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Sch 80 PVC Flanges

Flanges connect to pipes and can serve three purposes – they can be used to stop the flow in the pipe, increase the strength of the pipe, or allow for an attachment. Schedule 80 PVC flanges create a tight seal when pressing two surfaces together. This seal can be created with bolts, compressive force, edges, or clamps; however, bolts are the most common choice.
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Flanged fittings have a flat, disk-shaped wall on the end of the fitting. Bolt holes run through the disk at equidistant points, and a groove or channel circles the orifice on the outer surface of the flange. To secure the fitting, an O-ring twice the height of the groove is inserted into it, and a matching flanged fitting is adjoined such that the O-ring fills the two matched grooves.

The flanges are rotated until the sets of holes line up, and machine screws are inserted and secured tightly with nuts. Tightening the bolts draws the two flanged ends tightly together, and the O-ring expands and flattens under the pressure to seal the flanges together.

This type of fitting is widely used in industrial settings with stainless steel piping, but it is also an available fitting for schedule 80 PVC pipe. Schedule 80 PVC has thick walls that allow the pipe and fittings to withstand pressures that would burst thinner schedules. PVC is far less expensive than metal, but it holds up equally well against many corrosive industrial liquids. It is an ideal solution for pressurized water distribution.

Browse our wide selection of schedule 80 PVC flanges now.