< Bypass Plugs

Cherne® I-Series® Muni-Ball®

Cherne® I-Series Muni Ball Plugs are designed to meet the needs of U.S. and international markets in terms of size and expansion range. Cherne Industries is a global leader in pipe plugs and testing.

UPC: 675115614482
Part #: 614488

Available in 34 variations

Key Features & Benefits

• Superior expansion range
• Full body cording for added durability
• Small deflated diameters
• All plugs through 24-60 in. easily fit through a 24 in. manhole frame
• 48-72 in. & 54-96 in. plugs fit through a 36 in. opening
• Aluminum end plates minimize rust
• 3/4 in. eyebolts on 15-32 in. and larger plugs
• Pressure relief valve on 15-32 in. and larger protects plugs from over inflation
• Flexible bypass hoses

Specifications

Product Type:	I-Series Muni-Ball
Bypass Diameter:	4 in. M
Nominal Size:	24 in. - 48 in. (600 - 1200 mm)
Deflated Length:	68 in. (1730 mm)
Maximum Back Pressure:	10.1 psi
Deflated Diameter:	20.83 in.
Inflation Thread:	1/4 in. & 1/2 in.

Inflation Pressure:	22 psi (1,5 bar)
Usage Range:	20 in. - 50 in. (510 - 1270 mm)
Chain Eye Bolts:	0.75 in. Eyebolt
Plug Type:	Bypass
Color:	Black
Weight:	209 lb.
Nominal Min:	24
Nominal Max:	48
Brand:	Cherne

More Specifications

Technical Resources (2)

• FAQ
• Safety & Instruction Manual

More Downloads

Available in 34 variations

Frequently Asked Questions

What is the shelf life for Cherne pneumatic plugs?

Cherne offers a 2 year warranty on all pneumatic plugs from date of manufacture, (plugs are post-dated by six months to allow for shelf time). If kept in controlled conditions (not exposed to sunlight and kept at temperatures between 0-125 degrees F) the pneumatic plugs remain in good condition for a longer period of time. Plugs should always be inspected for visual damage prior to every use.

What type of rubber is a Cherne pneumatic plugs made from?

All of Cherne’s pneumatic pipe plugs are made from natural rubber. The only exception is our yellow pillow plugs which are made from a polyurethane impregnated fabric.

How often should a pneumatic plug pressure be checked?

Inflation pressure should be checked a minimum of once every 4 hours while a pneumatic plug is in use.