Designed for use with hydronic heating systems, the Watts 3/4 in. Cast-Brass FPT x FPT Hydronic 2-Way Flow Check Valve provides a positive shut-off when the circulator (not included) is not running to help prevent water from flowing to radiation units (not included). It is easily opened for gravity circulation. The valve offers easy installation and can be used in residential and commercial applications.
Made from cast brass
Use in commercial or residential hydronic heating systems (not included)
Provides a positive-gravity shut-off when the circulator (not included) is not running
Helps prevent the flow of water to radiation units (not included)
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Inlet Diameter (In.)
Outlet Diameter (In.)
Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Width (in.)
Compatible Pipe Material
FIP x FIP
Maximum Pressure (psi)
Maximum Working Temperature (F)
Product Weight (lb.)
Warranty / Certifications
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.
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out of 4 reviews
50% recommend this product
Showing 1-4 of 4 reviews
Mar 6, 2021
Returned was too expensive found cheaper elsewhere...
Returned was too expensive found cheaper elsewhere
Feb 17, 2021
Worked fine. Three installed to restore proper zone circulation....
Worked fine. Three installed to restore proper zone circulation.
Jun 8, 2020
how stupid the add is
who writes up this add???? oviously not someone knowledgeeable on plumbing. WOWW IS THE HOMEOWNER GOING TO H/D TOBUY. ITS A ONE WALVE WHICH CAN BE USED IN VERTCAL?HORIZONTAL POSITION
Jan 25, 2018
The valves work great, but I have had to replace the internal bobbit a couple of times. About ev...
The valves work great, but I have had to replace the internal bobbit a couple of times. About every 5 to 6 years, the valve starts to "gravity feed" - which means that the bobbit is not making a good seal on the valve seat. The repair kit is tough to find, and it costs about $75. It is cheaper to purchase a new valve, and just take the bobbit out of that one. I am a bit disappointed with Watts.