Smith-Blair 274 Bell Joint Leak Clamps provide a fast, economical means
of sealing or preventing leaks in cast iron bell and spigot caulked or
rubber ring joints. The design of the "Kee-Lok"®
gaskets and Bell-Spigot rings enables a single clamp to fit both caulked
and rubber ring joints on virtually all classes and brands of cast iron
or ductile iron pipe with a nominal size. they are also suitable for use
on AWWA C-900 PVC pipe (longer bolts are required). "Kee-Lok"®
gaskets are available in sizes up to 24" diameter only. (Excluding 14"
When the Bell Joint Leak Clamp is assembled on the pipe bell, the bell
ring and spigot ring are connected by bolts, and the gasket is captured
in a gasket cavity formed by the spigot ring, pipe spigot, face of the
pipe bell and the joint packing material. Tightening the bolts draws the
two bell spigot rings toward each other, compacting the rubber gasket against
the pipe spigot, face of the pipe bell and joint backing material to form
a tight seal.
Advantages of 274 Bell Joint Leak Clamps
Reduced Inventory - A single clamp fits virtually all classes and
brands of cast iron pipe in each nominal size.
Easy Installation - Fewer interlocking parts make installation quick
Corrosion Resistant Materials - Heavy cast ductile iron bell-spigot
rings and high strength low alloy steel bolts and nuts. (Heavy carbon steel
bell-spigot rings on 14" size only.)
No Loss of Service - Can be installed without interrupting the flow
in the pipeline.
"Kee-Lok" Gasket - Eliminates field cutting and the use of staples,
tongs or tape to hold the gasket in position.
The "Kee-Lok®" Gasket
The difficult and often inaccurate task of cutting the gasket in the field
is eliminated. There is no need for staples, tongs, tape or other clumsy
gadgets to join the gasket ends and hold them in position while assembling
the clamp. To install the gasket simply place on pipe and snap ends together.
The gasket is supplied with an extension piece which is left in place for
use on larger O.D. pipe, and removed for use on smaller O.D. pipe. Bell
Joint Leak Clamps in 14", 30" and 36" diameters are available with bias
cut gaskets only.
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