I.S. EN 12056-4:2000

Foreword
1 Scope
2 Normative references
3 Definitions, symbols, units and designation
   3.1 Definitions
        3.1.1 Wastewater lifting plant
        3.1.2 Backflow
        3.1.3 Flood level
        3.1.4 Backflow loop
        3.1.5 Duty flow, V[p]
        3.1.6 Discharge head, H[p]
        3.1.7 Collection tank for wastewater
               containing faecal matter
        3.1.8 Useful volume
   3.2 Symbols
4 Protection against backflow
5 Installation
   5.1 General requirements
   5.2 Pipework
   5.3 Ventilation
   5.4 Drains
   5.5 Electrical connections
6 Selection of wastewater lifting plants
   6.1 Determination of flow, Q[p]
   6.2 Determination of head, H[p]
        6.2.1 Calculation procedure for head, H[p]
        6.2.2 Static head, H[geo]
        6.2.3 Losses in valves and fittings, H[V,A]
        6.2.4 Friction losses in discharge pipework,
               H[V,R]
   6.3 Determination of useful volume, V
7 Commissioning
8 Inspection and maintenance
   8.1 Inspection
   8.2 Maintenance
   8.3 Maintenance contract
Annex A (informative)
Bibliography

Provides layout, operation and maintenance requirements for lifting plants for wastewater containing faecal matter, faecal-free wastewater and rainwater within buildings and sites, together with their discharge pipework and connection to drain.