positive means.
2.4.2
Pipe Sleeves
Where piping passes entirely through walls, ceilings, roofs, floors, and
partitions, provide sleeves of sufficient length to pass through the entire
thickness. Secure sleeves in proper position and location. [Provide [not
less than 6.50 mm 0.25 inch space between exterior of piping and interior
of sleeve or drilled holes.] [25 mmone inch minimum clearance between
exterior of piping and interior of sleeve or drilled holes and firmly pack
space with mineral wool insulation.] Caulk both ends of sleeve or drilled
holes with plastic waterproof cement which will dry to a firm but pliable
mass; or provide a segmented elastomeric seal.] [Provide 25 mm one inch
minimum clearance between exterior of piping and interior of sleeve or
core-drilled hole and caulk both ends of sleeve or core-drilled hole with
plastic waterproof cement which will dry to a firm but pliable mass, or use
a segmented elastomeric seal.] In fire walls and fire floors, caulk both
ends of sleeves or core-drilled holes with UL listed fill, void, or cavity
material.
2.4.2.1
Sleeves Through Masonry and Concrete
Provide ASTM A 53 Schedule 40 or Standard Weight, hot-dipped zinc coated
steel pipe sleeves. Extend sleeves in floor slabs 76 mm 3 inches above the
finished floor. When cavities in core-drilled holes are completely grouted
smooth, sleeves may be omitted.
2.4.2.2
Sleeves Through Other Than Masonry and Concrete
Provide hot-dipped galvanized steel sheet having a nominal weight of not
less than 4.40 kg per sq meter 0.90 pounds per square foot.
2.4.3
Pipe Hangers and Supports
Provide MSS SP-58 and MSS SP-69, Type 1, of the adjustable type, except as
modified herein or indicated otherwise. Use Type 21, 28, 29, or 30 clamps
for attachments to steel W or S beams. Use Type 20 clamp with a beam clamp
channel adaptor for attachments to steel angles and channels (with web
vertical). Use drilled holes on centerline and double nut and washer for
attachments to steel channel (with web horizontal). Use Type 18 insert or a
drilled hole with expansion anchor for attachments to concrete.
Attachments to wood shall be as indicated. Hanger rods and attachments
shall be full size of the hanger threaded diameter. Provide steel support
rods.
2.5
PRESSURE RELIEF DEVICES
Provide each section of closed piping with an approved pressure relief
device designed to operate at 3102 kPa (gage) 450 psig.
2.6
HAND HOSE REEL STATIONS
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NOTE: Omit if hose stations are not to be provided.
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Provide each station complete including [15] [23] meters of 20 mm [50] [75]
feet of 0.75 inch high-pressure hose, hose reels, squeeze-type
quick-opening valve, discharge nozzle, and horn. Securely mount hose reels
SECTION 13962N
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