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Cherne Muni Ball Plug natural rubber cylindrical plug for pipe testing

Cherne

Cherne 265048 Muni Ball Plug 4-39/64 In Tubing

SKU CH-0F79-N16GB

A natural rubber test ball that seals pipe sections from 3.97 inches to 6 inches for water flow blockage or sewer air testing up to 40 feet of head

  • MaterialHAWA
  • Blocks water flow in pipes up to 6 in. diameter
  • Withstands 40 ft. of head back pressure
  • Natural rubber construction seals irregular surfaces
  • Fits tubing with 3.97 in. minimum inside diameter

Cherne 265048 Muni Ball Plug for 4-39/64 In Tubing

The Cherne 265048 Muni Ball Plug is a natural rubber test ball designed to block water flow or serve as a back plug for sewer air testing. It fits nominal 4-39/64 inch tubing with a minimum diameter of 3.97 inches and a maximum diameter of 6 inches. Plumbers and municipal workers use it for temporary pipeline isolation during maintenance or pressure checks.

Thermals noise and power draw in normal use

This passive rubber plug generates no heat, noise, or power draw during operation. It withstands up to 40 feet of head back pressure without active cooling or energy input. Performance depends solely on correct sizing and proper inflation within the specified diameter range.

Highlights

  • Blocks water flow in pipes up to 6 in. diameter
  • Withstands 40 ft. of head back pressure
  • Natural rubber construction seals irregular surfaces
  • Fits tubing with 3.97 in. minimum inside diameter

Specifications

MaterialHAWA
BrandCHERNE

Questions about this item

How do I install the Cherne 265048 Muni Ball Plug into a 4-39/64 inch tube, and what step is commonly missed?

Insert the natural rubber plug into the pipe, inflate to seal against the 3.97 to 6 inch range, and verify it holds 40 ft of head pressure; the step often missed is confirming the seal before applying full back pressure.

What maintenance or replacement will the Cherne 265048 Muni Ball Plug need after repeated sewer air testing use?

Inspect the natural rubber body for cracks, abrasion, or loss of elasticity after each test; replace the plug if it no longer seals at the rated 40 ft of head pressure or shows permanent deformation.

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