Data sheet
| Hydraulic data | |
|---|---|
| Maximum inlet pressure p inl | 25 bar |
| Maximum operating pressure PN | 50 bar |
| Min. fluid temperature Tmin | -5 °C |
| Max. fluid temperature Tmax | 90 °C |
| Min. ambient temperature Tmin | -5 °C |
| Max. ambient temperature Tmax | 40 °C |
| Connection type | Flange |
| Pipe connection, suction side DNs | DN 65 |
| Pipe connection, discharge side DNd | DN 50 |
| Motor data | |
|---|---|
| Mains connection | 3~690 V, 50 Hz 3~400 V, 50 Hz |
| Voltage tolerance | ±10 % |
| Rated power P2 | 37 kW |
| Motor efficiency class | IE3 |
| Rated current IN | 67.8 A |
| Rated speed n | 2900 1/min |
| Activation type | Direct On Line (DOL) |
| Power factor cos φ100 | 0.84 |
| Motor efficiency 50% ηM 50% | 92.6 % |
| Motor efficiency 75% ηM 75% | 93.8 % |
| Motor efficiency 100% ηM 100% | 93.8 % |
| Insulation class | F |
| Protection class motor | IP55 |
| Materials | |
|---|---|
| Pump housing | Grey cast iron |
| Impeller | Grey cast iron |
| Shaft | Stainless steel |
| Mechanical seal | U2BPFG |
| Stage chamber material | Ductile cast iron |
Pump curves
Dimensions and dimensions drawings
Zeox FIRST H 3211-37-2
Ordering information
| Product data | |
|---|---|
| Brand | Wilo |
| Product description | Zeox FIRST H 3211-37-2 |
| Article number | 4191775 |
| EAN number | 4048482459950 |
| Colour | Green |
| Minimum order quantity | 1 |
| Date of sales availability | 2014-09-01 |
| Packaging | |
|---|---|
| Packaging type | Box |
| Packaging property | Transport packaging |
| Pieces per pallet | 1 |
| Number per layer | 1 |
| Dimension, weight | |
|---|---|
| Length with packaging | 2300 mm |
| Length L | 2006 mm |
| Height with packaging | 1000 mm |
| Height H | 637 mm |
| Width with packaging | 1000 mm |
| Width W | 860 mm |
| Gross weight, approx. m | 569 kg |
| Net weight, approx. m | 542 kg |
Horizontal, multi-level, highly-efficient and non self-priming high-pressure multistage centrifugal pump with offline connections.
This non self-priming high-pressure multistage centrifugal pump has a compact design and is particularly efficient and user friendly. The standard-mounted IEC standard motor equipped with a PTC sensor, and our proprietary hydraulics ensure extremely high efficiency. It can be equipped with a stuffing box packing upon request, which can be swapped out without dismantling the pump thanks to its exclusive Twinner System packing construction.
Applications
The pump is suitable for use in professional irrigation/agriculture, water supply, pressure boosting, fire fighting and in the area of heating, air conditioning, cooling.
Special features / product benefits
- Extremely efficient hydraulics and highly-efficient motor (≤ 55 kW: IE3, ≥ 75 kW: IE4) with standard-mounted PTC sensor
- Pump set standard mounted with rigid coupling between motor and hydraulics and with mechanical seal
- Standard-mounted bypass flushing device guarantees a long service life for the mechanical seal
- Clever flange positioning and stuffing box gland upon request
- Bronze impellers upon request for high reliability
Scope of delivery
- Pump set for horizontal installation including motor, coupling, baseplate and pump
- Installation and operating instructions
| Materials | |
|---|---|
| Pump housing | Grey cast iron |
| Shaft | Stainless steel |
| Shaft seal | U2BPFG |
| Impeller | Grey cast iron |
| Stage chamber material | Ductile cast iron |
| Operating data | |
|---|---|
| Min. fluid temperature Tmin | -5 °C |
| Max. fluid temperature Tmax | 90 °C |
| Maximum operating pressure p | 63.0 bar |
| Max. ambient temperature Tmax | 40 °C |
| Motor data | |
|---|---|
| Mains connection | 3~690 V, 50 Hz 3~400 V, 50 Hz |
| Shaft power P2(Q=max.) of selected impeller * number of pumps | 37000 W |
| Activation type | Direct On Line (DOL) |
| Rated speed n | 2900 1/min |
| Rated current IN | 67.8 A |
| Protection class motor | IP55 |
| Motor efficiency 50% ηM 50% | 92.6 % |
| Motor efficiency 75% ηM 75% | 93.8 % |
| Motor efficiency 100% ηM 100% | 93.8 % |
| Power factor cos φ100 | 0.84 |
| Installation dimensions | |
|---|---|
| Pipe connection, suction side DNs | DN 65 |
| Pipe connection, discharge side DNd | DN 50 |
| Ordering information | |
|---|---|
| Net weight, approx. m | 542 kg |
| Brand | Wilo |
| Product description | Zeox FIRST H 3211-37-2 |
| Article number | 4191775 |