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RE: multi-zone central heating
- Subject: RE: multi-zone central heating
- From: "Neil Ball" <neilball@xxxxxxxxxxxxxxx>
- Date: Thu, 20 Jan 2005 19:51:06 -0000
These type of actuators are commonly found on underfloor heating manifolds.
They do take a while to open & close which is not a problem with UFH
due to
it's relatively slow thermal response. Biggest benefit is ease of wiring
and
low cost compared to motor-based actuators. If you are thinking of using
them on radiator TRV valve bodies just make sure you get the right torque
rating as too high a closing force will damage the soft valve seats very
quickly and stop the valve from shutting off.
Neil B.
-----Original Message-----
From: William Sadler [mailto:ukhad@xxxxxxx]
Sent: Thursday, January 20, 2005 17:43
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] multi-zone central heating
On the same theme, has any body used these: Thermo-Hydraulic
Actuators?
<http://www.danfoss-randall.co.uk/Site/downloads/VDSAP112.pdf>
Which from the online page can be used to replace thermostatic
radiator valve heads and controlled electrically with 230 or 24
volts.
William.
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