
Star E 21
Wet rotor circulator
Data sheet
| Hydraulic data | |
|---|---|
| Maximum operating pressure | 145 psi |
| Min. fluid temperature Tmin | 36 °F |
| Max. fluid temperature Tmax | 230 °F |
| Min. ambient temperature Tmin | 32 °F |
| Max. ambient temperature Tmax | 104 °F |
| CEI | 0.41 |
| Min. Inlet Pressure 185°F (85°C) | 0.72 psi |
| Min. inlet pressure 194°F (90°C) | 4.10 psi |
| Min. Inlet Pressure 230°F (110°C) | 14.50 psi |
| Materials | |
|---|---|
| Bearing | Ceramic |
| Pump housing material | Cast Iron HT200 |
| Impeller | PA66-GF30 |
| Shaft | Ceramic |
| Motor housing | Cast Aluminum ALSI9CU3 |
| Motor data | |
|---|---|
| Mains connection | 1~115 V, 60 Hz |
| Rated current IN | 0.67 A |
| FLA min. Imin | 0.08 A |
| FLA max. Imax | 0.60 A |
| Power consumption P1 max | 0.06 hp |
| Power consumption P1(Q=max.) of selected impeller * number of pumps P1 | 0.059999999999992 hp |
| Installation dimensions | |
|---|---|
| Pipe connection, suction side | 0.75"-1.5" Two Bolt Flange |
Pump curves
Dimensions and dimensions drawings
Star E 21 Dimension Drawing

Ordering information
| Product data | |
|---|---|
| Brand | Wilo |
| Product description | Star E 21 |
| Article number | 3351731 |
| EAN number | |
| Minimum order quantity | 1 |
| Date of sales availability | 2023-09-25 |
| Packaging | |
|---|---|
| Packaging property | Sales packaging |
| Packaging type | Cardboard box |
| Pieces per pallet | 120 |
| Dimension, weight | |
|---|---|
| Length with packaging | 8.75 in (") |
| Length with packaging | 222.25 mm |
| Length L | 7.26 in (") |
| Length L | 184.4 mm |
| Height with packaging | 8.75 in (") |
| Height with packaging | 222.25 mm |
| Height H | 5.97 in (") |
| Height H | 151.6 mm |
| Width with packaging | 6.75 in (") |
| Width with packaging | 171.45 mm |
| Width W | 6.38 in (") |
| Width W | 162.05 mm |
| Net weight, approx. m | 8.50 lb |
| Net weight, approx. m | 3.8 kg |