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Cherne 273338 mechanical pipe plug stainless steel 3 in 2.86 to 3.25 in ID

Cherne

Cherne 273338 Mechanical Pipe Plug 3 in 2.86–3.25 in ID

SKU CH-0VJF-RKFKW MPN 273338

Mechanical pipe plug for 3 in pipes with 2.86–3.25 in ID, 2.64 in height, nitrile rubber and stainless steel, rated 2 psi air or 5 ft water head

  • Product typeDrain Components
  • Main materialHAWA
  • Fits 3 in pipes with 2.86–3.25 in ID range
  • Chemical-resistant nitrile rubber seals against 2 psi air and 5 ft water head
  • Stainless steel handle and plate resist corrosion during use
  • Compact 2.64 in height works in tight spaces
  • Model 273338 built for reliable mechanical pipe plugging

Mechanical pipe plug for 3-inch lines

The Cherne 273338 mechanical pipe plug fits inside 3-inch pipes with an internal diameter between 2.86 in and 3.25 in. It uses a stainless steel expansion mechanism and a chemical-resistant nitrile rubber sealing element. The overall height is 2.64 in. No water-fill port or hose is included.

Suitable for temporary pipe testing and blockage

This plug suits contractors and maintenance teams who need a reusable mechanical seal for pressure testing or flow isolation in 3-inch piping. It is not for buyers who need a bypass connection to divert flow, a padlock shackle for lockout procedures, or a sealing range outside the 2.86–3.25 in specification.

Maximum back-pressure rating decides the application

The plug withstands a maximum of 2 psi air back-pressure or 5 ft of water head. That pressure limit is the single specification that determines whether the plug is safe for a given test or isolation task. Exceeding it risks seal failure and pipe damage.

How it compares

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

Price $20.99
Cheaper than about 63% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameCherne Industries
Model name273338
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

Will the 3.25 in maximum inside diameter cover my 3 in pipe?

Yes, the plug fits any pipe with an inside diameter between 2.86 in and 3.25 in, so a 3 in pipe is within range.

Do I need a torque wrench to tighten the stainless steel handle?

No, hand tightening the stainless steel handle until the nitrile rubber expands against the pipe wall is enough; over tightening can damage the seal.

When should I replace the nitrile rubber sealing element?

Replace the rubber when it shows cracks, hardening or loss of elasticity, which reduces the 2 psi air and 5 ft water back pressure ratings.

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