Ask a questionQuestion?

ᐅ How do you call this fitting/valve/cap used to "shut off" a floor heating loop?

Created on: 24 Jan 2021 18:46
M
Mbk84
Original post
Hello everyone,

I would like to deactivate the underfloor heating loop in the basement hallway for the winter, meaning no water should flow through it. In the long term, using a "clamp" is not an ideal solution 😉 so I would need some kind of "cap" that can be screwed on in a way that the pin is permanently pushed in. How would this be properly done?

Maybe a rather silly question, but I just can’t think of the name or term to search for... 🤨 The thread diameter is about 30mm (1.2 inches), if that’s relevant.



Under the sink: pipes, two shut-off valves, and a measuring device.
D
danixf24 Jan 2021 19:55
#7
Mbk84 schrieb:

There are two circuits controlled by one thermostat, so it’s hard for me to turn it down to zero... Or what do you mean?
While that is generally possible, it definitely isn’t the case here.
nms_hs schrieb:

Our towel radiator has a manual control, I can take a photo 😀 but what are they called 🤨
Manual valve or not?
Mbk8424 Jan 2021 20:18
#8
nms_hs schrieb:

If there was an electric actuator on it --> should it be powered off?
Yes, there was of course one on it before. I always thought that when unpowered, they are "open," meaning the water would flow fully?! Is that actually not the case? If so, my question is obviously doubly silly 😱
danixf schrieb:

That is basically possible, but definitely not the case here.
Hmm, why do you think so? There are definitely 2 actuators controlled by the same thermostat 🙄
D
danixf24 Jan 2021 20:34
#9
Mbk84 schrieb:

Hmm, why do you think that? Definitely, two actuators are controlled by the same thermostat 🙄
Where is the second actuator? One seems to have been replaced by a clamp..
rick201824 Jan 2021 20:35
#10
Check the actuator’s user manual. Most of them are normally closed without power, so just screw it on without connecting it.
tomtom7924 Jan 2021 20:52
#11
There is a square on the nipple that you can turn. However, remember the number of turns, as this actually represents the settings for the hydraulic balancing.
K1300S24 Jan 2021 20:54
#12
There are different types, but in my opinion, nowadays normally open valves without power are more common than normally closed ones without power. This also makes sense because, with a properly adjusted heating system, they should always be open.