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1/2" NPT AutoFill Boiler Feed Valve

Brand:
Caleffi
SKU:
553542A
Rating:
(10)
Q&A:
(0)
1/2" NPT AutoFill Boiler Feed Valve
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$88.60 each
In Stock
In Stock
Get 18 Tue, Jun 16
Order by today, receive Tuesday
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Material
Brass
Product Highlight: Max Pressure (PSI)
230 MAX PSI
Product Highlight: Connection Type
MPT x FPT Connection
Product Highlight: Size
1/2"
Product Highlight: Pressure Set Point
15 psi
Product Highlight: Max Temp (F)
150°F Max Temp

Description

The function of the Caleffi 553542A is to automatically fill and regulate the pressure in a hydronic system to a pre-set value. Water flow to the system will automatically stop when the pre-set value is reached and fill up with more water if required.

Specs and Features:
  • 1/2" Male NPT Inlet x 1/2" Female NPT Outlet
  • Brass construction
  • Pressure range 3-60 PSI
  • Factory set at 15 PSI
  • Maximum working temperature 150 F

Specs

Size:

1/2"

Pressure Set Point:

15 psi

Max Pressure (PSI):

230

Max Temp (F):

150°F

Connection Type:

MPT x FPT

Material:

Brass

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Product Reviews

4.3 out of 10 reviews
90% would recommend this product
4.3
out of 10 Reviews
90% would recommend this product
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5 star
60%
4 star
30%
3 star
0%
2 star
0%
1 star
10%
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Most Liked Positive Review

Very accurate, stopped excessive relief valve blow-off

Tried many boiler feeds and this is the only one that stopped relief valve from blowing due to inaccurate feed pressure. Includes internal shutoff valve and pressure gauge port. Gauge was not needed as pressure set calibration is very accurate. The only drawback is that you need a radiator spud wrench to attach fitting to input, which seems weird and unnecessary.
VS

Most Liked Negative Review

Don't buy

Unlike other autofill valves, there is no way to really hold the high pressure end tight to screw a nipple into it. It has a union for easy replacement but that is simply going to turn when you try to screw a nipple into it
Showing 1-10 of 10 reviews

Don't buy

Unlike other autofill valves, there is no way to really hold the high pressure end tight to screw a nipple into it. It has a union for easy replacement but that is simply going to turn when you try to screw a nipple into it
Paul
Colorado mountains
9 months ago
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Exact replacement

Being able to get replacement parts is #1 in servicing equipment. In less than 48hrs. The part arrived and replaced. Great service.
High Pockets
New Lisbon, Wisconsin
2 years ago
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Perfect Reducing Valve

Just changed this valve after 10 yrs of use - otherwise it was working swell all those years. Highly recommend as it is easy to turn the knob on bottom and to me it is the top of the line product.
Erwin
KS
4 years ago
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I would buy again, however it would be the one with a guage.

Used on a home boiler system. Works as advertised. I just thought the dial setting face was a gauge and was not. Installed a gauge and now is perfect.
wolfman
peoria IL
4 years ago
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Very accurate, stopped excessive relief valve blow-off

Tried many boiler feeds and this is the only one that stopped relief valve from blowing due to inaccurate feed pressure. Includes internal shutoff valve and pressure gauge port. Gauge was not needed as pressure set calibration is very accurate. The only drawback is that you need a radiator spud wrench to attach fitting to input, which seems weird and unnecessary.
kwassa
Boston MA
5 years ago
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Reliability and Quality

Well designed, very reliable and high quality. Precise adjustment eliminates problems with pressure balancing. Includes integral stop valve and pressure gauge port. The only caveat is that you will need a spud/radiator wrench to attach to the proprietary input fitting.
kwassa
Boston MA
5 years ago
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It was good product ,good prices, and good service

Home use and you get good price.
Magic Mark
Clare mi
6 years ago
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I would buy this again

The product works as advertised.And the adjustable setting dial makes setting the correct pressure easy.
do57
Berwick,Pa
8 years ago
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great product

easy inline installation easy adjustment worked very well on new multi boiler project
don
kittanning,pa
10 years ago
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Very accurate !

This valve solved a minor problem with my Baxi Boiler. Easy and effecient way to keep the heating system at the reccomended water level.Workes like a charm
Plumbingman
Denver,Co
12 years ago
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