forced draft fan, overfire air fan, boiler trim, blowdown valves,
safety valves and trim, and breeching. Ensure that the system
manufacturer coordinates the required instrumentation and control
logic with the controls and instrumentation supplier. Controls
and instrumentation are specified in VAMS Section 15901N CONTROLS
AND INSTRUMENTATION BOILER PLANT.
b.
Coal handling system, including but not limited to the following:
Track and reclaim hoppers, belt feeders, belt conveyors and tube
galleries, telescoping chute, flight conveyor, coal bunker, under
bunker conveyor and triple valves, coal scale, controls, coal
chutes and gates.
c.
Ash handling system including ash piping, fittings, intakes, ash
silo, separators, tertiary filter, [mechanical exhauster] [steam
exhauster, air washer-condenser], and rotary unloader.
d.
Stack system including steel stack, internal acid resistant lining
and external coating.
1.6.4
Certification of Backflow Preventer
Certificate of Full Approval or current Certificate of Approval for each
backflow preventer being provided for the project shall be from the
Foundation for Cross-Connection Control Research, University of Southern
California and shall attest that the design, size, and make of backflow
preventer has satisfactorily passed the complete sequence of performance
testing and evaluation for the respective level of approval. A Certificate
of Provisional Approval will not be acceptable in lieu of the above.
1.6.5
Modification of References
In the API publications referred to in this specification, the advisory
provisions shall be considered mandatory, as though the word "shall" had
been substituted for "should" and "suggested" wherever they appear.
1.6.6
Certificates
1.6.6.1
List of Equipment Manufacturers
Submit to the Contracting Officer a letter listing the equipment
manufacturers for the following equipment:
a.
Boilers and stokers;
b.
Boiler feedwater pumps;
c.
Coal car handling equipment;
d.
Induced draft fans;
e.
Coal handling equipment; and
f.
Ash handling equipment.
When the Contracting Officer determines that a manufacturer does not meet
the qualification or experience requirements of the specifications, the
Contractor shall submit, to the Contracting Officer, the name of another
manufacturer within 15 days of notification.
SECTION 15501N
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