Packaged pump station

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A package pumping station provides an efficient and economical way of installing a drainage system.

Manufactured in strong impact resistant polyethylene or GRP Glass-reinforced plastic

Complete with internal pipework normally in uPVC or mild steel pipework pre-assembled ready for installation into the ground, after which the submersible pumps and control equipment are fitted.

All package pumping stations should be supplied with the controls for fully automatic operation, a high-level alarm indication is recommended on the event of pump failure.

Pumps should employ a guide-rail/auto-coupling/pedestal system, which permit easy removal of pumps for maintenance; however a free standing version is available.

1 Applications
2 Options
3 Control
4 See also

[edit] Applications

Mechanical building services collection and pumping of liquids like, surface water, wastewater or sewage from areas where drainage by gravity is not possible.

Basement floors
Underground car parks
Domestic & Commercial Properties
Liftshaft
Rooms and surfaces under backflow level
Hospitals Residential Sub Divisions
Caravan Parks
Service Stations

[edit] Options

To reduce cost and time involved with civil work and site labour, the proposal of having a packaged pump station as a complete package is an attractive alternative to the conventional method of a concrete well and separate pump system.

Comprehensive range of sizes and depths are available and these incorporate, various types of pumps to best suit an application:

Single Submersible pump

Variable sump depths (recommend a further meter below invert pipe), inlet and discharge connection are freely selectable on the chamber for connection of drainage pipes with a single free standing or guide-rail/auto-coupling/pedestal system submersible pump for duty only operation.

Dual Submersible pump

Variable sump depths (recommend a further meter below invert pipe), inlet and discharge connection are freely selectable on the chamber for connection of drainage pipes with two free standing or guide-rail/auto-coupling/pedestal system submersible pumps for duty/standby or duty/assist operation.

[edit] Control

Control panels are engineered for the particular installation. The heart of the control system for submersibles is the liquid level control, which activates and deactivates the pump(s) at specified levels within the wet-well.

The simplest control system would contain an on-off magnetic contactor and disconnect.

Systems normally have three sets of controls::

turn-off of the first pump
turn-on of the pump
high liquid alarm

Twin systems usually alternate pumps on each successive cycle. Twin systems also usually include an override control, which brings in the second pump when in-flow is unusually heavy or in case of failure of the first pump.

Control panels are installed above ground and usually contain:

· pump disconnects

· across-the-line starters with overload protection

· hand-off-automatic selectors

· elapsed time meters

· alarm systems for indicating high level conditions in the wet-well

In addition, twin systems provide for automatic sequencing and alternating of pumps.

Alternation allows for equal run-time and wear of the pumps. Alarm systems vary but can be visual, audible or remote monitoring by telemetry devices or telephone lines.

The manufacturer will help determine what controls are needed for a particular application, and then design the control panel to this specification.