The diameter of the corrugated pipe has to be large enough to accommodate the PVC pipe, but not so large that it will be impossible or difficult to seal up properly. For example, if the PVC pipe is about 2 inches in diameter, you will want the corrugated pipe to be about 4 inches.
A: You can't glue PVC pipe directly to metal pipe of any type. PVC cement creates a solvent bond with plastic only, and doesn't adhere to metal. If your code allows it, the pipe can be inserted into a rubber seal that fits inside the hub, then sealed in place with a sealant specifically made for this application.
If the metal pipe is threaded (or can be threaded), the easiest way to go is with a threaded PVC coupling. The threaded end is screwed onto the metal pipe with some thread sealant tape or liquid, and the PVC can be attached using PVC glue or a threaded PVC nipple.
PVC Compression Coupling Features & Benefits:
Will also work on galvanized, brass, or stainless steel pipes.
Drainage – Because the corrugated pipe is perforated all the way around with many more openings, water won't sit in the pipe but will quickly drain out. With PVC, the openings are far fewer and water can accumulate.
Corrugated Flexible Drainage Pipes
Due to its low wall strength this pipe is extremely flexible and typically comes in 100 ft coils. The most common application this pipe is used for is a French Drain which would be a perforated version of this pipe, but there are other uses for it as well.
While landscapers use “non-rigid corrugated NDS pipes,” we use drainage grade PVC pipe because it is more durable and longer-lasting, especially when buried under heavy materials like soil. The corrugated pipe is cheaper but not nearly as strong.
Pros of solid PVC pipe:
Durability: This type of pipe is much more durable than corrugated pipe - it isn't penetrable by roots and is simple to unclog. Smooth walls: The walls of PVC pipe are smooth, so it is less likely to clog or to catch debris that slows water flow.
Corrugated plastic pipes are thin walled pipes, typically . 02” thick, with a series of grooves running parallel to each other along the length of the pipe, while rigid polyvinyl chloride (PVC) pipes are thicker, ranging from . 1” to .
Corrugated pipes are much more flexible than PVC pipes, and can be easily bent or shaped to fit any space. However, this flexibility comes at a cost, as corrugated pipes are much more likely to collapse or be damaged than PVC pipes.
Corrugated pipe is a flexible material, built with alternating ridges and grooves. It is used in drains where flexibility, durability and strength are important. Corrugated pipe can be used at your home to carry water runoff from gutters and eaves.
Insert one end of the unthreaded galvanized pipe into the fitting. Align the coupling end with the drawn line on the pipe. Insert the second pipe into the coupling and place the coupling centered between the two drawn lines.
The answer is very simple; compression fittings are extremely reliable!
Resistance to Corrosion: PVC-coated steel is more resistant to corrosion than traditional steel. The PVC coating forms a barrier that protects the steel from moisture and other environmental factors that cause rust and corrosion.
The right way to assemble a threaded PVC joint-Schedule 40 or 80 is finger tight plus one to two turns-no more. Two turns past finger tight plus the stress of the system pressure is within the tensile strength of one-inch PVC. Don't use Teflon tape, Teflon paste or pipe dope. Do use a sealant.
Yes, plastic and metal pipe can be connected, but you need to be careful. It takes a little finesse. Your best bet is to hire a professional.
That means if you have a PVC pipe connection, you should install a PVC closet flange. A cast iron connection will require a cast iron toilet flange, and so forth.