European Style Regulator DIY ?

[RobC]

It was brought up a few weeks back about sourcing the European style draft regulators ( Barometric Damper ). Hannson was good to connect us to a source. I didn't follow up on it because 1) cost & distance 2) had a feeling that it was not going to be an exact fit etc.
So, as my busy season comes to an end I was going to try to build one from scratch.
1) I noticed they have some gasket material on the lip of the opening. I have extra tubing from a manometer that seem to be silicon-ish material and I have some EDPM roofing.
Any thought on these or a better product that readily available to make a seal for the door ?
2) Ideas for an actuator for damper door to keep it closed while not in use ? Again, readily available parts, Grainger or Surplus Center. I'm not sure that I will need one but figured that if others wanted to DIY, the ideas would be in one topic.
Any other input welcome.
Rob.

 

[pybyr]

I've been trying to puzzle this one out, but no breakthrough ideas yet.

For an actuator to close the damper when not in use, the idea of a solenoid/ electromagnet coil pulling in (or letting go) a steel or iron piece seems appealing- fewer moving parts than a motor-type actuator.

Interested in any others' ideas

 

[pybyr]

This one looks like the cat's meow to me; Alas, it is apparently the equivalent of $200 for the basic item before cross-ocean shipping costs....

wish I had the fabrication equipment and experience to replicate it:

http://www.tigerholm.com/en/hvac/Draught-stabiliser-Tigex50.htm

 

[pybyr]

BTW, it is not clear to me whether the Tigex even has gasketing on the door. I think that a well fitted door on that design would be relatively close to being sealed (or a whole lot closer than the US baro dampers) even without gasketing.

 

[Willman]

Available thru Westwood in USA. Didn't check pricing.