PTC-heated expanding element valve

The Sponge · 15-09-2013 5:28pm #1

I have decided to control my radiators with Merten (Schneider) thermoelectric valve drives and it turns out that I must get new valves.

Spec Sheet
http://www.merten.com/uploads/tx_seqdownload/639125_Stellantrieb_230_GB.pdf

The valves that I need to get are push down type valves as opposed to the twisty valves that I have currently installed on my radiators. Apologies as I am unsure of what the actual technical term is for them.

I have asked my local plumbing wholesaler (Heat Merchants) for assistance and he was very unsure.

Based on the valve adapters that I have to get I can choose from the following manufacters:
Honeywell+Braukmann
Reich
Landis+Gyr
MNG
Cazzagniga
Danfoss RA
Heimeier
Herb
Onda
Schlosser

Any guidance at all is appreciated

corkgsxr · 15-09-2013 6:30pm

Theres thermostatic valves which are a stand alone valve. They have a expanding liquid that reacts to heat

And the type you have in the pdf which are electric controlled normally by a wall stat.
You normally would buy head and valve together.

Different brands would have different fitments

The Sponge · 15-09-2013 7:24pm

I am using a KNX wall state with digital control. This is controlling an actuator back at the panel that is wired to the rad.
http://www.global-download.schneider-electric.com/852575A6007E5FD3/all/AA51FF1ACD6E04AE852576EE006AA1AF/$File/h503727.pdf

Now I need to find the right valve that this thermoelectric Valve drive is compatible with? Nightmare.

This brief schematic I got with the valve drive dictates what the valve looks like that I need to get!
https://dl.dropboxusercontent.com/u/59059084/IMG_3228.jpg

Any suggestions?

PTC-heated expanding element valve

Comments