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Biodiesel => Biodiesel equipment => Topic started by: Julian on July 19, 2015, 09:02:46 PM

Title: Automated valves
Post by: Julian on July 19, 2015, 09:02:46 PM

I know the subject has been discussed several times but I haven't seen anyone produce one yet.

I just came across this on Thingiverse ... http://www.thingiverse.com/thing:932431/#instructions

I know it probably won't take the sort of temperatures we use, but I'm sure the design could be adapted.

(http://thingiverse-production-new.s3.amazonaws.com/renders/dc/81/8e/e4/cb/20150620_143307_preview_featured.jpg)

Title: Re: Automated valves
Post by: oakwoodtv on July 19, 2015, 09:11:43 PM

A standard 1/4 turn ball valve could be adapted with gear quadrant and worm
and two micro switches for travel limit. 

Title: Re: Automated valves
Post by: kamaangir on July 19, 2015, 09:59:40 PM

I swa the ac bloke at work messing about with something similar, might get the worn one off him for experimentation.

Title: Re: Automated valves
Post by: Tony on July 20, 2015, 02:40:40 PM

Quote from: oakwoodtv on July 19, 2015, 09:11:43 PM

A standard 1/4 turn ball valve could be adapted with gear quadrant and worm
and two micro switches for travel limit.

I like that idea, possibly could do away with the microswitches if you can detect the stall current (like car windows do).

Title: Re: Automated valves
Post by: therecklessengineer on July 20, 2015, 05:48:23 PM

Quote from: Tony on July 20, 2015, 02:40:40 PM

Quote from: oakwoodtv on July 19, 2015, 09:11:43 PM

A standard 1/4 turn ball valve could be adapted with gear quadrant and worm
and two micro switches for travel limit.

I like that idea, possibly could do away with the microswitches if you can detect the stall current (like car windows do).

I always intended to use an electric mechanism from a car door lock on a ball valve. No need to detect current then, just pulse in one direction or the other.