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Mechanical locking plug for 6 in pipe, stainless steel handle, plastic body, 3.98 in high

Cherne

Cherne 271691 Mechanical Locking Plug 6 in trap

SKU CH-WKBJ-3NXG4 MPN 271691

Mechanical locking plug seals 6 in pipes from 5.77 in to 6.08 in ID, withstands 15 ft water head and 6.5 psi air pressure, 3.98 in tall with stainless handle

  • Product typeDrain Components
  • Mechanical lock seals 6 in pipes up to 6.08 in ID
  • Stainless steel handle resists corrosion during repeated use
  • 5 psi air back-pressure rating protects test integrity
  • 15 ft water head capacity handles vertical pipe columns
  • 98 in height fits tight access points

Mechanical locking plug for 6 in pipes

The Cherne 271691 is a mechanical locking plug designed for 6 in pipe sizes. It fits inside diameters between 5.77 in and 6.08 in. The plug uses a stainless steel handle and a plastic sealing plate. It is intended for professionals who need temporary pipe isolation during testing or maintenance.

Stainless handle and plastic plate with 3.98

The overall height of 3.98 in allows the plug to sit inside the pipe without protruding far. A padlock shackle diameter of 3 1/2 in lets users secure the plug against accidental removal. No water fill port or hose is included, so inflation equipment must be sourced separately. The stainless handle resists corrosion in wet environments.

Replaces inflatable plugs when back pressure is low

This mechanical plug replaces inflatable alternatives where maximum air back pressure stays at or below 6.5 psi and water back pressure does not exceed 15 ft of head. The jump is worth it when a lockable, tool-free installation is preferred over inflating and monitoring pressure. It is not for buyers who need higher pressure ratings or integrated inflation fittings.

How it compares

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

Price $54.99
Pricier than about 64% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameCherne Industries
Model name271691
Product typeDrain Components

Questions about this item

What pipe inside diameter range does the 6 in mechanical locking plug cover?

The plug fits pipe inside diameters from 5.77 in to 6.08 in for a 6 in nominal pipe size.

What is the overall height and padlock shackle diameter of the plug?

The overall height is 3.98 in and the padlock shackle diameter is 3 1/2 in.

How is the plug installed and what common step is missed?

Insert the plug into the pipe, expand the mechanical locking mechanism until it grips the pipe wall, then secure with a padlock through the shackle; the step often missed is fully tightening the expansion before applying the lock.

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