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1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (NPT x NPT)
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$197.48 each
In Stock
Get 36 Tomorrow, Jun 19
Order by 6PM, receive Tomorrow
MANUALS (5)
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Product Highlights
–
1/2"
Brass
175 MAX PSI
NPT x NPT Connection
150°F Max Temp
Description
–
573 AutoFill Combo
- Pre-adjustable automatic filling valve with backflow preventer and pressure gauge.
- Brass body.
- Max. inlet pressure: 175 psi.
- Max. working temperature: 150°F.
- Setting pressure range: 3-60 psi.
- Preset outlet pressure: 15 psi.
Specs
–
| Size: | 1/2" |
|---|---|
| Connection Type: | NPT x NPT |
| Max Temp (F): | 150°F |
| Max Pressure (PSI): | 175 |
| Material: | Brass |
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Compare Similar Products
Brand
Size
Connection Type
Max Temp (F)
Max Pressure (PSI)
Material
CURRENT ITEM
1/2"
NPT x NPT
150°F
175
Brass
You May Also Need
1 Replacement Part
Replacement Backflow Gasket
SKU: R0001622
CaleffiNeed help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
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Product Reviews
4.7 out of 10 reviews
90% would recommend this product
5 star
90%
4 star
0%
3 star
0%
2 star
10%
1 star
0%
Customer Images
Most Liked Positive Review
Great assembly, well made, and easy install
I really liked how this product incorporated the backflow preventer and pressure regulator. The gauge down stream of the regulator is a nice touch. You dont have to use it (there is a plug that is pre-installed in the port where gauge would go). I installed it on 1/2" copper make-up water supply line to my heating water boiler. I measured, and cut the copper, sweated on 1/2 MNPT fittings to the copper, then screwed each section of this assembly into place. The unions and spin fittings made installation and orientation a breeze. For the vent line, i used a PVC 1/2 MNPT to 3/4" FNPT adapter, and then installed one of those pre-made safety relief valve PVC drain lines that people use for their relief valve on domestic water heater. Made for a very nice installation. Easy to adjust the pressure as well via the dial on the top. I would highly recommend utilizing this product!
VS
Most Liked Negative Review
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Backflow preventer failed after 3 years
Chicago city water, backflow unit froze and failed 3 years from install, ran system dry leading to rotor lock on pump. Disappointed, should have been maintenance free. Replacement features new design.
Showing 1-10 of 10 reviews
Great product!
The description and installation instructions were perfect. This eliminates the need for me to manually maintain the water pressure to the boiler for my radiators in our 1915 Dutch Colonial home. After setting the proper pressure, the automatic water fill made bleeding each radiator a breeze. I needed to install this in the optional vertical orientation.
Installation and functions work perfectly 👌
Ja k of all trades, master of none!
Kansas City
7 months ago
Verified Buyer
Was this review helpful to you?
This seems to be a good product, would buy again if needed
Used it on a Goe Thermal HVAC system to inject a small amount of water into the loop system due to a small leak in the ground piping and to prevent water from being able to inter house water.
Mickey
Foley, Al.
3 years ago
Verified Buyer
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great purchase
used in radiant heat to keep water full at the right pressure
winchline
West Virginia
3 years ago
Verified Buyer
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3 birds with 1 stone solution
Great product. Great quality.
Has the backflow preventer included.
Has the gauge on it to confirm pressure is correct in the system.
My new go to valve for boiler jobs.
Houptee
Monmouth Beach NJ
3 years ago
Verified Buyer
Was this review helpful to you?
Great assembly, well made, and easy install
I really liked how this product incorporated the backflow preventer and pressure regulator. The gauge down stream of the regulator is a nice touch. You dont have to use it (there is a plug that is pre-installed in the port where gauge would go). I installed it on 1/2" copper make-up water supply line to my heating water boiler. I measured, and cut the copper, sweated on 1/2 MNPT fittings to the copper, then screwed each section of this assembly into place. The unions and spin fittings made installation and orientation a breeze. For the vent line, i used a PVC 1/2 MNPT to 3/4" FNPT adapter, and then installed one of those pre-made safety relief valve PVC drain lines that people use for their relief valve on domestic water heater. Made for a very nice installation. Easy to adjust the pressure as well via the dial on the top. I would highly recommend utilizing this product!
Mike
Philadelphia, PA
3 years ago
Verified Buyer
Was this review helpful to you?
I like the Califfe product line!!
Very easy to install excellent quality easy to adjust and the pressure gauge is a nice feature to have another pressure reference
Racinpilot
Willshire, Ohio
5 years ago
Verified Buyer
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nice fittings. Easy to install. Works just like advertised
Needed an auto fill for my hydronic system. I have been periodically adding water but also get air int he system when filling that way. I had a little trouble finding a place for it on my hydronic panel. Need a better means of attachment tot he panel (wall). I managed to rig something up-likely only temporary until I find a better way to attach. I was not sure I really needed the back flow preventer but installed it-the weight of the back flow part complicated the installation. Everything looking good now-fingers crossed.
Richard
Kansas City Missouri
6 years ago
Verified Buyer
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Backflow preventer failed after 3 years
Chicago city water, backflow unit froze and failed 3 years from install, ran system dry leading to rotor lock on pump. Disappointed, should have been maintenance free. Replacement features new design.
Kevin
Chicago
7 years ago
Was this review helpful to you?
product meets my need - fast delivery
Thanks, your rapid delivery and reasonable prices are very helpful. Keep up the good work.
thanks again.
skip
tn
9 years ago
Verified Buyer
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Great Product
Works great, easy installation and adjustable for filling a hydronic heating system and maintaining a constant make -up water pressure.
CZ
NJ
11 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: Does this have a built in STRAINER like the other Caleffi ones that come without the pressure gauge?
Asked by remixme 5 years ago
Add your answer
Verified Reply- SupplyHouseHi! The 573 series comes with the strainer.
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