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1/2" Two-Way Sweat Zone Valve Reviews

4.8 Rating 64 Reviews
So far so good (i.e., works, no leaks). I installed 3 of these about a week ago for my radiant floor heating system. I figured that I would change the remaining 3 of 4 after the first one leaked and was replaced by a service and another one started leaking months later. Because I didn't want to unsolder the old valve to replace it, I removed the parts (spring, solenoid, control body) from the new valve and installed them in the body/shell of the original valve. Warning - it takes extensive force to compress the spring when re-installing the screws of the control section, so I recommend that a second person assist you. Also, I received a price-difference refund when I saw a lower price for the same valve on a competitor's website the next day, even after I had placed the order!
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Posted 1 month ago
Though I needed just the top part, I found the price so good I replaced the whole unit. When I told them that another seller had a few dollars less, They matched the price. It has been working perfectly, so far! Pex shipped quickly once I reminded them that it should have been shipped a day earlier as they had promised me at the time of the sale. Wonderful people to work with and I certainly would buy it again from them.
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Posted 1 month ago
Product used on both hot and chilled water systems. Reliable valves and power heads. Have hundreds of them in the facility and only rarely replace the valves and the easy twist-off power heads occasionally.
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Posted 1 month ago
Had this same valve go bad (stuck shut), it was 30 years old. I ordered this from Pex and installed it and now back up and heat is running again. Got the best price for this zone valve because Pex did a price match and gave me an extra $5.00 off...Good for me!!
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Posted 1 month ago
Very easy to use, wire and install. Does what it says. Thanks Pax and TACO.
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Posted 1 month ago
These valves are sturdy and simple to replace the power head.
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Posted 1 month ago
Christopher W
Verified Reviewer
As part of a preventive maintenance project I used two of these to replace the two existing Taco zone valves, of the exact same type, that were installed thirty-one years ago. The bodies are rugged so if the power heads should ever need to be replaced (and I've done only one in those thirty-one years) then it takes only about five minutes to twist it onto its retaining pegs and then to reconnect the three wires. Simple.
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Posted 1 month ago
In all fairness, I changed out my valve control to Taco ZVC403 and my 1st. Flr. W-R valve was not compatible. But this 573 zone valve works great.
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Posted 1 month ago