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Yellow ABS plastic mechanical pipe plug with rubber seal, 2.2 in high, model 270188

Cherne

Cherne 270188 Mechanical Pipe Plug 4 in

SKU CH-PP5B-1GCH7 MPN 270188

Mechanical pipe plug seals 4 in pipes with ABS plate and rubber seal, rated for 17 psi air or 40 ft water head

  • TypeDrain Components
  • MaterialHAWA
  • Mechanical plug seals 4 in pipes from 4.22 to 4.6 in ID
  • Withstands 17 psi air pressure for reliable line testing
  • Holds 40 ft water head for hydrostatic leak checks
  • Low 2.2 in profile fits tight access points easily
  • ABS plate with rubber seal resists corrosion in drainage systems

Mechanical Pipe Plug 4 in

The Cherne 270188 mechanical pipe plug is designed for temporary sealing of 4 inch diameter pipes during testing and maintenance. It fits pipe inside diameters from 4.22 in to 4.6 in and uses an ABS plate with rubber sealing elements. The unit stands 2.2 in tall and operates without a bypass connection or water fill port.

Suited for pressure testing and line isolation

This plug suits technicians who need to block flow in 4 inch lines at up to 17 psi air pressure or 40 ft of head water pressure. It is not for permanent installations, lines requiring a bypass connection, or pipes outside the stated diameter range.

Diameter range and pressure rating decide fit

The single specification that decides whether this is the right part is the pipe inside diameter range of 4.22 in to 4.6 in combined with the maximum back pressure ratings of 17 psi for air and 40 ft of head for water.

Highlights

  • Mechanical plug seals 4 in pipes from 4.22 to 4.6 in ID
  • Withstands 17 psi air pressure for reliable line testing
  • Holds 40 ft water head for hydrostatic leak checks
  • Low 2.2 in profile fits tight access points easily
  • ABS plate with rubber seal resists corrosion in drainage systems

Specifications

TypeDrain Components
MaterialHAWA
BrandCherne Industries
Model270188

Questions about this item

What pipe inside-diameter range does the 4 in mechanical plug seal?

It seals pipes with an inside diameter between 4.22 in and 4.6 in, matching the stated 4 in pipe size.

What clearance is needed for the plug's overall height?

The plug is 2.2 in tall, so allow at least that much vertical space inside the pipe or fitting.

How is the mechanical plug installed and what step is often missed?

Insert the plug to the pipe end, then tighten the mechanism until the rubber seal expands fully; the common error is stopping before the seal locks against the wall.

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