Water ejectors

Baelz-hydrodynamic®

The controllable water ejector combines the functions of four single components: It generates circulation in the area of the consumer, it adjusts the circulation volume according to the actual heat requirement, it regulates the temperature and compensates for fluctuations in differential pressure.

Saving electrical energy through energy-efficient equipment and installations is becoming increasingly important. Where heating water would usually be distributed to secondary circuits using a control valve and a pump for each circuit, Baelz uses controlled ejector technology.

Many of our heating and ventilation systems have been in operation for over 40 years, saving energy and money.

Advantages at a glance
  • Good controllability over the entire load range
  • Just one common main pump supplies all control loops, meaning lower energy costs
  • Simplified system design due to fewer components
  • Less data points in the higher-level control system
  • Lower return temperatures
  • Hydraulic stability

Jetomat® baelz 471

Water/water ejector with red bronze body and 1/2" to 1 1/2" threaded connections, for heating systems.
 

Nominal pressure Nominal diameter Body material Temperature range
PN 16 - 25 G 1/2 - 1 1/2 red bronze (CC491K) up to 150°C

Jetomat® baelz 472

Small controllable water/water ejector with red bronze body and 2" threaded connections, for heating systems.
 

Nominal pressure Nominal diameter Body material Temperature range
PN 16 G 2 red bronze (CC499K) up to 130°C

Jetomat® baelz 475

Economical water/water ejector with red bronze body and 3/4" threaded connections, for heating systems.
 

Nominal pressure Nominal diameter Body material Temperature range
PN 16 - 25 G 3/4 red bronze (CC491K) up to 110°C

Jetomat® baelz 480

Controllable ejector with flanged connections to mix and recirculate liquids.
 

Nominal pressure Nominal diameter Body material Temperature range
PN 16 / 40 DN 15 - 300

spheroidal iron
(5.3103) /

cast steel (1.0619)

-10°C to 240°C
(without cooling tube)

-10°C to 350°C
(with cooling tube)

Operating instructions

Data sheets

Drawings

Jetomat® baelz 480-BK-SS

Controllable ejector with flanged connections, cooling tube and stainless steel bellows, to mix and recirculate liquids. Suitable for applications with thermal oil.
 

Nominal pressure Nominal diameter Body material Temperature range
PN 16 / 40 DN 15 - 300

spheroidal iron
(5.3103) /

cast steel (1.0619)

-10°C to 350°C

The ejector as modular unit

Skillfully designed layout to the latest technical standards, including all necessary measurement points and piping.

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