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Polyphase on old Devilbiss Compressor

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  • Polyphase on old Devilbiss Compressor

    I picked up a old Devilbiss Compressor and the Tag on Pressure switch shows Polyphase,never seen that before. Click image for larger version

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  • #2
    Polyphase is a generic term for "multiphase". While single phase and 3 phase are commonly known electric distribution systems there are also others. Two others that I know of personally are true 2 phase and quad phase or 4 phase. Those systems are very odd and only used in specialty systems.
    Robin

    Happily working on my second million Gave up on the first

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    • #3


      The term Polyphase is not uncommon.
      2 phase is not common, but not special.
      Just because YOU have not heard of it .............................

      -D
      DZER

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      • #4
        That's a real work horse and in pretty nice shape. I never knew Devilbiss made compressors. Looks like the date of Mfg. is 1964.
        Sealed motor (probably explosion proof) but not sure about the pressure switch box. Grease fittings. Nice............

        JL...............

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        • #5
          Four cylinder, single stage? 3 phase motor? 5 or 7.5hp?
          Peter
          Grantham, New Hampshire

          Comment


          • #6
            Originally posted by JoeLee View Post
            That's a real work horse and in pretty nice shape. I never knew Devilbiss made compressors. Looks like the date of Mfg. is 1964.
            Sealed motor (probably explosion proof) but not sure about the pressure switch box. Grease fittings. Nice............

            JL...............
            Back when I worked at Tool & Supply of Yuma we sold Devlibiss. It was our in between line. Rollaire was what all the pros wanted, and Sanborn was what all the "I just want to air up some tires" guys bought. Devilbiss was in between and those who I heard back from who bought one were always very happy. In the time I worked there I never had one come in under warranty and the few that came in out of warranty were clearly well used.
            *** I always wanted a welding stinger that looked like the north end of a south bound chicken. Often my welds look like somebody pointed the wrong end of a chicken at the joint and squeezed until something came out. Might as well look the part.

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            • #7
              At least when I was a kid, DeVilbiss was sought-after by all the auto body shops. Built like a tank, smooth and quiet and lasted forever. Nice find! I had a mentor that was using a DeVilbiss from the 1940's that came out of a dentists office, back in 1985. It's probably still running out there somewhere.
              25 miles north of Buffalo NY, USA

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              • #8
                Originally posted by rdfeil View Post
                Polyphase is a generic term for "multiphase". While single phase and 3 phase are commonly known electric distribution systems there are also others. Two others that I know of personally are true 2 phase and quad phase or 4 phase. Those systems are very odd and only used in specialty systems.
                Thanks for the ensight.
                Originally posted by Doozer View Post

                The term Polyphase is not uncommon.
                2 phase is not common, but not special.
                Just because YOU have not heard of it .............................

                -D
                Didn't expect it to be Special,had never heard of it before you know I live way up NORTH lol!
                Originally posted by JoeLee View Post
                That's a real work horse and in pretty nice shape. I never knew Devilbiss made compressors. Looks like the date of Mfg. is 1964.
                Sealed motor (probably explosion proof) but not sure about the pressure switch box. Grease fittings. Nice............

                JL...............
                The Spring on pressure switch is massive compared to newer ones I’m used to seeing.
                Originally posted by CPeter View Post
                Four cylinder, single stage? 3 phase motor? 5 or 7.5hp?
                Peter
                Four Cylinder Two Stage I think,2 small and 2 large pistons Model 432, 5hp 3ph.
                Originally posted by Bob La Londe View Post

                Back when I worked at Tool & Supply of Yuma we sold Devlibiss. It was our in between line. Rollaire was what all the pros wanted, and Sanborn was what all the "I just want to air up some tires" guys bought. Devilbiss was in between and those who I heard back from who bought one were always very happy. In the time I worked there I never had one come in under warranty and the few that came in out of warranty were clearly well used.
                I checked out info on #432 compressor,it was built for 40 years.
                Originally posted by nickel-city-fab View Post
                At least when I was a kid, DeVilbiss was sought-after by all the auto body shops. Built like a tank, smooth and quiet and lasted forever. Nice find! I had a mentor that was using a DeVilbiss from the 1940's that came out of a dentists office, back in 1985. It's probably still running out there somewhere.
                This was a backup Compressor at a GM dealer for last 30 years and was bought New at same dealer.Devilbiss listed it as a 20000 hr compressor but I’m sure it has more than that,I know the heads were rebuilt at least once.

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                • #9
                  Originally posted by rdfeil View Post
                  Polyphase is a generic term for "multiphase". While single phase and 3 phase are commonly known electric distribution systems there are also others. Two others that I know of personally are true 2 phase and quad phase or 4 phase. Those systems are very odd and only used in specialty systems.
                  Yep. A client was using 5 phase in a generator (which was converted to DC, which then went to a 200kW inverter that we designed). That's something of an extreme version of "polyphase", but not the most I have heard of.
                  CNC machines only go through the motions

                  Comment


                  • #10
                    Nice find Tundra. I bought a late 50's or early 60's vintage Devilbiss a year or so ago. It had recently been retrofitted with a new 3 HP air over 3 phase motor that turns the compressor at 583 rpm. It runs so quiet that 2 people can stand next to it and have a conversation and not have to raise their voices. Mine has some compressor wear because it takes about 10 minutes to go from zero pressure to 125 psi in a 80 gallon tank.

                    Comment


                    • #11
                      At the ADM (Pillsbury) elevator in Buffalo NY they had a Chicago Pneumatic
                      one lunger air compressor, very much like the one pictured below.
                      It was 10" bore and 11" stroke (or something like that). Anyhow, they
                      cut it up with a sawzall to get it down the elevator shaft. I saw it in the
                      scrap dumpster. I did save the brass tag off it. It was water jacketed had the
                      cylinder cooled. Neat unit. Probably ran for 80 years or more.
                      Too bad they cut it up. Would be a great shop compressor.
                      I could here it now.
                      Whhhhoooopppptttt, chuuuuggg !!
                      Whhhhoooopppptttt, chuuuuggg !!
                      Whhhhoooopppptttt, chuuuuggg !!
                      DZER

                      Comment


                      • #12
                        Originally posted by Doozer View Post
                        At the ADM (Pillsbury) elevator in Buffalo NY they had a Chicago Pneumatic
                        one lunger air compressor, very much like the one pictured below.
                        It was 10" bore and 11" stroke (or something like that). Anyhow, they
                        cut it up with a sawzall to get it down the elevator shaft. I saw it in the
                        scrap dumpster. I did save the brass tag off it. It was water jacketed had the
                        cylinder cooled. Neat unit. Probably ran for 80 years or more.
                        Too bad they cut it up. Would be a great shop compressor.
                        I could here it now.
                        Aahh man it sux when good old iron goes to the scrappers like that
                        ... and I say that as an employee of a scrapper!
                        Doozer I'm sorry I forgot to tell you:
                        They just got done auctioning the contents of the Dresser-Rand plant in Wellsville.
                        I should have told you a few weeks ago.
                        Somebody got some amazing deals.

                        I remember the plant compressor at Union Carbide in the Falls.
                        Build in the 1910's, pistons the size of sewer lids
                        and a 25-cycle(!) motor the size of a VW
                        Last edited by nickel-city-fab; 03-16-2021, 02:49 PM.
                        25 miles north of Buffalo NY, USA

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                        • #13
                          Ah Wellsville.
                          Home of WPIG, the pig !
                          Listen for the Oink ! ! !

                          -D
                          DZER

                          Comment


                          • #14
                            Originally posted by Doozer View Post
                            Ah Wellsville.
                            Home of WPIG, the pig !
                            Listen for the Oink ! ! !

                            -D
                            it pays to keep track of the craiglist ads around here, that's how I found out.
                            You might find something that makes it worth the drive
                            Some larger shops in Rochester were cleaning out awhile back
                            25 miles north of Buffalo NY, USA

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                            • #15
                              Maybe I will come up for Easter. I dunno.
                              Thinking about taking south a Pratt Whitney
                              Tool Cutter Radius grinder.

                              -D
                              DZER

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