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The Global Leader in Pipe Plugs & Testing

Some people cave under pressure – others thrive on it. We’ve been there with you in the manholes and trenches, and we’ll never stop developing innovative, safe, quality products to help get the job done. Through our world-leading test plugs and equipment, we are dedicated to delivering advanced solutions for waterworks and plumbing professionals everywhere.

Product Spotlight

Cherne i2-Series

Blocking, Flow-Through and Test Plug

Cherne® i2-Series plugs were made to meet the size and expansion range needs of global markets, with a robust, optimized design that improves safety and performance. Available in various configurations for blocking, flow-through and testing, i2-Series plugs are short in length, allowing for easy installation and use in constrained spaces. All i2-Series plugs are made of premium natural rubber with full body cording, offering rugged reliability and industry-leading quality.
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i2-Series Blocking Plugs

Cherne® i2-Series Blocking Plugs are designed for blocking flow for maintenance in sanitary and storm sewer systems.

i2-Series Flow-Through Plugs

Cherne® i2-Series Flow-Through Plugs offer a full bypass, allowing for both testing and monitoring of piping systems.

i2-Series Test Plugs

Cherne® i2-Series Test Plugs are designed for line acceptance tests and leak location testing.

Pneumatic Pipe Plugs

Cherne Pneumatic Pipe Plugs offer dependable, air-inflated sealing solutions for pipe testing and maintenance across a variety of sizes and applications. Engineered for safety and reliable performance, these plugs are ideal for conducting pressure tests, isolating sections of pipe, or temporarily blocking flow. Professionals trust Cherne Pneumatic Test Plugs to ensure they get the job done safely, efficiently, and with confidence.
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Mechanical Pipe Plugs

Cherne Mechanical Pipe Plugs provide durable, mechanically expanded sealing solutions for blocking and testing pipelines in plumbing and construction applications. Designed for dependable performance without the need for inflation, these plugs expand inside the pipe using a bolt or wing nut to create a tight, leak-resistant seal. Ideal for DWV and stack testing, isolating pipe sections, or temporarily sealing openings, Cherne Mechanical Pipe Plugs offer a simple, reliable solution professionals trust for safe and efficient pipe maintenance.
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The Cherne Story

In 1953, Cherne Industries created an innovative inflatable device for stack testing. Cherne’s pneumatic product offering expanded to include testing, maintenance and repair equipment for residential, commercial, industrial and municipal systems. Acquired by Oatey Co. in 1990, Cherne products are relied on by residential and commercial contractors and industrial and municipal engineers worldwide.

In 2024, Oatey acquired Lansas B.V. in the Netherlands, further cementing our position as the global leader in pipe plugs and testing. As our pipe plug business has grown, its focus remains constant – providing customers the most reliable and innovative testing, maintenance and repair equipment in the plumbing, waterworks and underground industries.

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