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Star E 21 | Wilo
Technical data
Hydraulic data
Maximum operating pressure PN 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) 0.73 psi
Min. inlet pressure 194°F (90°C) 4.10 psi
Min. Inlet Pressure 230°F (110°C) 14.50 psi
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 0.06 hp
Installation dimensions
Pipe connection on the suction side 3/4"-1.5" Two Bolt Flange

Star E 21 Dimension Drawing

Product data
Brand Wilo
Product description Star E 21
Article number 3351731
Minimum order quantity 1
Date of sales availability 2023-09-25
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 3.9 kg

Installation and operating instructions

Star E 21 IOM

Number of pages 10
Language en
PDF (1 MB)

Data sheet

Star E 21 Submittal Sheet

Number of pages 1
Language en
PDF (380 KB)