Can you connect plastic pipe to metal pipe?

Connecting the Two Pipes



To successfully connect plastic and metal pipes, you need threaded connections. The plastic male thread must connect to the metal female thread. If you try to connect it the opposite way – a plastic female to metal male – then the connection will ultimately break or leak.

How do you connect PVC pipe to metal drain?





Quote from the video:
Quote from Youtube video: We'll take a nut place it over a metal pipe and then take a washer slide that plastic over the metal pipe. And then slide your s trap. Into your pipe. And then tighten that nut.

How do you connect PVC pipe to sewer line?

Quote from the video:
Quote from Youtube video: I was able to install this coupling fitting by removing stainless steel clamp i decided to use both donut fitting and coupling fitting.

How do you connect PVC to cast iron drain?

Quote from the video:
Quote from Youtube video: Slide the gaskets onto each end of the PVC assembly and fold each gasket back on itself then insert the assembly and unfold the gaskets onto the cast. Iron.

How do you connect plastic to metal?

Epoxy as the Strongest Glue for Metal to Plastic



Epoxy seems to be the best all-around general adhesive that works on most surfaces, including plastic and metal. The epoxy will create a high-strength bond that is both impact-resistant and resistant to water, chemicals, and heat.

Can you thread plastic into metal?





To be able to thread plastic and metal fittings together the male fitting has to be plastic and the female fitting has to be metal. When fittings with a tapered thread such as NPT are tightened the male fitting is compressed and the female fitting is stretched (tensile stress).

Can I connect PVC to galvanized pipe?

We place the clamp on the galvanized pipe, insert the new PVC pipe and tighten the clamps on both ends. To ensure that the seal remains watertight, our plumbers put silicon sealant on the galvanized metal before installing the connector. Since the PVC pipe will remain smooth, there’s no need for a sealant on that end.

Can you attach plastic P trap to metal?

P-traps can be plastic or metal. The plastic ones are corrosion resistant and easier to install, so are more commonly used. It isn’t an issue if the two components are made of dissimilar materials, because the flange that seals the trap opening is always plastic.

How do you connect PVC pipe to brass drain?

Connect a female adaptor on the PVC pipe with primer and glue. Wrap the threads of the brass pipe with Teflon thread tape several times. Screw the two together by hand. Hold the brass pipe with a wrench, and with another wrench tighten the PVC fitting on the brass pipe.

Can you connect a plastic soil pipe to cast iron?



The answer is to cut off the cast iron at ground level and make the connection with the specially designed SP140 connector. The rubberised fins push inside the old pipe to make an airtight seal, and the new PVC soil pipe fits straight into the integral socket – job done!

How do you connect PVC to clay sewer pipe?

Quote from the video:
Quote from Youtube video: The small end you open it up and you put your 110 mil PVC pipe inside and on the larger end you just cut the clay pipe nice and square with an angle grinder.

Can you replace cast iron pipe with PVC?

Replacing cast iron pipe is expensive as they deteriorate from oxidization. Cleaner – Because PVC doesn’t corrode or rust, you won’t get any metal in your sewage or drinking pipes. It’s a non-toxic material, safe to use for all kinds of plumbing purposes.

When did they stop using cast iron plumbing?



Modern Replacement Pipes



Cast iron pipes finally went out of fashion in the 1980s. They were replaced by Polyvinyl Chloride plastic (PVC), which can be made quicker and more easily.

What is the life expectancy of cast iron sewer pipe?

between 80-100 years

Cast Iron: Cast iron pipes last between 80-100 years, and are built to withstand a high amount of water pressure. However, like galvanized steel, cast iron piping has been found to be susceptible to rust over time.

How do you remove old steel drain pipes?

Quote from the video:
Quote from Youtube video: You can take the sawzall. With a metal cutting blade it will cut through that galvanized pipe. And get that about the two or three inches from the where.

How do I convert galvanized pipe to PEX?



Quote from the video:
Quote from Youtube video: And you push that on there like that you put your crimp thing on and your crimp it on there. And then you run it to your fixture. And that's pretty much that.

How do you replace galvanized pipes with PVC pipe?

How to repair a galvanized water pipe with PVC:

  1. Cut out the galvanized pipe.
  2. Cut the PVC pipe to size.
  3. Apply sealant to the pipe ends.
  4. Put the new couplings onto the pipe.
  5. Install the PVC pipe.


How do you connect galvanized pipes without threads?

Use a stainless steel coupling if the galvanized pipe is in a damp position to avoid problems associated with rust. Unthreaded galvanized pipe connects together using a coupling. Connecting together galvanized pipes that are non-threaded uses a coupling that creates a sealed joint.

How do you connect threaded pipe to non threaded pipe?



You can take several approaches on how to connect unthreaded galvanized pipes. You can try to thread the pipe or use pipe thread tape to create a bond between the two pipes. Another alternative would involve welding the pipes or connecting them using coupling.

Do Sharkbites work on galvanized pipe?

The actual SharkBite push to connect fittings are not designed to press onto galvanized pipe. For mating your PEX to galvanized, SharkBite makes a threaded to press fit transition adapter. You will need to square cut the end of your galvanized pipe and then rethread it.