Carlon Multi-Gard Installation Procedures - Manual (Page 5)

MULTI-GARD     INSTALLATION PROCEDURES
www.carlonsales.com
o
Industry standard outer duct in Type C is suitable for direct burial.
o
Type 40 outer shell and Type 80 outershell are available where
extra protection is necessary.
o
Spacers inside outershell allow PVC innerduct internal movement
allowing for more flexibility.
Procedures:
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 necessary, 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. 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
Gross Automation (877) 268-3700 · www.carlonsales.com · [email protected]