Stemar blocking plugs are used in "blocking only" applications where flow stoppage is the only action required from the plug. 

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Selecting the optimal blocking plug for your job can mean a world of difference. Savvy and proper use of the correct pipe plug can make or break the profit on a job. Many plug failures are simply due to selecting the wrong type or model of plug. We can help you select the optimal plug specific to your application and jobsite needs.

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Common applications for Stemar blocking include blocking sewer flow for pipeline rehabilitation, manhole repairs, wet-well style trash pump bypassing, blocking sewer odors & vapors, and riser-style water testing.

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Upon request we can include EPDM, Nitrile, Stainless Steel, and/or other materials to the blocking plug manufacturing process in order to add hydrocarbon and/or other chemically resistant properties to your custom plug.​ Chemical compositions, temperatures, PH levels, techniques and/or durations we receive to design and build your custom plugs will be held under complete confidentiality.