For use in heating, air conditioning, industrial and potable water systems
- Automatic speed control (proportional pressure, constant flow) or fixed speeds (constant pressure) adjustable by rotary knob
- Integrated night setback
- Bleed screw
- Manual start-up aid
- Pre-assembled screw-on elbow connector
- External motor protection not required
- With digital display of current pump power
- With connection plug
- Delivery without screw connection
Technical specifications:
- Operating voltage: 230 V, 50 Hz
- Protection class: IP42
- Temperature range: +2°C...+110°C
- Max. operating pressure: 10 bar
- Pump body material: Stainless steel 1.4308
- Installation length: 150 mm (without thermal insulation shell)
Available variants
Technical details by variant
20-4.0 — Ref. 90 029 54
- Energy Efficiency Index (EEI): 0.17
- Electrical connection: Plug connector
- Power [W]: 4…20
- Installation length [mm]: 150
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 20 (3/4")
- Body material: Stainless steel
- Maximum fluid temperature (continuous operation) [°C]: 110
- Frequency: 50/60 Hz
- Supply voltage: 1 x 230 V
- Type: 20-4.0
- External thread: DN 32 (1 1/4")
- Nominal diameter: DN 20
- Connection: External thread
20-6.0 — Ref. 90 029 55
- Energy Efficiency Index (EEI): 0.18
- Electrical connection: Plug connector
- Power [W]: 5…37
- Installation length [mm]: 150
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 20 (3/4")
- Body material: Stainless steel
- Max. fluid temperature (continuous operation) [°C]: 110
- Frequency: 50/60 Hz
- Supply voltage: 1 x 230 V
- Type: 20-6.0
- External thread: DN 32 (1 1/4")
- Nominal diameter: DN 20
- Connection: External thread
Technical data sheets
