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Cherne test ball plug with ring and chain, 4.5 in deflated length, textured surface

Cherne

Cherne 270108 Test Ball Plug Ring & Chain 4.5 in Deflated Length

SKU CH-ZPDN-JCMXD MPN 270108

Inflatable test plug with ring-and-chain tether seals 2.34–2.75 in pipes and deflates to 2.3 in diameter by 4.5 in length

  • Product typeDrain Components
  • Fits pipes from 2.34 in to 2.75 in ID
  • Deflated diameter 2.3 in for easy insertion
  • Tire-valve air connection for standard inflators
  • Ring-and-chain tether prevents loss in pipe
  • Textured body surface improves grip during placement

Test Ball Plug Specifications

The Cherne 270108 is a pneumatic test plug designed for sealing pipe interiors during pressure testing. It features a textured body surface and a tire valve air connection for inflation. The unit includes a head tether with ring and chain for secure handling and retrieval.

Fit Range and Limitations

This plug suits pipes with an inside diameter between 2.34 in and 2.75 in, corresponding to a maximum nominal pipe size of 2 1/2 in. It will not seal pipes smaller than the minimum diameter or larger than the maximum stated size. Installers needing a bypass connection or a different tether style must select another model.

Deflated Dimensions

The plug measures 2.3 in deflated diameter and 4.5 in deflated length, allowing insertion through cleanouts and tight openings before inflation. These collapsed dimensions determine whether the plug can reach the test location inside the pipe run.

How it compares

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

Price $29.99
Typical for this category: the median of 4,240 items is $31.99.

Specifications

Product
Brand nameCherne Industries
Model name270108
Product typeDrain Components

Questions about this item

Does the Cherne 270108 test ball plug come with the ring and chain attached, or must they be purchased separately?

The plug includes a head tether connection with ring and chain already fitted, so no separate tether parts are required.

Which pipe size should I match to the 2.34 in minimum and 2.75 in maximum inside diameter range?

Choose this plug when the pipe inside diameter falls between 2.34 in and 2.75 in; it is rated for a maximum pipe size of 2 1/2 in.

What does the 4.5 in deflated length mean when the plug is inserted into a pipe?

The plug measures 4.5 in long in its deflated state, allowing it to pass through the opening before inflation seals the 2.3 in deflated diameter against the pipe wall.

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