Carlon PVC Multi-Gard - Low Res - Manual (Page 3)

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8
Multi-Gard ® PVC – Installation
All PVC Trenching installation allows
Multi-Gard to be placed in the trench
one section at a time or over the
trencher for continuous feed.
Open trenching with Type C Multi-Gard
is recommended for direct burial or
concrete encased applications.
• Install one section at a time.
• Multiple-cells are installed as soon
as product is placed.
• Economical installation with
installation speed as fast as the
trencher.
• Easy installation with standard
equipment.
• Gasketed coupling body prevents
conduit pulling apart during
installation.
• Industry standard outer duct in
Type C is suitable for direct burial.
• Schedule 40 outershell and
Schedule 80 outershell are
available where extra protection
is necessary.
• Spacers inside outershell allow
PVC innerduct internal movement
allowing for more flexibility.
Paved Areas In paved areas, the surface should be carefully
cut to prevent unnecessary excessive width at the top of the
trench and help reduce the amount of surface to be repaved.
Trench Width For economical operation, particularly where
paving is involved, the trench width should be no greater than is
needed to provide adequate working space. Generally, this
dimension is controlled by the types of excavating equipment
used. As a minimum, the trench must be 5 inches wider than the
width of the conduit structure where backfill will be used and 3
inches wider where concrete encasement will be used.
Individual job specifications will dictate trench width.
Trench Bed Grade and level the trench bed. Where neces-
sary, provide sand and/or other granular backfill as bedding
material so the conduit will be evenly supported over the length
of each section.
Assembly On Top Of The Trench After preparing the
trench, the Multi-Gard can be assembled on top of the ground
outside of the trench by following the directions described on
page 5. Once joined together, the Multi-Gard can then be laid
gently into the trench. Backfill according to the job specifications.
Trench Feeding Multi-Gard Using Rollers This
procedure involves assembling the Multi-Gard above the
ground. After the first four or five lengths are assembled, place
on top of the trenching machine. The remainder of the duct can
be attached to the first section and assembled ahead of the
trencher on the ground directly above the intended place for the
trench. As the trencher advances forward, the Multi-Gard will
lay itself into the trench behind. Once placed in the trench,
backfill according to the job specification.
Trenching
Features Procedures
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