I get swagelok 3/8” directly from them for like $150 a pop. Never had the slightest issue with the valves.
The quick connects suck tho. Not worth the extra $100 for those
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Hamlets leak on the daily. Even the brand new ones
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Wrench tighten the nuts. Couple opens and closes and the nuts loosen. Don’t understand it. Literally have liquid solvent dripping out of them every few runs unless I keep cranking them down till they are tight. Had a nut nearly fall off one midrun, the handle was just wiggling loose when I went to turn it. Again, any advice on something I’m overlooking would be wonderful! Maybe we just got a bad batch of them
What about Dernord? They’re not too bad.
swagelok
i made a thread on this a while ago, some more good info in there too
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Agreed. The compression ones on my system only use a ptfe washer with a nut to seal the valve seat. It sucks and if I knew that before I bought 2k worth I wouldn’t have… I shoulda bought one to sample first… I don’t get many leaks cus I check them before every run but if they need to be adjusted hot or cold they will warp and are fucked…
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I absolutely hate block style ball valves. My prior industries used solid body designs with integrated seating surfaces and they leaked so much less.
Depending on your budget: One-Piece Instrumentation Ball Valves, 40G and 40 Series | Ball and Quarter-Turn Plug Valves | Valves | All Products | Swagelok
Edit: Not really needed except maybe for the super critical CO2 guys, but if you want to step into the big leagues: http://www.autoclave.com/aefc_pdfs/vftcc_english.pdf
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Are you tightening down a nut that holds a handle in place? Or are you removing a nut, removing a washer, removing the handle, cleaning any residual oils from the packing nut, and then tightening the nut that retains that seal?
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hamlets leak even when brand new
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+1 on what nut are you tightening?
You need to tighten the packing nut not the handle
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Idk man theyve been on our system including solvent tank for about 8 months. Sounds like you dont know how to take care of them. Ive never had a new one leak and i have like 60 of them
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I was a merchant marine in a former life. They taught us to adjust packing gland nuts 1/16th of a rotation at a time. Cause you can always go tighter, but you can’t go looser
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The price for hamlets vs china swage clones,
Pros/ cons
Before you go telling people they don’t know how to take care of equipment, please tell me why the ham-let valves DO NOT have the packing nut. They have one accessible nut outside the handle, unlike the blue valves which have two. I’m not stupid, I asked for advice on an issue I’m having, not for someone to incorrectly state how these are built. Again, if I’m wrong please tell me what I do not yet know. What I do know is that the nut gets loose very quickly, I’m running my machine every day and have to check every valve to see which need to be tightened or else they begin to leak
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Accidental post
The only time i notice loose valve handles is when i accidentally let the safety stay down when i open the valve. Loosens the handle up.
Also i wasnt even replying to you when i said that so chill man. Go look for yourself. Im tryin to help you
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Xtractordepot. Just bought them a few weeks ago. If this is their new design it’s definitely flawed. My 3/8 and 1/2” are all like this
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