< 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.

Available in 22 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

Brand:	Cherne

More Specifications

Technical Resources (2)

• Safety & Instruction Manual
• Sell Sheet

More Downloads

Available in 22 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.

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