Water treatment

The condensate return flow system by JUMAG helps pump the condensate back into the feed water container even from remote locations. It combines the benefits of a JUMAG feed water container, the JUMAG control system and tried-and-tested pump technology.

The advantages for you

  • The JUMAG condensate collection vessel is made of rust-free V4A stainless steel (1.4571).
  • The condensate is introduced below the water surface. This allows the condensate in the vessel to maintain its temperature.
  • Quiet operation as patented JUMAG silencers minimise the sound pressure.
  • The relaxation steams are mostly bound.
  • The fresh water may be added to the condensate collection vessel, and the energy of possible relaxation steams can be used for pre-heating of the fresh water and pre-degassing.
  • Insulated vessel, resulting in minimal energy loss
  • The vessel is available in different heights - the pump unit can be placed below or next to the vessel.

How it works

Condensate cannot always be routed directly into the feed water tank with a natural drop – for example in long, branched condensate pipes or with level steam systems that are operated at low pressure.

The JUMAG condensate return system (condensate lifting unit) collects the condensate at a low point and pumps it into the feed water container of the steam boiler. The condensate return system consists of a depressurised vessel, which can ideally buffer 20-30 minutes of the maximum condensate formation, and two redundant, high-quality circulation pumps that can be serviced simply and independently of one another.

The pump unit is installed ready for connection on a console and can be installed below or next to the condensate collection vessel depending on spatial situation. Alternatively, the pump unit is also available with a single pump.

The control is exceptionally powerful:

  • The control notices a pump failure independently and will automatically activate the other pump. A fault message is optionally displayed on the boiler control.
  • Connection to building control centres is possible optionally.

Do you have questions?

Your JUMAG team is happy to assist you!

About us

For more than 40 years, we have been developing, producing and selling oil and gas-fired steam boilers.

JUMAG steam systems represent efficiency and user-friendliness.


Jumag Dampferzeuger GmbH
Badener Str. 8a
69493 Hirschberg

+49 6201 84603-0



We are happy to advise you