For use in heating, air conditioning and industrial systems
- Automatic speed control (proportional pressure, constant volume) or fixed speed steps (constant pressure) adjustable by rotary knob
- Integrated night setback
- Bleed screw
- Manual start-up aid
- Pre-assembled 1 m connection cable
- No external motor protection required
- Without thermal insulation shell
- Delivery without screw connection
Technical data:
- Operating voltage: 230 V, 50 Hz
- Protection class: IP42
- Temperature range: +2°C...+110°C
- Max. operating pressure: 10 bar
- Pump housing material: KTL-coated grey cast iron, corrosion-resistant
Available variants
Technical details per variant
15-4.0 — Ref. 90 028 90
- Energy Efficiency Index (EEI): 0.17
- Power [W]: 4...20
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 15 (1/2")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 15-4.0
- External thread: DN 25 (1")
- Connection: External thread
15-6.0 — Ref. 90 028 91
- Energy Efficiency Index (EEI): 0.18
- Power [W]: 5...37
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 15 (1/2")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 15-6.0
- External thread: DN 25 (1")
- Connection: External thread
15-8.0 — Ref. 90 028 92
- Energy Efficiency Index (EEI): 0.2
- Power [W]: 6…64
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 15 (1/2")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 15-8.0
- External thread: DN 25 (1")
- Connection: External thread
25-4.0 — Ref. 90 028 96
- Energy Efficiency Index (EEI): 0.17
- Power [W]: 4...20
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 25 (1")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 25-4.0
- External thread: DN 40 (1 1/2")
- Connection: External thread
25-6.0 — Ref. 90 028 97
- Energy Efficiency Index (EEI): 0.18
- Power [W]: 5...37
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 25 (1")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 25-6.0
- Male thread: DN 40 (1 1/2")
- Connection: Male thread
25-8.0 — Ref. 90 028 98
- Energy Efficiency Index (EEI): 0.2
- Power [W]: 6…64
- Installation length [mm]: 130
- Protection class (IP): IP42
- Pressure class: PN 10
- Nominal diameter: DN 25 (1")
- Housing material: Cast iron
- Max. fluid temperature (continuous operation) [°C]: 110
- Type: 25-8.0
- External thread: DN 40 (1 1/2")
- Connection: External thread
Datasheets
