Cherne® Pillow-Style Muni-Balls are made of heavy-duty elastic urethane, making them lightweight, flexible and chemical and petroleum resistant. They can fit through small diameter openings, and are ideal for blocking or bypassing flow.
- Equipped with a special 30' inflation hose, read-back line and gauge
- A repair kit is available to fix small tears and punctures
- Muni-Ball style plugs feature a bypass with threaded nipples on both ends
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.