Cherne® I-Series® Muni-Ball® Plugs

Cherne® I-Series® Air-Loc® Plugs are designed for line acceptance tests and leak location testing. I-Series plugs feature mechanically bonded rubber and end plates, eliminating failures from chemical bonding. I-Series pneumatic test plugs are made of tough, tear-resistant natural rubber with an aluminum end plate that minimizes rust and corrosion. Its field replaceable pressure relief valve prevents over-inflation. Color-coded inflation ports match Air-Loc's hose and panel system. Cherne Industries is a global leader in pipe plug, blocking and testing.

Available in 4 variations

Key Features & Benefits

24-60 in. I-Series® Muni-Ball® Plug
Optimized design offers improved performance and safety
Mechanically bonded rubber and end plates eliminate failures from chemical bonding

Specifications

Brand:	Cherne
Product Type:	I-Series Muni-Ball
Chain Eye Bolts:	3/4 in.

Inflation Pressure:	25 psi (1,7 bar)
Maximum Back Pressure:	6 psi
Usage Range:	20.5 in. - 60.5 in. (520 - 1537 mm)
Deflated Diameter:	20.77 in.
Deflated Length:	88 in. (2235 mm)
Inflation Thread:	0.25in. & 0.5 in.
Plug Type:	Blocking

More Specifications

Technical Resources (3)

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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.