PVC DWV couplings are used to join two lengths of PVC DWV pipe in a straight line.
Plain couplings have an internal centre stop that allows pipe to slide halfway into the fitting on each side.
Slip couplings do not have a centre stop, allowing the full length of the coupling to slide over pipe. This is useful for making repairs and in situations with limited space or flexibility. You can slide the coupling onto one section of pipe, position the other section of pipe directly against it, and then slide the slip coupling between them.
Threaded couplings have centre stops like plain couplings, and can be used the same way. They also have a male external thread outside of one socket end. This external thread allows you to screw a matching threaded access cap onto the fitting, creating an inspection or access point, or temporarily blanking an end.
The solvent-weld sockets fit over PVC DWV pipe of the matching nominal size and are joined using PVC priming fluid and suitable non-pressure PVC solvent cement. This joining method is known as a solvent weld joint, or SWJ.
PVC DWV pipe is identified by its nominal size, which may differ from its measured outside diameter. Please confirm the required coupling type and correct DWV pipe size before ordering.
PVC DWV pipe and fittings are suitable for use in stormwater, sewerage, wastewater, vent, and other non-pressure applications.
