Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP Zoom

Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP

SKU:4105032

Brand: Wilo

Wilo
Qty Price
$75.95
/ each
$218.85 / box (3 units x $72.95)
In Stock! Ships in 24-48 Hours
(3 Available)
0

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Specs

Application: Heating
Material: Cast Iron
Horse Power:
?
1/12
Voltage:
?
115v
Phase: 1
Hertz: 60
Temperature Range (F): 14°-230°F
Max Pressure (PSI): 140
Max Flow (GPM): 19
Max Head (Ft): 21
Connection Type: Flanged
Connection Size: 3/4"
1"
1-1/2"
1-1/4"
Max. Amps: 0.66
Max. RPM: 2700
Type: 3-Speed Pump

Description for Wilo 4105032

Overview:
Wet rotor circulation pump, with flanged connection. (Flange perpendicular to shaft). Pre-selectable speeds to adjust the capacity on "S" versions. Cast iron body for hot-water heating systems of all kinds, industrial circulation systems, cold-water systems and air-conditioning systems.

Features:

  • Suitable for any installation position with horizontal shaft; terminal box in 3-6-9-12 o'clock position
  • Three pre-selectable speed stages for load adjustment ("S" type only)
  • Impedance protected motor, motor protection not required
  • Cable entry both sides of terminal box
  • Quick connection spring clips for simple electrical connection
  • Steel Terminal Box
  • Fits all Competitor's Models
  • Powerful Starting Torque
  • Ultra Quiet
  • Reliable Wet Rotor Technology
  • Optional Check Flange Set
  • Automatically Vented


Materials:
  • Pump housing: Grey cast iron (EN-GJL200)
  • Impeller: Engineered Composite (PP - 40% GF)
  • Shaft: Stainless steel (Cr)
  • Bearing: Metal-impregnated carbon

Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP

REVIEW SNAPSHOT®

by PowerReviews
WiloStar S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP
 
5.0

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

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Reviewed by 2 customers

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5.0

Best pump for the price

By Dan the HandyMan

from Webster ma

Verified Buyer

Comments about Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP:

I like the fact you have speed options, it was plenty powerful for my application.

 
5.0

Quiet and powerful pump

By Bruce

from Rocky Mountains

Verified Buyer

Comments about Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP:

My customer is stuck, for now, with 3/4" supply and return lines for an indirect water heater. This pump, when set on "High", puts out just enough to avoid short cycling of customers 140,000 BTU boiler. It is very quiet and puts out way more than the Grundfos Alpha 15-55F that was installed when I arrived. The Wilo can be wired from either side of the electric box, and it has quick connect wire connections inside the box.

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2 Questions | 2 Answers
Displaying questions 1-2
  • Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP

    Q:

    What is the difference between S21F and s21FX
    Asked on 2/21/2012 by Anonymous

    1 answer

    • CUSTOMER CARE

      A:

      The S21FX is a rotated-flange version of the same circulator. Its flange connections are rotated 90 degrees.

      Answered on 2/21/2012 by PexSupply Staff from NY
  • Star S 21F, 3-Speed Cast Iron Star Series Circulator, 1/12 HP

    Q:

    WHATS THE R PM & WILL THIS UNIT INTER CHANGE WITH A TACO 00700 SAME DIA SAME FLANGES?????
    Asked on 3/2/2011 by buster from hampshire ill

    1 answer

    • CUSTOMER CARE

      A:

      It is 3250 RPM. You can use the Taco flanges.

      Answered on 3/4/2011 by PexSupply Staff from NY
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