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Cherne 8" Muni Ball Plug, 3" Bypass
The Cherne 8" Muni-Ball pneumatic plug with 3" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 286.85
Cherne 4" Muni Ball Plug, 3/4" Bypass
The Cherne 4" Muni-Ball pneumatic plug with 3/4" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 188.02
Cherne ® 4-6" Multi-Size Underground Muni-Ball ® Plug 3/4" Bypass
The Cherne 4-6" Muni-Ball pneumatic plug with 3/4" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 261.50
Cherne ® 12 in. Muni-Ball ® Plug, 3 in. Bypass
The Cherne 12" Muni-Ball pneumatic plug handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles. Tethers to full...
$ 532.34
Cherne 6" Muni-Ball Plug, 1-1/2" Bypass
The Cherne 6" Muni-Ball pneumatic plug with 1/2" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 234.75
Cherne 2" Muni-Ball Plug, 1/8" Bypass
The Cherne 2" Muni-Ball pneumatic plug with 1/8" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 184.18
Cherne ® I-Series Muni-Ball ® Plug 12-24 in w/ 3 in Bypass
The Cherne 12-24 Muni-Ball pneumatic plug handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles. Tethers to full...
$ 1,757.12
Cherne ® 10 in. Muni-Ball ® Plug, 3 in. Bypass
The Cherne 10" Muni-Ball pneumatic plug handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles. Tethers to full...
$ 378.91
Cherne ® 12" Aluminum T-Handle Gripper ® Plug (Non Bypass)
The Cherne 12" Gripper bypass plug isolates pipe sections while maintaining controlled flow — essential for cleanout testing and live-line repairs. Threaded aluminum bypass nipple, mechanical T-handle expansion. Natural rubber...
$ 454.67
Cherne ® I-Series Muni-Ball ® Plug 6-12 in w/ 1 in Bypass
The Cherne 6-12 Muni-Ball pneumatic plug handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles. Tethers to full...
$ 747.14
Cherne 15"-16" Muni Ball Plug, 3" Bypass
The Cherne 15"-16" Muni-Ball pneumatic plug with 3" bypass handles municipal sewer line testing, flow control, and isolation. Available in urethane-pillow (lightweight, flexible, chemical- and petroleum-resistant) and natural rubber styles....
$ 840.53
Cherne 2" Iron Grip Bypass Plug, 13 PSI, 3/8" Bypass
The Cherne Industries 2" single-size underground Test-Ball plug (13 PSI) blocks flow for sanitary and storm sewer testing, isolation, and back-plug air tests. Natural rubber construction expands to seal round...
$ 25.13Blocking and Bypass in One Place
Whether you need to completely isolate a pipe section for pressure testing or divert flow around a repair zone, Cherne pneumatic plugs are the contractor’s standard. We carry both product lines so you can source everything from a single supplier with one shipment.
Product Lines
Blocking (Test-Ball & I-Series) — Complete pipe isolation. Zero flow. For pressure testing, smoke testing, and construction shutoff.
Bypass (Muni-Ball) — Seal with flow-through. Diverts active sewer flow around the work zone through a bypass channel. For repair and replacement work on active lines.
Also Available
Mechanical plugs — Gripper and Econ-O-Grip plugs that seal by hand-tightening, no inflation needed. Faster for routine drain testing.
Contractor Pricing
Call (866) 514-3684 for pricing on volume and recurring orders. We work with plumbing contractors, pipeline companies, and municipal crews nationwide.
FAQ
What are pneumatic pipe plugs used for?
Pneumatic pipe plugs are primarily used for testing, isolating, or blocking off sections of pipelines. They are frequently employed in storm sewers, sanitary sewers, drain-waste-vent (DWV) systems, and other piping systems.
How do I choose the right size plug for my pipe?
To select the correct size of a pneumatic pipe plug, measure the inside diameter (ID) of the pipe in question. The plug size you choose should correspond to this measurement to ensure a proper fit.
Are these plugs suitable for residential use?
Yes, pneumatic pipe plugs can be used for residential purposes, especially in drain-waste-vent (DWV) systems. They help in performing tests, maintenance, or repairs by isolating specific sections of the pipes.
How do I safely inflate a pneumatic pipe plug?
Always refer to the manufacturer's instructions before inflating. Generally, you should inflate using a regulated air source and never exceed the recommended pressure.
What's the difference between bypass and blocking plugs?
Bypass plugs allow material to continue flowing through the pipe, ensuring there's no interruption in the system. In contrast, blocking plugs seal off the pipe completely, stopping all flow and material from passing through.
Can I use these plugs for long-term applications?
Pneumatic pipe plugs are generally designed for temporary applications, such as testing or maintenance tasks. For longer-term solutions, it's advisable to consult with the manufacturer or an industry expert.
How do I purchase multiple sizes in one order?
On our eCommerce platform, simply select the sizes you need and add them to your cart. You can adjust quantities and review your selections before finalizing your purchase.
Is there a maximum inflation pressure for these plugs?
Yes, every pneumatic pipe plug has a maximum inflation pressure. It's crucial to adhere to this limit to prevent damage to both the plug and the pipe, ensuring safe operations.
How long does shipping usually take after placing an order?
Shipping times vary based on the product and location. However, most orders are processed within 1-2 business days, and shipping details are provided at the time of checkout.
