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Casing spacers are used to install carrier pipe inside the encasement
pipe to provide support around the periphery of the pipe, should the
pipe twist as it is pushed through the casing.
The spacers are of a projection type that has a minimum number of
projections around the circumference totaling the number of diameter
inches. For example, 8”
pipe shall have a minimum of 8 projections and 18” pipe shall have a
minimum of 18 projections.
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Casing spacers use double backed tape, provided with the spacers,
to fasten tightly onto the carrier pipe so that the spacers do
not move during installation. Installation
instructions are included with each shipment.
Casing spacers should have a span of 10 feet to 6-1/2 feet
dependant on the total load anticipated with the pipe full of liquid.
On sewer pipe, the maximum span should be 6-1/2 feet to prevent
sagging of the carrier pipe. The
maximum load should not exceed the load limits per spacer listed in the
brochure.
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