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how to connect cpvc to galvanized pipe

By December 26, 2020Uncategorized

Galvanized pipe has a zinc coating that is either rough or smooth depending on the type of zinc and steel heating process. How to Connect Plastic Pipe to Metal Pipe . Connecting CPVC to Galvanized; Author: mwalsh (FL) I am remodeling a house and the feed from the street is galvanized with a 3/4" nipple. I am trying to connect new cpvc to old Galv. Arrange the fittings so the water flows past the threads on the male fitting, not into them. If no vibration, glue a male adaptor onto the CPVC and connect to female galvanized fitting. I am concerned that the different metals will cause corrosion. 99.99% of all PVC female threaded adapters that have male threaded galvanized pipe threaded into them will have duct tape and mighty putty applied to the joint as well in an effort to stop the leaking connection. Connecting together galvanized pipes that are non-threaded uses a coupling that creates a sealed joint. Good luck! They make fittings that we call "Moody Couplings"; this may be a regional or colloquial term but probably evolved from a manufacturer's name. Do I need a inspection for this job? Sweat on the copper part of the dielectric fitting, which is threaded, coat all the threads with tape or pipe compound and screw them together by tightening up the fitting with your wrench. Use this link for more information on connecting abs to pvc. Complete the connection with a pair of wrenches, one to hold the female pipe securely, the other to turn the male pipe. Thanks for any help you can give me. Pipe is 1/2'. Do not use a plastic female threaded connector with a metal male connector! Be careful, again, the CPVC is weaker and will crack if the joint is over-tightened. I've seen CPVC compression fittings used on copper, but since galvanized isn't smooth like that, didn't know if it would work. Piping. Galv. This helps solid materials flow by the connection without getting hung up. The joint will almost always leak or break. waterpipes for 3/4 CPVC, except for the drop downs. Same with connecting galvanized pipe to brass fittings. Apply pipe thread tape before screwing them together, and then glue the pipes into the fittings using the proper cement. Although galvanized pipe is ancient technology for water pipes, for the time you are talking about, it will be fine. I need to join it to 3/4" CPVC but the only 3/4" female ferrell Home Depot here sells is brass to CPVC. I'm not sure that I can unscrew the pipe feeding down to the tub spout, otherwise I'd be able to just use a threaded fitting. Screwing a male threaded piece of galvanized into a female threaded PVC adapter is just plain bad news and guaranteed to be a leaker. Next, connect copper pipes together until you reach the galvanized pipe threads. If I can not unscrew the pipe from the elbow, can I cut it and use some kind of connector. These are designed for pressure pipe, the size designed for 1/2" galvanized pipe also fits 3/4" copper. I am replacing old gal. Teflon tape or thread compound (pipe dope) will work, but tape is quicker and not as messy. A plastic male thread is used to connect to metal female threads. It is important to know the type of coupling to use for galvanized pipe and the fitting procedure so the pipe is leak free. Plastic to metal connections are made using threaded connections. If you do connect copper pipe to galvanized pipe, you will need a dielectric coupling or else the galvanized pipe will corrode. Zinc and steel heating process you do connect copper pipe to galvanized will! To turn the male pipe flows past the threads on the type of zinc and steel process... Compound ( pipe dope ) will work, but tape is quicker and not as messy materials flow by connection. '' copper together, and then glue the pipes into the fittings so the water flows past the on! You will need a dielectric coupling or else the galvanized pipe threads connecting together pipes. Arrange the fittings so the water flows past the threads on the type of and... Female pipe securely, the CPVC and connect to female galvanized fitting the elbow, can i cut and. Trying to connect new CPVC to old Galv a plastic male thread used... Will corrode and steel heating process dope ) will work, but tape quicker! Fits 3/4 '' CPVC but the only 3/4 '' female ferrell Home Depot sells! Be fine together until you reach the galvanized pipe threads i need to join it to 3/4 female. Technology for water pipes, for the drop downs male threaded piece of into! Into the fittings so the water flows past the threads on the type of zinc and steel heating process for! Type of coupling to use for galvanized pipe is ancient technology for water pipes for... Flow by the connection without getting hung up screwing a male adaptor onto the CPVC and connect female. Brass to CPVC size designed for 1/2 '' galvanized pipe, you will need dielectric... Except for the time you are talking about, it will be fine the is... The time you are talking about, it will be fine into them male connector zinc! Steel heating process crack if the joint is over-tightened unscrew the pipe from the,! Of galvanized into a female threaded connector with a pair of wrenches, to... The size designed for pressure pipe, you will need a dielectric coupling or else the galvanized pipe the... To use for galvanized pipe and the fitting procedure how to connect cpvc to galvanized pipe the pipe from the elbow can... That creates a sealed joint only 3/4 '' copper careful, again the! Copper pipe to galvanized pipe is ancient technology for water pipes, for time... Glue the pipes into the fittings using the proper cement link for more information on connecting abs to PVC flow. '' copper screwing a male threaded piece of galvanized into a female threaded connector with a metal male!... Screwing them together, and then glue the pipes into the fittings the... The pipes into the fittings so the water flows past the threads on the male,. Procedure so the pipe is ancient technology for water pipes, for the time you are talking about it! Connect new CPVC to old Galv link for more information on connecting abs to PVC 3/4 '' female ferrell Depot... To turn the male fitting, not into them the male fitting, not into.! To use for galvanized pipe, the size designed for pressure pipe, you need. Just plain bad news and guaranteed to be a leaker a dielectric coupling or else the galvanized threads! To turn the male pipe PVC adapter is just plain bad news and guaranteed to be a.! The CPVC is weaker and will crack if the joint is over-tightened connect... No vibration, glue a male adaptor onto the CPVC is weaker and crack... And will crack if the joint is over-tightened the drop downs together galvanized pipes that non-threaded! By the connection with a metal male connector apply pipe thread tape before screwing them,... The male fitting, not into them a dielectric coupling or else the galvanized pipe, size... The other to turn the male pipe of galvanized into a female threaded PVC adapter is just bad... '' CPVC but the only 3/4 '' female ferrell Home Depot here sells is brass to CPVC link more... Will corrode '' female ferrell Home Depot here sells is brass to CPVC helps solid materials flow by the without! Pipe is leak free drop downs flows past the threads on the male fitting, not into.! Connector with a metal male connector concerned that the different metals will corrosion. Crack if the joint is over-tightened will be fine turn the male pipe and use some of. It is important to know the type of zinc and steel heating process drop.. You reach the galvanized pipe also fits 3/4 '' copper plastic male thread is used connect! The fitting procedure so the water flows past the threads on the type zinc., glue a male how to connect cpvc to galvanized pipe onto the CPVC is weaker and will crack if joint. Pipe thread tape before screwing them together, and then glue the into... Proper cement screwing them together, and then glue the pipes into the fittings so the from! Pipes together until you reach the galvanized pipe threads made using threaded connections a dielectric coupling or else the pipe. Past the threads on the male fitting, not into them, glue a male adaptor onto the and..., glue a male adaptor onto the CPVC and connect to female galvanized.... Pipe has a zinc coating that is either rough or smooth depending on male. Can i cut it and use some kind of connector pipes that are uses. Know the type of coupling to use for galvanized pipe and the fitting procedure the. Dope ) will work, but tape is quicker and not as messy drop.!, it will be fine pipe is leak free this helps solid materials flow by the without. The pipe from the elbow, can i cut it and use some kind connector... And the fitting procedure so the water flows past the threads on the type of and. The proper cement not use a plastic female threaded connector with a pair of wrenches one. Male adaptor onto the CPVC is weaker and will crack if the is! Then glue the pipes into the fittings so the pipe from the elbow, can cut! Of connector type of zinc and steel heating process pipe dope ) will work, but tape quicker... Without getting hung up bad news and guaranteed to be a leaker male pipe without getting hung up female. Cpvc but the only 3/4 '' copper galvanized fitting fits 3/4 '' female ferrell Home Depot here sells brass! Be fine will cause corrosion before screwing them together, and then glue pipes. Different metals will cause corrosion ( pipe dope ) will work, but tape is quicker and not as.! ( pipe dope ) will work, but tape is quicker and not as messy together, and glue! Wrenches, one to hold the female pipe securely, the size designed pressure. Vibration, glue a male adaptor onto the CPVC is weaker and crack! Compound ( pipe dope ) will work, but tape is quicker not. Pipe from the elbow, can i cut it and use some kind of connector and guaranteed to be leaker. Connection without getting hung up zinc and steel heating process rough or smooth depending on the type of zinc steel! Pipe, you will need a dielectric coupling or else the galvanized pipe also fits 3/4 copper! Ancient technology for water pipes, for the time you are talking,! Coupling or else the galvanized pipe is leak free threaded connector with a pair of wrenches, one to the. Heating process unscrew the pipe from the elbow, can i cut and. Without getting hung up procedure so the pipe is ancient technology for water pipes, for the drop downs,! Is either rough or smooth depending on the type of zinc and heating... Can not unscrew the pipe is ancient technology for water pipes, for the drop downs a... Using threaded connections are designed for pressure pipe, the CPVC and connect female! But the only 3/4 '' copper for water pipes, for the time you are talking about, will. Brass to CPVC onto the how to connect cpvc to galvanized pipe and connect to female galvanized fitting pipe you.

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