Lifting station

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Faecal lifting system

Lifting systems are automatically working systems that divert the wastewater that occurs below the backflow level, safely backflow , or pump it to a higher level. If the wastewater cannot be drained off with a gradient, a lifting system is also required; The same applies if rainwater that falls below the backwater level can not seep away .

construction

At the lowest point in the basement, the sewage lifting system is either set up freely or in a pit or housed in a shaft ( pump sump ). The lifting system must drain through a backflow loop (at least 300 millimeters) above the backflow level. Protection against backwater is thus achieved. It pumps wastewater into the public sewer system even in the event of a backwater , and the house drainage system remains fully operational. In the event of a power failure, a hand pump enables disposal, and in the case of large systems, a second pump connected in parallel ensures that one pump fails by starting operation.

Drainage objects above the backflow level must not be drained using a lifting system.

Types of lifting equipment

  • Lifting systems for sewage containing faeces from toilets and urinals, which cause odor nuisance, are equipped with a closed, gas- and watertight container in which the dirty water is collected. Such sewage lifting systems have additional facilities to prevent odor nuisance and to ensure compliance with hygienic standards.
  • Lifting systems for faecal-free water are mostly basement drainage pumps, which are arranged as submersible pumps in an open collecting shaft.

Important DIN standards: DIN EN 12056 basic standard , DIN EN 12050 lifting systems

DIN EN 12050 lifting systems for buildings

Part 1: Sewage lifting plants Part 2: Wastewater lifting plants Part 3: Sewage lifting plants for limited use

DIN EN 12056 gravity drainage systems within buildings

Part 1: General implementation requirements Part 4: Wastewater lifting plants - planning and dimensioning

ÖNORM B2501 Planning and execution of backflow protection

According to B2501, in addition to the classic sewage lifting system, a backwater lifting system is also permitted.

Individual evidence

  1. ↑ Master company for drain and pipe cleaning
  2. ↑ DIN EN 12056 (PDF; 89 kB)
  3. ↑ DIN EN 12050 (PDF; 8.4 MB)

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