To install the gasket correctly in the groove in the bell, it must be uniformly distributed around the interior of the bell circumference. To do this, the gasket must be looped as it is initially placed in the bell. As a general rule:

4″ through 12″ gaskets generally require one loop. In cooler weather it may be easier to install the 10″ and 12″ gaskets using two loops placed at the twelve and six o’clock positions.

14″ through 20″ gaskets generally require two loops but three may be necessary, placed at the twelve and six o’clock positions.

24″ through 36″ gaskets generally require four loops, spaced approximately 90° apart. Put the bottom loop in first to prevent debris from being introduced into the joint.

42″ and 48″ gaskets generally require six loops, spaced equally around the circumference of the bell. Put the bottom loop in first to prevent debris from being introduced into the joint.

54″ through 64″ gaskets generally require eight loops, spaced equally around the circumference of the bell. Put the bottom loop in first to prevent debris from being introduced into the joint.

In cooler weather, it is usually a good idea to warm the gaskets before trying to install them or store them in a warm environment.

Never lubricate the gasket or gasket groove prior to installation of gasket into the bell.