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Thermostatic Antifreeze Valve
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$94.91 each
In Stock
In Stock
Get 13 Tomorrow, Jun 5
Order by 6PM, receive Tomorrow
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Inlet Size
5/8", 1/4"
Product Highlight: Outlet Size
1/2"
Product Highlight: Pressure Rating
125 psi

Description

The Robertshaw FP-45 Antifreeze Valve uses a reliable, self-contained power element that is sensitive to temperature and operates without electrical power or sensors. In solar applications, the gate of the valve typically opens as temperatures decrease, allowing the liquid to spill and to be replaced by warmer water when the water is near the freezing point in solar panels. When warmer water enters, the gate of the valve is closed and the removal of water is interrupted.


Features:

  • Protect solar collectors and exposed piping from freezing
  • Easily installed on existing systems
  • 125 P.S.I. maximum operating pressure
  • Corrosion resistant
  • Tamper resistant
  • Anti-siphon and alternate discharge port
  • Discharge port for 1/4" plastic pipe or 5/8" I.D. hose
  • 1/2" Brass male pipe thread inlet port for positive seal
  • Nominal start to open water temperature of FP-45 is 43F
  • High temperature U.V. stabilized body material
  • Ideal for back-up freeze protection
  • Actual size is 5" high

Specs

Application:

Solar Panels

Inlet Size:

5/8"

1/4"

Outlet Size:

1/2"

Pressure Rating:

125 psi

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Product Reviews

4.89 out of 9 reviews
100% would recommend this product
4.89
out of 9 Reviews
100% would recommend this product
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Showing 1-9 of 9 reviews

Exactly what I wanted

Gabrielle was very helpful on the phone and the valve arrived quickly. Thank you!
Rob
Orlando, FL
5 months ago
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yes

used to keep a house pipes from freezing, second pair the first set lasted over twenty years with treated well water.
Ron
Old Town FL
3 years ago
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Works

It's what I ordered, came when they said it wood, it installed and works like it supposed to. The price was a couple dollars less than others. Actually come to think of it, Supplyhouse is the only one that had it in stock too.
Dinod
FL
4 years ago
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I will Buy this product again

When it does freeze in the Phoenix area, it works with Domestic solar water Heaters Panels and customers that water lines on a flat roof.
none
Phoenix AZ
4 years ago
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yes

Needed a new thermostatic antifreeze valve and glad I found it. Wasted a lot of water when the other one quite working.
Kim a home owner
Plant City, FL
4 years ago
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Back order was long, but customer service was good

The product was as expected. The item was backordered for several weeks, but when I reached out to customer service they gave me an update. Once shipped I got a notification and it arrived as expected.
Roger
Sarasota, FL
4 years ago
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Perfect Match -- Installed in minutes

It was nice to have a perfect match for a part ... constrained space so any deviations may have been an issue. Reasonable price and shipping was prompt.
Bokonon
Florida
5 years ago
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I would buy this product again

great product.
Eric the Great
33309
6 years ago
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Was exactly what I was looking!

My solar heater work perfect now!
Sarita
Orlando, Florida
6 years ago
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Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping Policy
Easy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
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