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
Aluminium bypass plug with zinc-plated T-handle, 9.7 in tall for 18 in pipe

Cherne

Cherne 272998 Bypass Plug 18 in 9.7 in H

SKU CH-M6MP-YQWV6

Installs inside 18 in pipes with a 9.7 in overall height and a 3/4 in NPT male bypass for water or air testing up to 20 ft of head or 8.7 psi

  • TypeOther
  • Handles up to 20 ft water head pressure
  • Withstands 8.7 psi air back pressure safely
  • Fits 18 in pipes from 17.7 to 18.3 in ID
  • 7 in overall height suits tight spaces
  • 3/4 in NPT male bypass enables flow control

18-Inch Bypass Plug with T-Handle

The Cherne 272998 bypass plug fits 18-inch pipes with an inside diameter between 17.7 and 18.3 inches. A zinc-plated steel T-handle and aluminum plate provide the mechanical seal inside the pipe. The unit stands 9.7 inches tall overall.

For Pipeline Testing and Temporary Shut-Off

This plug suits crews conducting low-pressure air or water tests on 18-inch lines. It is not for high-pressure applications beyond 8.7 psi air or 20 feet of water head. Buyers needing a larger pipe size or higher back-pressure rating should look at other models.

8.7 PSI Maximum Air Back Pressure

The air-test limit of 8.7 psi determines whether this plug meets the job specification. Water-head capacity reaches 20 feet. The 3/4-inch male NPT bypass connection allows fluid transfer or monitoring while the line is sealed.

Highlights

  • Handles up to 20 ft water head pressure
  • Withstands 8.7 psi air back pressure safely
  • Fits 18 in pipes from 17.7 to 18.3 in ID
  • 7 in overall height suits tight spaces
  • 3/4 in NPT male bypass enables flow control

Specifications

BrandCHERNE
TypeOther

Questions about this item

What pipe inside diameter range must my pipe have for the 272998 bypass plug to seal?

The plug seals on pipe inside diameters from 17.7 in to 18.3 in, matching an 18 in nominal pipe size.

Will the 3/4 in NPT male bypass thread on this plug connect to my existing 3/4 in NPT female fittings?

Yes, the bypass connection is a 3/4 in NPT male thread, so it mates directly with standard 3/4 in NPT female fittings.

How can I verify the plug is holding after installation?

Apply air up to 8.7 psi or water up to 20 ft of head and confirm no pressure drop or leakage at the bypass and seal.

Also in this aisle

People compared these

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