Ask The Trades - Which type of zone valve ?

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Ask The Trades › DIY Forum › Plumbing Questions › Which type of zone valve ?

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Which type of zone valve ? (Read 2601 times)

molerat GDPR opt-out	Which type of zone valve ? Mar 24^th, 2005, 12:35am My 20 year old Sunvic zone valves are dieing of old age so am about to replace them. Which type are best for reliability and total lifespan, the rotating valve type as in Sunvic etc or the ball type like Honeywell, or are they much the same ?
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PEDANTICVINDICTIVEMAN Trade Member Offline Cant talk,old folks to rip off and tanks to pee in Posts: 846 Total Thanks: 0 For This Post: 0 Gender: Trade: Not Specified	Re: Which type of zone valve ? Reply #1 - Mar 24^th, 2005, 7:03am The rubber ball type are best in my opinion, but you may find your Sunvics need power to close whereas ball types are shut manually by a spring, so you may find it dificult to sort out on the wiring front
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molerat GDPR opt-out Total Thanks: 0 For This Post: 0	Re: Which type of zone valve ? Reply #2 - Mar 24^th, 2005, 8:36am Thanks for your opinion. My old ones are spring return so no problems there.
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billythekid Trade Member Offline I love YaBB 1G - SP1! Posts: 3402 Total Thanks: 0 For This Post: 0 Trade: Plumber	Re: Which type of zone valve ? Reply #3 - Mar 24^th, 2005, 12:45pm I agree with PVM, in my opinion can't beat the Honeywell stuff. Easy to replace parts on too when the motor gives up. btk
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Re: Which type of zone valve ?
Reply #4 - Mar 30^th, 2005, 1:13am

Sunvic make two types.

One which needs power to hold it open, as others do, & uses a spring to close when the power is turned off. TTo operate this, you only need a programmer/thermostat with a normally open contact.

The other only uses power when it opens or closes; it does not use energy to hold it open. Needs a changeover contact to operate.

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Ask The Trades › DIY Forum › Plumbing Questions › Which type of zone valve ?