If any of your who have been contemplating autoblast gates for your DC system, are interested, here is an alternative to the pneumatic actuated blast gates I am building. The following is a link to a pdf file with detailed drawings, instructions, and parts lists.
Damper-style DC Autogate
This blast gate is operated with an electric solenoid only and doesn't require shop air to function like mine. It is certainly are an alternative, but I have a few problems with the design as I stated this thread on the TWW forum.
Damper-style DC Autogate
This blast gate is operated with an electric solenoid only and doesn't require shop air to function like mine. It is certainly are an alternative, but I have a few problems with the design as I stated this thread on the TWW forum.