PPM Expanding Pipe Stoppers

Sizes: 1½" - 72" (38 mm - 1,829 mm)


Expandable test plugs for purging and general pipe blocking

Pipe stoppers, or drain plugs, as they are sometimes known, are used to temporarily seal the end of a pipe or opening for many different testing applications. Pipe stoppers are mainly used to seal off from water, gases and foreign objects in newly laid pipes, or pipework systems that are under repair.

PPM Pipe Purge System range of pipe stoppers are available in a number of different styles to suit many applications for pipe sizes from 1½ - 72". Special Pipe stoppers are also available for pressure testing.

Download our Expanding Pipe Stoppers Catalogue Here











    How it works

    A central spindle/shaft on which two plates are fitted with a natural rubber tire (ring) between them, a wing nut on the shaft moving the two plates together compressing the tire and making the seal in the pipe. These stoppers can also be supplied with a hollow shaft version for screwing on standard hose connections or for using fixed or free nipple caps.

    Expandable Pipe Stoppers are available in three different types.


    Aluminium Plugs - 11/2 - 36" (40 mm - 900 mm)

    To complement the range of nylon expanding plugs, we offer all sizes of Aluminium plugs. These are provided in sizes from 11/2" upwards and are suitable for more arduous duties such as i mmersion in chemicals and/or higher temperatures.

    Nylon Plugs - 11/2 - 6" (38 mm - 150 mm)

    Nylon plugs are the standard ‘Drain Plugs’ for testing leak tightness of foul water lines at the time of installation. Furthermore, the range of sizes make these plugs ideal for a number of other applications in the water and gas industries as well as applications in all other industries where pipes are used or where there are holes to be blocked.

    Steel Plugs - 11/2 - 36" (40 mm - 900 mm)

    PPM Pipe Purge System also manufactures a range of Steel plugs from 11/2 - 72" in diameter. These plugs are typically suitable for more arduous duties such as long immersion in water and use at higher temperatures or contact with acidic or alkaline environments for which the Nylon and Aluminium plugs may be unsuitable.

Pipe Purging Equipment

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Mathey Dearman Inc., B&B Pipe and Industrial Tools LLC, and TAG Pipe Equipment Specialist Ltd. are proud to announce the merging of the three companies into one business. While the strong brand names will continue, the new organization will be named Specialized Fabrication Equipment Group, or The S.F.E. Group.