Thread: Air Bag manual solenoid valve control questions

if your valves are any good you can omit your check valves as the valves will seal and return to the closed postion. Isolating the bags anyway

I would personally simplify the entire setup by usng 2 3 port 3 position valves as opposed to the combinations of multiple 2 port dual position valves you have and a pressure regulator on the supply line.


The line from the control valve I would also fit with a dump protection valve or ball cock valve and then T in a schreader valve. If you fit a dump protection valve you have to fit a restriction to the exhaust port of the control valve.

The simplest setup assuming you dont need to chang pressure on the fly is to use a schreader valve and leave it.

my favorite setup however is a pair of pressure regulators a pair of pressure gauges and a ball control valve. to use it simply open the ball valves (one per bag) adjust the presure untill you get the ride positon you want and the pressuge gauge is stable and then close the valve. Most pressure regulators have a dump port in them so if the output pressue is over set pressure the exess is bled off. If you're sneaky (and have good enough on board air) you can use this to aid in limiting the rebound of the airsprings by fitting a pressure reducing valve on the dump port of the regulator (which will also prevet you from dropping the presure in the bag to 0 via the regulator)



to adjust, open the

Hi Dave,

Thanks for the reply, I have a few flow control valves that I can use for dump protection/speed control. I also like the schrader valve and isolater in case it all goes pear shaped.

I was originally going to use 3 port valves, but they are the "spool/shuttle" type and don't like water/oil. I've got my hands on the diaphragm type which seem to deal with pretty much anything. (Sorry about the drawing, it shows the "spool/shuttle" type, couldn't find the diaphragm type in the sketch program I used).

Cheers,

Tim

From a schematics point of view its irrelvent what the valve is physcially just its function.

you can get a "schreader coupling" which externally looks like a fairly normal screw together coupling but when you seperate it one side is a normal schreader fitting. In a pinch I'v been known to make them up out of valve extensions by brazing a connector on.

From a schematics point of view its irrelvent what the valve is physcially just its function. you can bet nested diaprhagm and solenoid reed valves that can be ganged up to replicate more complicated valves but unless I need the extra complexity I prefer KISS and in this case it means minimising the number of joints connections and vlaves

on that note

you can get a "schreader coupling" which externally looks like a fairly normal screw together coupling but when you seperate it one side is a normal schreader fitting. In a pinch I'v been known to make them up out of valve extensions by brazing a connector on.