You should refer to the recommendation of the pipe manufacturer AND the coupling/fitting manufacturer when installing any pipe.Pipes at King County’s jail are breaking down less than a decade after they were installed, pushing the county to spend $23.5 million to repair them.
Your local McWane sales representative or McWane distributor will be able to help you find the best option when connecting DI to other pipe materials. I have listed several companies that manufacture standard, and special, custom-made couplings that should suit any application you have.
There are many coupling manufacturers that can make couplings for the exact material you are connecting, once you have determined the type, size, and OD you are connecting. In some cases, the pipe manufacturer may need to make this adapter. Many types of pipe will require custom-made couplings to make the connection to DI (or any other) pipe. When connecting DI pipe to an existing steel pipe, concrete pressure pipe, AC, or other pipe, it may be necessary to expose the existing pipe to determine the type, size, OD, and if possible, manufacturer of the existing pipe. For example, a DI restraint gasket may not work on PVC pipe that is designed to work on DI pipe. If there is an issue with the joint after installation, the manufacturers of the two pipes may not be able to provide help with their material connecting to the other material.Īnd last, when restraint is required, one manufacturer’s restraint method may not apply to the other manufacturer’s material. Inserting DI pipe into a PVC pipe bell (DI Size PVC) or inserting DI OD PVC pipe into a DI pipe bell should technically work, when no other means are available.Ĭonsiderations for this application are, the depth markings on the pipe being inserted must be adjusted to accommodate the depth of the bell that the “other” pipe is being inserted into. Please be sure to follow the manufacturer’s recommendation for their product and the pipe being used.
STAINLESS STEEL PIPES IN HOME CLASS ACTIO SUIT HOW TO
These devices can come in restrained and non-restrained configurations.Įvery manufacturer will have their own specific instructions on how to assemble and tighten the connection for their coupling on the type of pipe being used. Once this is done, you simply connect and tighten the coupling/fitting per the manufacturer’s recommendation.Īgain, the coupling or adaptor must be the correct size and range for DI pipe. You can also “field check” the pipe where you are going to connect the coupling by sliding a MJ gland over the pipe where you are connecting the coupling/fitting. If possible, check the pipe in the field with an OD tape. This should ensure that the pipe OD is within spec. On cut-pipe 14 inches in diameter and larger, you should use pipe that has been marked as “gauged” if possible, and make sure any cuts are at least 2 feet from the bell. This is especially true if you have a large diameter pipe or you have cut the pipe you are connecting. The only consideration to keep in mind would be to check the DI pipe OD to ensure the pipe is within the correct OD range. This is true for the ductile iron side as well. The OD of the pipe must be within the “minimum and maximum” OD range for the coupling. The coupling to be installed must first be the correct nominal pipe size and have the correct “range” for the pipes being connected.
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