anchoring into concrete surround
- High level alarm as standard
- Variable invert depths and orientations to suit individual site conditions
Specification
Model | Length +/-50mm |
Width +/-50mm |
Height +/-50mm |
Inlet invert | Inlet dia | Outlet invert | Outlet dia | Total storage |
---|---|---|---|---|---|---|---|---|
AT2800 | 3000 | 1250 | 1750 | 800 | 110 | 300 | 63 | 2800L |
AT3800 | 4000 | 1250 | 1750 | 800 | 110 | 300 | 63 | 3800L |
AT4500 | 2650 | 1600 | 2100 | 800 | 110 | 300 | 63 | 4500L |
AT6000 | 2950 | 1900 | 2400 | 800 | 160 | 300 | 63 | 6000L |
AT8000 | 3640 | 1900 | 2400 | 800 | 160 | 300 | 63 | 8000L |
AT10000 | 4200 | 1900 | 2400 | 800 | 160 | 300 | 63 | 10000L |
AT12000 | 5200 | 1900 | 2400 | 800 | 160 | 300 | 63 | 12000L |
AT14000 | 5840 | 1900 | 2400 | 800 | 160 | 300 | 63 | 14000L |
AT16000 | 6700 | 1900 | 2400 | 800 | 160 | 300 | 63 | 16000L |
AT18000 | 7500 | 1900 | 2400 | 800 | 160 | 300 | 63 | 18000L |
AT20000 | 8100 | 1900 | 2400 | 800 | 160 | 300 | 63 | 20000L |