>From everything I've had a chance to read about, M is a female connector. It >sounds like a union. The descriptions I saw said it had quarter inch female >threads, was ideal for air hose assemblies.
One site had Milton air tools, a brand I've used for years, and their M style said it was part of the Milton interchangeable series and will work with other fittings with 1/4 NPT fittings. You would think that would be a F style since it is female but that's what I get for thinking... So if you saw a manifold, I would have to think it is a series of female threads in a pipe or bar. All seemed to have a max air pressure of 300 PSI. ----- Original Message ----- From: Dale Leavens To: [email protected] Sent: Monday, November 16, 2009 6:27 PM Subject: Re: [BlindHandyMan] Help with air fittings Schedule L copper is bully acceptable, I assure you but that isn't really my question. What is an M-type fitting? Do they make a manifold which includes valves? Thanks. ----- Original Message ----- From: Ron Yearns To: [email protected] Sent: Monday, November 16, 2009 5:49 PM Subject: Re: [BlindHandyMan] Help with air fittings Just a comment or two. All my quick disconnect fittings came with quarter inch pipe threads. Some places may have them in three eights, maybe just my luck. I have been told to use only black pipe on air and gas as galvanized may have pieces that flake off and may clog orifices. Galvanized was originally made for water use. It does tend to clog with calcium over the years quicker than copper can. Anyway for I think we all agree use black iron. Ron ----- Original Message ----- From: Bob Kennedy To: [email protected] Sent: Sunday, November 15, 2009 8:58 PM Subject: Re: [BlindHandyMan] Help with air fittings Sorry to be so late on this one. I have my shop set up with half inch black pipe. Galvanized will work as well. What you can do is use a shut off valve in the line you are branching to. this keeps the air pressure high where you want it. I have a few runs, each one branches off of a T valve. I keep it to half inch until I get to where the fitting goes and then have to use a half to 3/8 reducer. The quick disconnect will thread on to a 3/8 nipple. Not sure about the term they are using there. I guess everything has to have a technical name. I have always run my air lines just like plumbing other than I don't use black or galvanized pipe for water. ----- Original Message ----- From: Dale Leavens To: [email protected] Sent: Saturday, November 14, 2009 7:07 PM Subject: [BlindHandyMan] Help with air fittings I am looking or some help and information on air fittings probably from some of you who hang around mechanics shops. I am wanting to set up a bit of a network with a couple of points outside, the driveway and the back yard for example and a couple of points at opposite ends of my basement. There happens to be a sale at boss tools but I am unfamiliar with some of the terminology. There are a couple of 1 to 3 manifolds, one describes an M-style couplings. What are m-style couplings? I believe I would really prefer some sort of device which would permit me to select which part of the network to charge with maybe a ball valve, if these have such they don't describe them as such. Just that it seems unnecessary to charge yards and yards of hose when I only need one. Are you aware of such a device or must I fabricate some sort of panel? There will probably be more questions in due course. Thanks. [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
