We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cherne pneumatic test ball plug 4 inch rubber textured finish with tire valve and bypass

Cherne

Cherne 262048 Pneumatic Test Ball Plug 4 in

SKU CH-CH5N-VQJPP MPN 262048

Pneumatic test plug seals 3.25 to 4.25 in pipes at 22 psi air back-pressure

  • TypeDrain Components
  • MaterialHAWA
  • Inflates to seal pipes up to 4.25 in ID using 22 psi max air pressure
  • Deflates to 3.13 in diameter for insertion through 3.25 in minimum openings
  • Female tire-valve air connection enables quick inflation with standard equipment
  • 3/4 in female NPT bypass allows flow diversion or pressure monitoring during tests
  • Textured rubber body with eyebolt tether resists slippage and aids retrieval

Pneumatic test ball plug for 4 in pipes

The Cherne 262048 is a pneumatic test ball plug designed to seal pipes with an inside diameter between 3.25 in and 4.25 in. It inflates through a standard tire-valve connection and includes a 3/4 in female NPT bypass for drainage or monitoring. The textured rubber body resists slipping during pressure testing.

Suited for drain testing.

Plumbers and contractors performing low-pressure air tests on 4 in drain lines will find this plug matches the required diameter range and 22 psi back-pressure rating. It is not intended for continuous service, high-pressure water mains, or pipes outside the stated size limits.

22 psi maximum air back-pressure rating

The plug holds a maximum of 22 psi of air back-pressure, which determines whether it meets the test specification for a given job. Exceeding this pressure risks seal failure, so verify the test pressure before selecting this model.

Highlights

  • Inflates to seal pipes up to 4.25 in ID using 22 psi max air pressure
  • Deflates to 3.13 in diameter for insertion through 3.25 in minimum openings
  • Female tire-valve air connection enables quick inflation with standard equipment
  • 3/4 in female NPT bypass allows flow diversion or pressure monitoring during tests
  • Textured rubber body with eyebolt tether resists slippage and aids retrieval

Specifications

TypeDrain Components
MaterialHAWA
BrandCherne Industries
Model262048

Questions about this item

Does the 262048 pneumatic test ball plug ship with any inflation hose or pressure gauge included?

The plug itself is the only item supplied; an inflation hose and pressure gauge must be sourced separately.

When should I choose the 262048 model over other sizes in the Cherne range?

Select the 262048 when the pipe inside diameter falls between 3.25 in and 4.25 in; it is sized for a nominal 4 in pipe.

What does the 22 psi air back-pressure rating mean during an actual line test?

It indicates the plug can hold up to 22 psi of air pressure from behind without dislodging when properly inflated and seated.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.