I have found only one connector that works perfectly for vacuum pressure. This solid brass vacuum bag connector locks on to the vacuum bag valve stem with a strong spring-loaded clip and features a soft cast O-ring which makes a leak-proof connection. This nicely machined connector has a 1/4" NPT-female thread. To use the lock-on connector with your vacuum press system, you will need a brass barbed fitting to match the inside diameter of your vacuum tube. This option can be selected above. The barbed fitting attaches to the 1/4" NPT-female thread on the lock-on connector.
The "connection side" of the lock-on connector is compatible with the following items:
All lock-on connectors now ship with a special large bore to allow maximum vacuum flow.
Review by Bijeshj
I purchased this to make it easy plug and unplug in multiple clamping devices. Joe was very helpful in answering questions and really fast shipping.
Review by Randy C
One of my biggest issues with my connection of my hose to my bag was having to connect the 1/2" tubing to the old barb fitting on the bag and using a hose clamp to secure. Yes...the connection was completely sealed, but I had to hook the hose on before I put my piece in the bag. It was a pain. All my issues were with the hook-up. This quick connector alleviated all of this. I couldn't order it fast enough and even bought a new valve stem kit to replace my old one. I bought a new poly bag and it came with the new valve stem so I can do all my hook-up with this quick connect. It is by far the best thing out there. Highly recommended.
Review by Michael A.
Nice product. I've bought 4 of these to make a manifold system for gluing skateboards in 4 bags at once. This connection system is very rugged and I have never had any leaks with it.
Review by Gerard W.
This connector works very well and I have not yet had any problems making an easy airtight connection. I have another bag from a different company and the tube just gets jammed into a nipple of the bag. Sure enough, it seemed like every time I used it, I ended up snagging the tube on something and then pulled it off the bag. This creates a mad dash back to the bag to re-attach the tube. With this connector, I've had not problems at all. I can pull all day long on the vacuum tube and it will not come of the bag. My shipping cost to Michigan was very affordable. Joe runs a great site and his customer service is impeccable.
Review by Craig Watkins
I have 6 of these connectors on my vacuum press manifold. I generally run 6 small bags at a time with the manifold and I have a lock on connector at the end of each of the manifold ends. This is a highly quality piece of machined brass that makes a good seal on the stems. There are other options that some companies offer which dont work quite as well. I've had a few of them come loose and nearly ruined my project. I doubt these connectors could pop off accidentally. Even if you tug on it when moderate force, it stayed connected and sealed.
I should mention that all of my current vacuum press equipment is coming from this website. I just find that the customer support here is second to none and the products are always well made and reliable.
Review by Nathan G.
No problems. Works as described and shipping was reasonable.
Review by Todd Greene
This is a suprisingly secure bag connector. It definitely feels like a heavy duty product. I had some concerns about how well it would seal against the valve stem but these worries were quickly put to rest when I tried it out on my vacuum bag. The shipping charge was reasonable (though I did have other things with my order) and it only took a couple of days to get here. I'm very satisfied.
Review by Robert J.
Excellent item. Very smart "borrowing of an idea" from another industry.
Great job Joe!
Review by Joel T.
Great product. Worked just as I had hoped. I will be ordering more parts very soon.
Review by Mike Joonesburg
Very nice product. Works very well!
Review by Tom Burwick
Right on the money! This connector is just what the doctor ordered!!! A non-proprietary, heavy duty, and tough as nails bag connector - Finally! Thank you Joe for the outstanding find!
Review by John Dominoc
Very well made connector... very beefy and rugged and makes connecting to the bag a simple one handed process.