alarm point at 1.0 ppm to ensure compliance for boilers rated above
3150 gram per second (g/s) 25,000 lb/hr.
b.
Total Solids Monitor/Controller: Provide a continuous monitor and
controller (when required) to control the concentration of
dissolved solids and treatment chemicals in the water for boilers
rated above 3150 g/s 25,000 lb/hr.
c.
Water Meter: Provide a [_____] mm inch cold water meter on each
softener unit.
d.
Ion Exchange Resin: High capacity, polystyrene base, sulfonated
synthetic type except that the exchange capacity shall be not less
than 2 kg per cubic meter 30 kilograins per cubic foot at a salt
dosage of 240 kg per cubic meter 15 pounds per cubic foot.
e.
Tank Sizing: Minimum acceptable bed depth of 760 mm 30 inches;
maximum acceptable bed depth of 1830 mm 72 inches. Base reactor
tank sizes on allowing a freeboard above the resin bed of not less
than 75 percent of the resin bed depth, and flow rate between 1.11
and 7.14 L/s per cubic meter 0.5 and 3.2 gpm per cubic foot of
resin.
2.9.8.4
Brine Storage System
Provide a complete brine storage system including fiberglass storage tank,
sight level gage, bulk salt delivery tube, internal distribution system,
level control system, tank vent with dust collection system, top and side
manholes, access ladder, and other required appurtenances.
2.9.8.5
Brine Storage System Accessories
Provide the following accessories:
a.
Steel holddown lugs securely bonded to the tank in adequate number
to properly anchor tank to concrete base;
b.
Side bottom flanged drain not less than 100 mm 4 inches in
diameter;
c.
Side and top manholes not less than 560 mm 22 inches in diameter;
d.
Flanged top connections for delivery pipe and vent;
e.
Ladder for access to top manhole;
f.
Water inlet connection;
g.
Brine outlet connection;
h.
Level control system; and
i.
Sight level gage.
2.9.8.6
Storage Tank
Filament wound fiberglass with flat bottom and domed top as recommended by
the manufacturer for brine storage. Tank shall be [_____] meters feet
[_____] mm inch in diameter by [_____] meters feet[_____] mm inch wall
SECTION 15511N
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