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Yellow rubber pneumatic test ball plug with tire valve and tether chain

Cherne

Cherne 270059 Pneumatic Test Ball Plug 5 in

SKU CH-58VF-2Q2DK MPN 270059

Pneumatic test ball plug seals 4.6 to 5.25 in pipes with a 4.5 in deflated diameter and tire-valve inflation

  • Product typeDrain Components
  • Main materialHAWA
  • Pneumatic tire-valve inflation enables quick pipe sealing
  • Deflated 4.5 in diameter passes through 4.6 in minimum pipe ID
  • Textured rubber body resists slippage during pressure testing
  • Integrated ring-and-chain tether prevents loss in deep lines
  • Fits pipes up to 5.25 in maximum inside diameter

Pneumatic test ball plug for 5 in pipes

The Cherne 270059 is a pneumatic test ball plug designed to seal pipe interiors during pressure testing. It fits pipes with an inside diameter between 4.6 in and 5.25 in. The plug features a textured rubber body and a tire valve for inflation. A tether ring and chain are attached for retrieval.

Suitable for drain testing, not for bypass flow

Plumbers and contractors performing sewer or drain pressure tests will find this plug matches the required diameter range. It lacks a bypass connection, so it cannot be used where continuous flow must be maintained during the test. Users needing an integrated bypass should consider a different plug design.

Deflated diameter of 4.5 in determines entry

The deflated diameter of 4.5 in is the critical specification for inserting the plug through the pipe opening. Once inflated, it expands to seal against the pipe wall up to the maximum 5.25 in inside diameter. If the access point is smaller than 4.5 in, this plug will not enter.

How it compares

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

Price $66.99
Pricier than about 70% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameCherne Industries
Model name270059
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

What pipe inside-diameter range must I already have for the 270059 test ball plug to seal?

The plug seals pipes with an inside diameter between 4.6 in and 5.25 in, so your pipe must fall in that range.

Will the tire-valve air connection on this plug work with my existing hand pump?

Yes, the male tire-valve stem accepts standard Schrader pump heads used on most hand or compressor pumps.

How can I confirm the plug is inflated and holding pressure after insertion?

Inflate until the body feels firm, then watch the pressure gauge on your pump; a steady reading means the plug is holding.

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