Quck answer
To connect a galvanized pipe to a CPVC pipe, you will need a transition fitting. This fitting has a threaded end that connects to the galvanized pipe and a solvent weld end that connects to the CPVC pipe.
Here are the steps to connect the two pipes:
1. Cut the galvanized pipe to the desired length using a pipe cutter.
2. Clean the cut end of the galvanized pipe with a wire brush to remove any dirt or debris.
3. Apply pipe joint compound to the threaded end of the transition fitting.
4. Screw the transition fitting onto the galvanized pipe tightly using a pipe wrench.
5. Cut the CPVC pipe to the desired length using a pipe cutter.
6. Clean the cut end of the CPVC pipe with a clean cloth.
7. Apply PVC cement to the solvent weld end of the transition fitting.
8. Insert the CPVC pipe into the solvent weld end of the transition fitting and hold it in place for a few seconds to allow the cement to set.
9. Allow the cement to dry completely before turning on the water supply.
By following these steps, you can successfully connect a galvanized pipe to a CPVC pipe.
CPVC piping is popular among homeowners for its high tolerance for antibacterial chemicals, making it ideal for hot and cold water supply and simple repairs or additions to existing systems. Transitioning from galvanized to CPVC can be easy with basic tools.
What You Will Need:
- Reciprocating saw
- Metal cutting blade for reciprocating saw
- 2 pipe wrenches
- Adjustable wrench
- Tongue-and-groove pliers
- Permanent marker
- Teflon tape or pipe thread sealant
- CPVC cement
- Appropriate pipe thread fitting
- CPVC male adapter
Steps to Connect Galvanized Pipe to CPVC Pipe
Step 1: Determine Pipe Size
Most homes have supply piping with an inside diameter of 3/4 inch or 1/2 inch nominal size. Larger homes might have 1 inch piping. Measure the inside diameter and subtract 1/4 inch from the outside diameter of the galvanized pipe to determine the nominal size.
Step 2: Turn Off Water
Turn off the closest valve to the work area or shut off the water to the whole house.
Step 3: Cut Pipe
Cut the pipe near a threaded fitting using a reciprocating saw. Leave enough pipe to safely grasp with a pipe wrench or pliers. Skip this step if not making a repair.
Step 4: Remove Pipe From Fitting
Use two pipe wrenches to remove the pipe from the fitting. Turn the pipe counterclockwise from the fitting with one wrench while backing up the fitting with the other wrench. If the pipe doesn’t unthread, double-check the direction and try again. If unsuccessful, call a professional.
Step 5: Apply Pipe Thread Sealant
Apply thread sealant or Teflon tape to the male threads of the connection in a clockwise manner.
Step 6: Screw in Adapter
Screw in the adapter to the galvanized fitting with an adjustable wrench. Support the fitting with a pipe wrench and secure it tightly with the adjustable wrench.
Step 7: Glue Connection
Use the CPVC cement to glue the connection on the opposite side of the mechanical connection.
Step 8: Restore Water Flow
Upon completing the necessary steps and allowing sufficient time for the adhesive to dry, turn on the water supply and examine for any leaks.
Push-Fit Connections
Push-fit plumbing fittings, including SharkBite and other similar brands, have proven to be a convenient solution for repairs for decades. Although they may be pricier than slip adapters, their versatility and ease of use make them an excellent choice. These fittings can be installed on various types of pipes, including PEX, copper, and CPVC.
Refer to the instructions on the fitting packaging and mark the depth of the socket in the fitting with a permanent marker (this measurement is usually included in the instructions but varies depending on pipe size). Once the fitting has been marked, insert the pipe into the fitting, ensuring that it has been pushed in completely up to the mark. After the fitting has been installed according to the instructions, turn on the water and examine for any leaks. Remember to account for the expansion and contraction of CPVC piping.
FAQ
1. Can I connect galvanized pipe to CPVC pipe?
Yes, it is possible to connect galvanized pipe to CPVC pipe, but it requires the use of transition fittings. Galvanized pipe is typically threaded, while CPVC pipe is solvent-welded. To make the connection, you will need to use a galvanized-to-CPVC transition fitting, which has male threads on one end and a solvent-weld socket on the other end. Apply PVC primer and cement to the CPVC pipe and the fitting, and then tighten the male threads into the galvanized pipe. This will create a secure and watertight connection between the two pipes.
2. What are the advantages of connecting galvanized pipe to CPVC pipe?
Connecting galvanized pipe to CPVC pipe allows you to take advantage of the benefits of both materials. Galvanized pipe is durable and resistant to corrosion, while CPVC pipe is lightweight and easy to work with. By connecting the two, you can create a strong and long-lasting plumbing system. Additionally, CPVC pipe is more cost-effective than galvanized pipe, making it a popular choice for residential and commercial applications. The combination of these two materials provides a reliable and efficient solution for your plumbing needs.
3. Are there any disadvantages of connecting galvanized pipe to CPVC pipe?
While connecting galvanized pipe to CPVC pipe can be a practical solution, there are a few potential drawbacks to consider. Galvanized pipe can corrode over time, which may affect the overall integrity of the connection. Additionally, the transition fittings required for the connection can be more expensive than standard fittings. It is important to properly maintain and inspect the connection to ensure that it remains secure and leak-free. Regularly checking for signs of corrosion or damage and addressing any issues promptly can help mitigate these potential disadvantages.
4. Can I connect galvanized pipe to CPVC pipe without using transition fittings?
No, it is not recommended to connect galvanized pipe to CPVC pipe without using transition fittings. Galvanized pipe and CPVC pipe have different joining methods – galvanized pipe uses threaded connections, while CPVC pipe uses solvent welding. Attempting to connect these two types of pipes without the appropriate transition fittings can lead to leaks and other plumbing issues. Transition fittings are specifically designed to create a secure and watertight connection between galvanized and CPVC pipes. It is always best to follow the manufacturer’s recommendations and use the proper fittings to ensure the integrity and longevity of your plumbing system.
5. Can I use Teflon tape when connecting galvanized pipe to CPVC pipe?
No, Teflon tape should not be used when connecting galvanized pipe to CPVC pipe. Teflon tape is commonly used on threaded connections to provide a seal, but it is not compatible with CPVC pipe. CPVC pipe requires the use of solvent cement to create a strong and leak-free joint. Teflon tape can interfere with the solvent cement’s ability to bond properly with the CPVC pipe, resulting in a weak connection. It is important to use the appropriate joining method for each type of pipe to ensure a reliable and durable plumbing system.