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Polish pump and pumping stations factory
Small pumping stations, small water treatment, house hold pumping stations

Household pumping stations

Intend of household pumping stations

Selection and application

Przepompownie dla domków jednorodzinnych

Household sewage pumping stations of the METALCHEM-WARSZAWA type, abbreviated to PDM, are intended for the discharge of domestic and sewage, drainage or rainwater from individual residential buildings, utility buildings or small housing associations. They are mainly used to service farms lying far away from the main sewage network or places preventing the use of gravitational drain. PDM is divided into one and two pump systems built in Ø800mm and Ø1000mm tanks. PDM can also be used as drainage for garages, properties or as temporary pumping stations. Lightweight and compact design, allows quick installation on the construction site and does not require special effort or machinery (cranes, excavators). Two or three people are enough to move depending on the size of the tank.

Due to small inflows of sewage, designers often choose systems with thin pressure pipes, guided by the theoretical parameters of the pumping station operation. This involves the use of pumps with small passages and generating high pressure. The pumping stations designed in this way are characterized by really low efficiency and high operating costs. Pumps with small passages and / or shredding equipment often get clogged. The consequences of this are downtime (failures) of the pumping station, significant costs of servicing pumps and cleaning the pumping station by specialized units. Therefore we reccomended small pumping stations with pipes no smaller than Dn50 inside and outside of the tank.

Czekamy na Ciebie od poniedziałku do piątku w godz. 7-15

In the pumping stations we offer, we use internal pipeline diameters not less than Dn50 and the outlet from the PE63 pumping station or larger. We also prefer pumps with 50mm free passage under the impeller. The only justified case of using pumps with a grinder and a small outlet is a pumping station intended only for a single house (family). This is connected with taking responsibility for the garbage thrown into the sewage system. For two or more users, it is usually difficult to determine who is guilty of throwing rubbish into the sewage system, and the costs involved can be significant.

In our pumping stations we use two pump fastening systems: on the hook coupling and on the Dn50 autocoupling elbow. Both systems allow easy removal of the pump in case of failure and flooding of the pumping station. The KS50 coupling elbow and two guides are particularly recommended because even with a completely flooded pumping station, it is very easy to remove and lower the pump (for example during service).

Typical equipment and parameters of PDM

Parameters & Construction

Household pumping station, One family pumping station, one building pumping station, small settle pumping stations
Slurry disposal system

Typical PDM equipment:

  1. Tank made of PEHD (polyethylene) or KBZ (concrete rings),
  2. Pump - one or two with possible configuration: 
    1. single or three phase,
    2. with free passage or with a grinding device, 
  3. Gate valve and ball valve Dn50,
  4. Inlet connector from PVC110 to PVC200,
  5. Control:
    1. a float built into the pump (in one one-phase pump),
    2. supply and control switchgear cooperating with independent swimmers.

 

Basic PDM parameters:

  • Tank made of polyethylene with diameter Ø800 or Ø1000 and height from 1.8m to 4.5m,
  • Pump lifting height from 8 to 70m for 100l/min. ,
  • Diameter of the DN50 fitting + flushing attachment with fireman's attachment,
  • Pump power up to 0.75kW up to 4.0kW,230V or 400V supply voltage,
  • Lowering and removing pumps without going down to the tank,
  • When pulling out the pump, the ball check valve prevents backflow of sewage,
  • The ball valves can be closed without entering the tank.

 

Sanitary and industrial sewage

Catalogue Card


|Metalchem-Warszawa Spółka Akcyjna|Adress: Studzienna 7a st., 01-259 Warsaw, mazowieckie dist., Poland|NIP 527-020-40-40|BDO 000029119|
|Contact: phone +48 228371270|email: metalchem@metalchemsa.pl|www.metalchemsa.pl|
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