Small QEV Type Valves
Yes, it's another one of these "would people buy valves" topics. But this time it's for 3/4" ported all steel piston valves. I don't have any pics yet, but they will be coming soon. The piston will be solid steel with an O-ring (maybe two) and neoprene bolted to the front. It will look like just a 3/4" steel T with a threaded plug at the end from the side. These would be perfect for exhausting 2 1/2" piston valves or bigger. They are most likely going to be under $20. I could also make them out of PVC for an even cheaper price. They should be able to hold at least 400 psi (I have no idea where to get that kind of pressure except for a paintball tank or a scuba tank).
You'll buy me a coffin? I'll hold you to that when I die. 
I feel perfectly safe taking steel pipe fittings to a pressure as high as I can get it. They're over 1/4" thich, they're galvanized stainless, that's safe enough for me. I'm fine with making valves under $20 that can hold an bunch, works for me. If you don't feel safe with that kind of thing, it's not going to put me off of them. It's ALL steel, including the piston, which is completely solid steel with a rubber washer on the front.
I feel perfectly safe taking steel pipe fittings to a pressure as high as I can get it. They're over 1/4" thich, they're galvanized stainless, that's safe enough for me. I'm fine with making valves under $20 that can hold an bunch, works for me. If you don't feel safe with that kind of thing, it's not going to put me off of them. It's ALL steel, including the piston, which is completely solid steel with a rubber washer on the front.
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Animal81182
- Private 4
- Posts: 81
- Joined: Wed Sep 07, 2005 7:48 am
- Location: Uk
Over in the UK the steel pipe we get is rated to 200 - 300Bar - and thats using compression fittings - i have never come across anything that would be able to generate those pressures to fill it to the max!!!
Animal @ http://www.EuroSpudGun.com
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$20 is not really a bad price at all; its a little bit more expensive than the detrol QEV's from mcmaster.com, but its rated to a higher pressure and may have slightly better performance.
Anyways, make sure to post pictures as soon as you get them!
Anyways, make sure to post pictures as soon as you get them!
I can't get a video, but I'm working on the valves currently. Anyone know how to cut 7/8" steel bar stock? The only electric tools I have are a drill and a sawzall. The sawzall might work but cutting the bar would dull the blade sooooo fast. There is a guy I could call who owns a machine shop though.... I get to use steel and stuff there for free because the owner thinks the stuff I do with it is awesome. 8)
And another thing, all the valves will have 1/4" female threads for blowgun or ball valve exhaust, you can always change it if you want.
The only electric tools I have are a drill and a sawzall. The sawzall might work but cutting the bar would dull the blade sooooo fast. There is a guy I could call who owns a machine shop though.... I get to use steel and stuff there for free because the owner thinks the stuff I do with it is awesome. 8) And another thing, all the valves will have 1/4" female threads for blowgun or ball valve exhaust, you can always change it if you want.
It's still homemade, just not every piece. I can't make a 3/4" galvanized steel T either, does that count it out of homemade? 
Spudstuff, I get it from Ace Hardware, I'm not sure if they can cut it. I just had kind of a "confrontation" with some seriously insane (I seriously think he was INSANE, he had that kind of crazy pop-eyed demented kind of look) Ace employee who told me to "get the f*ck out of the store." "He knows what I'm up to (absolutely nothing)." "He's seen me around almost every day wandering around." "Get your shit together and get out."
I "wander around" because I get out of school at 3:05 and have a job that starts at 4, Ace is right across the street so I hang around there designing things (like these valves) so I can come back later and buy them when I have enough time. The crazy guy first asked me if I was looking for something. I said I was just wandering around and he had the outburst I wrote up there^.
Spudstuff, I get it from Ace Hardware, I'm not sure if they can cut it. I just had kind of a "confrontation" with some seriously insane (I seriously think he was INSANE, he had that kind of crazy pop-eyed demented kind of look) Ace employee who told me to "get the f*ck out of the store." "He knows what I'm up to (absolutely nothing)." "He's seen me around almost every day wandering around." "Get your shit together and get out."
I "wander around" because I get out of school at 3:05 and have a job that starts at 4, Ace is right across the street so I hang around there designing things (like these valves) so I can come back later and buy them when I have enough time. The crazy guy first asked me if I was looking for something. I said I was just wandering around and he had the outburst I wrote up there^.