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Mechanical pipe plug, 3 inch, natural rubber body with galvanised steel plate

Cherne

Cherne 269921 3 in Mechanical Pipe Plug Trap

SKU CH-GPSK-PSXAV MPN 269921

Mechanical pipe plug seals 3-inch pipes with 28 psi air and 65 ft water back-pressure ratings

  • Product typeDrain Components
  • Seals 3 in pipes with natural rubber durability
  • Fits 2.73 to 3.2 in inside diameters
  • Holds 28 psi air back pressure
  • Withstands 65 ft water head pressure
  • Galvanised steel plate resists corrosion

Mechanical pipe plug for 3-inch pipes

The Cherne 269921 is a mechanical pipe plug designed to seal 3-inch pipes during testing or maintenance. It fits pipe inside diameters from 2.73 to 3.2 inches and uses a natural rubber sealing element with galvanised steel plates. The plug is new and ready for immediate use on site.

For pressure testing and temporary blockage

Plumbers and contractors performing air or water pressure tests on 3-inch lines will find this plug suitable. It holds up to 28 psi of air back pressure and 65 feet of head for water. Buyers needing a plug for larger or smaller pipe diameters, or those requiring a bypass connection for flow-through testing, should look at other models.

Sealing range decides fit

The single specification that determines whether this plug works is the pipe inside diameter range of 2.73 to 3.2 inches. Measure the actual pipe ID before ordering; if it falls outside this window the plug will not seal.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 76% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameCherne Industries
Model name269921
Product typeDrain Components

Questions about this item

What pipe inside diameter range does the 3 in mechanical plug fit?

The plug seals pipes with an inside diameter from 2.73 in to 3.2 in.

How do you expand the natural rubber sealing element and what step is often missed?

Tighten the centre bolt to press the rubber against the pipe wall; the step often missed is re-tightening after the rubber relaxes.

When should the natural rubber sealing element be replaced?

Replace the rubber when it cracks, hardens or no longer holds the rated 28 psi air or 65 ft water back-pressure.

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