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Star S 21 FX, 3-Speed Cast Iron Star Series Circulator, 1/12 HP
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MANUALS (4)
Product Highlights
Description
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
- Automatically Vented
Materials:
- Pump housing: Grey cast iron (EN-GJL200)
- Impeller: Engineered Composite (PP - 40% GF)
- Shaft: Stainless steel (Cr)
- Bearing: Metal-impregnated carbon
Specs
| Application: | Heating |
|---|---|
| Material: | Cast Iron |
| Horse Power: | 1/12 |
| Voltage: | 115V |
| Phase: | 1 |
| Hertz: | 60 |
| Temperature Range (F): | 14°F - 230°F |
| Max Pressure (PSI): | 140 |
| Max Head (Ft): | 21 |
| Max Flow (GPM): | 19 |
| Connection Type: | Flange Rotated 90 Deg |
| Connection Size: | 1-1/4" 3/4" 1" 1-1/2" |
| Max. Amps: | 0.92 |
| Max. RPM: | 2700 |
| Type: | 3-Speed Pump |
Questions?
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Product Reviews
Most Liked Positive Review
installed it myself
Most Liked Negative Review
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Bottom line is, they fail...... consistently!
Great pump.
Fast shipping
Good price on hard to find pump.
This was at least $50.00 cheaper here than any other place.
Excellent service!
Great price, Just what I needed
Solid, affordable pump
Perfect
Worked perfectly
Good Poump Fast Shiping
Product Q&A
15 QuestionsQ: Do you sell replacement gaskets for the Star series circulators?
Asked by Justin 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffThe star series uses part 2705014.
Q: Does this product include gaskets? If sold separately, what keywords to use and look for, for example, size or shape, thickness, etc...
Asked by Deedee 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, the pump includes a pair of flange gaskets.
Q: Do they offer a replacement Impeller? And if so what is the part number and where can I get one?
Asked by Chris 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffUnfortunately Wilo does not offer replacement parts for their smaller pumps such as this.
Q: How to check this pump to know if this is running, it is so quiet and cannot judge if this is running or not. I dont feel that its running?
Asked by Mo 11 years ago
Add your answer
Verified Reply- Supplyhouse Staffmechanics stethoscope or pressure gauges if they were installed.
If the pipes get hot and your house heats up, pump is running or use amprobe to check current.
Q: How many amps are used for each of the three speeds? Can the pump be used continuously 24 hours a day for 365 days?
Asked by JP 12 years ago
Add your answer
Sorry I just saw this message. Anyway, the unit uses 98 watts on speed 3, 77 watts on speed 2, and 55 watts on speed 1. Also, the pump is rated for continual use, so yes, you can run it 24/7.
Q: Need to know the which end is the in & out on the star 21 fx model.
Asked by DJ 13 years ago
Add your answer
The end closest to the red knob is the inlet
If you look closley.usually on the housing of the pump u will fimd an arrow for direction of flow.
The pump should have an indicator arrow on it, but if not the water comes in the top & out the bottom.
Hi DJ, This circulator (and most others) have a directional "arrow" cast into the iron body which helps the installer know which is the inlet and which is the outlet port.
The way the pump is pictured, with the WILO at the bottom on the front label, the inlet is on the bottom.
The way the pump is pictured, with the WILO at the bottom on the front label, the inlet is on the bottom.
The IN flange will feed water to the CENTER of the impeller The OUT flange will take water from the outer edge or circumference of the impeller. So with the pump standing on one end, the label facing you and the black electric box on the left, (as pictured in pex supply) then OUT flange would be on top.
Q: will this hook up to 1" flange
Asked by Krutch 13 years ago
Add your answer
yes
Yes it will.
Excellent products for hot water systems, you can buy the connections that will mate to anything you want to do. I have several of these working in systems now
yes
Yes it will, sorry for just now replying been away from computer
Q: What is the distance between the flanges on this pump?
Asked by Patty Mayonaisse 14 years ago
Add your answer
Verified Reply- PexSupply StaffThe distance between flanges is 6-3/8".
Six and three-eighths inches
Q: where is pump manufactured
Asked by rg 14 years ago
Add your answer
Verified Reply- PexSupply StaffIt is made in France.
This pump is made in France.
Wilo is a German company. Since 2009 at least some of their pumps are made in the USA. I have 4 of their circulator pumps. Three of them are older than 2009. The other is installed in such a tight place that I cannot see if it says "Made in USA". I wish I could provide a better answer.. Sorry.
Q: What is the distance between the flanges on this pump?
Asked by Patty Mayonaisse 14 years ago
Add your answer
Not sure what you mean by "distance". The flange and the pump "mate" together with only a gasket between them.
Patty, I happen to own three of these pumps. The distance between the flanges is 6 and 3/8 inches.
Note sure what the process is to answer a question, but I get 6 3/8" at the widest points on the flanges of one sample. The gaskets supplied fit within the flange and project out another 1/8" or so, on each end - this would require an opening of 6 5/8", or slightly more, to fit the pump between flat pipe flanges.
pump is 6 and 3/8 \from flange to flange