I finally got the last of the stuff I needed to test out my cannons. I had ordered 2 Palmers inline stabilzers during a sale last month. I Put a 200PSI gage on one and cobbled together all the parts for the complete system as it would go in the ship. It pegged the gages needle when I opened the tank valve. I cranked the adjusting screw all the way out. When I opened the valve again the pressure snapped to 80PSI then continue to slowly rise toward 200. I shut it down and switched regulators. This one held the set pressure and I was able to blow many lovely holes throught a peice of 2 inch foam at 90PSI. Obviously the first regulator is faulty. I may have to send it for repairs. Not a big deal. Unfortunately it has made me a bit nervous about the regulator failing and putting 800 PSI on my 250 PSI hoses. Is there some kind of light weight pressure relief valve that I shoud be using. Rather than send it back is there any field maintenance I could do to get the regulator working?
trust me on this... send it back. Last time mine started doing that it took palmers two tries to get it right. It is not worth dinkin with... One thing you may want to do, though, is put a anti-siphon tube in your co2 tanks and mark which side is up, as there is a chance the problem comes from liquid co2 reaching the valve. As an aside, I now wear hearing protection when working with these adjustable regulators while inside... last time mine went south, it popped some lines and my ears were ringing for more than a day...
There is a pressure relief valve, but it will take up a small amount of space. I'll need to see if I can find the link again.
I'm using HPA with a myth regulator to get the inlet pressure to the Palmer down to 800 PSI. Actually, after I was done testing the cannon I messed around with the bad regulator some more. I thought there might just be some crud in the valve that I could blow out. I let the pressure get a little high and blew out the brass bladder on the pressure gage. That made a bit of a bang. It may also have had something to do with me asking about the pressure relief valve. Terry
The smallest ones I have seen are about 1.5 inches long and .5 inch in diameter. You see them on air compressors all the time. I have room for that if there isn't something better, and I can find out where to buy one in the 150-200 PSI range. Terry
Look on McMaster-Carr you can ger them there. Whats wrong with letting the hose bursting be the pressure relief mechanism, its a pretty standard practice. Its cheap,light quick to replace, and everyone has it. Why HPA? What format are you building to again?
Have you got a part number? The only ones I found were huge and expensive. I can't believe they would put a $100 relief valve on a $200 compressor. Well, I had a gage blow out before the tubing did. Plus I have this fear that a hose blow might put a BIG Hole in the hull. Easy to fill, no freeze-ups, zero carbon foot print. I'm seriously wondering how long we will be able to buy CO2 for non-esential uses. Big Gun - Kruzer P, 2 Tripple 7/32" arizona guns, and dual single shot Torpedos under WWCC rules.
I finally did find them on McMasters&Carr. You just have to now what to search for. They are called pop-safety valves. From the lack of intrest It may be I'm the only one that sees a need for it. For less than $10 each it's worth it to save my nerves. Thanks for the lead Snipehunter
