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zone valves

robert borders
robert borders Member Posts: 48
in Thermostats and Controls
where can i get some uponor zone valves one inch and 1 1/4 inch sweat? with a solenoid type 24 volt operator like you see on manifolds only larger and for one zone each. or recommendation of another type. seams that honeywell or white rogers, etc with the bigger heads dont last all that long.



i have a radiant floor system my new home and never any problems with the zone valves on a manifold!



thanks



Bob from Bob's heating

march 31, 2010

Comments

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Which operator?

    Heat motor or MZV?



    Got any preferences as t pertains to Cv?





    ME

    There was an error rendering this rich post.

  • robert borders
    robert borders Member Posts: 48
    zone valves

    looking for some valves with as big a CV as possible to feed 1 1/4 inch zone about 14 gallons per minute @ 175,000 BTU one zone, in preferable a MZV



    any help appreciated!



    thanks



    Bob Borders
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,858
    Bummer...

    I am not familiar with any valves that large that use the Synchron motor for powering the valve open and closed.



    Best suggestion I can make for a valve of that size is White Rodgers. It has a large flow rate Cv of 42.2 GPM to create 1 PSI of pressure drop.



    The only thing I don't like about them is that they are power open and power close. They may make a 2 wire configuration.



    http://www.emersonclimate.com/en-US/products/valves/Documents/Cat_06_pg0134.pdf



    Good luck with your project.



    ME

    There was an error rendering this rich post.

  • zacmobile
    zacmobile Member Posts: 211
    edited April 2010
    big heat motor zone valves

    Try HeatLink, I've used them quite a bit, they operate with the same heat motor principle as the Uponor motors and are very reliable, I have only ever replaced 2 motors in 12 years and it wasn't the motor part that was burnt out it was the end switch.



    http://www.heatlink.com/en/product/heatlink-heating/62030/1-14-straight-zone-valve
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