Is it possible to connect PVC pipe to cast iron?
At this point in the game, most cast iron is so bad that finding a viable piece to connect the PVC pipe is almost impossible. And since most cast iron systems are underground, getting to the pipe or a usable piece of pipe might involve tunneling.
Can a PVC flange be joined to a RF flange?
For an example: I would not hesitate to mate a 10″ #125 cast iron flange with a #150 PVC RF flange. To machine the raised face off the PVC flange would be the wrong/bad advice to give to anyone. The PVC flanges typically deflects so much in the bolting area that it requires the raised face to seal.
Can a flat cast iron flange be used with a raised face flange?
If you try to match a flat cast iron flange against a steel raised face flange, the steel variety will win the contest. The flat flange will break up when the bolts are torqued. Montemayor is correct. Don’t! If the installation falls under one of the pressure piping codes, it’s not permitted.
What’s the best way to move a cast iron toilet drain?
Use PVC primer and cement to glue all PVC connecting fittings to the pipe. The pipe must hang with a downward slope of 1/4 inch of fall for each linear foot in the direction you want the water to drain. Use the strap or pipe hooks to support the new PVC pipe at maximum intervals of 4 linear feet.
At this point in the game, most cast iron is so bad that finding a viable piece to connect the PVC pipe is almost impossible. And since most cast iron systems are underground, getting to the pipe or a usable piece of pipe might involve tunneling.
What kind of adapter to use for PVC pipe?
You have used wrong adapter-connector to connect cast iron pipe to ABS/PVC. Per Code when connecting the ABS or PVC to cast iron you should use No-Hub Adapter fitting. Rubber connector or Flexible Coupling are allowed only under ground.
Use PVC primer and cement to glue all PVC connecting fittings to the pipe. The pipe must hang with a downward slope of 1/4 inch of fall for each linear foot in the direction you want the water to drain. Use the strap or pipe hooks to support the new PVC pipe at maximum intervals of 4 linear feet.
What’s the best way to break a cast iron pipe?
Use a chain cutter, hammer and cold chisel, or grinder to break the pipe a few inches before the hub on the next pipe. This short YouTube clip shows how easy it is to cut cast iron with a chain cutter. Next you’ll want to use a hammer and cold chisel to break up the remaining bit of pipe, being careful not to damage the hub.
