binding from deposits and damage from misalignment. Bonnet guides
shall be removable. Design damper so that a damper blade can be
replaced without opening the frame.
b.
Guillotine Damper Bonnet Seal: Provide bonnet seal to effectively
seal against atmospheric leakage under normal operating conditions.
c.
Guillotine damper drive shall be a positive dual endless chain
drive capable of driving damper in both directions. Chain drive
headshaft shall have sufficient torsional rigidity to prevent
binding of blade if the blade is stalled. Damper shall be motor
operated with manual override. Design drive mechanism to prevent
back driving of motor. Entire drive mechanism shall be of a
simple design and require no routine maintenance other than
inspection. Chain shall be capable of operating up to the stall
torque of the damper drive motor.
d.
Electric Motor: Shall be [_____] volt, [_____] phase, 60 Hz,
[totally enclosed, fan cooled] [open drip-proof], not less than
[_____] kW hp, as specified under "Motors and Drives" in this
section. Provide removable, totally enclosed chain guard.
2.7.5
Sampling Ports
Weld two sampling ports to [breeching] [stack] at 90 degrees apart. Each
port shall consist of a section of 100 mm 4 inch diameter steel pipe with
threaded cap.
2.8
FUEL OIL SYSTEM
Provide fuel oil system as specified in Section 15192N FUEL OIL PIPING,for
tanks located above grade, and Section 13216 UNDERGROUND PETROLEUM TANKS,
for tanks below grade.
2.9
MISCELLANEOUS EQUIPMENT
2.9.1
Condensate Receiver
Provide a [horizontal] [vertical] type tank not less than [_____] meters
feet [_____] mm inches in diameter by [_____] meters feet [_____] mm inches
[long] [high] overall with a storage capacity of not less than [_____]
liters gallons. Tank shall be constructed of welded steel plate not less
than 10 mm 3/8 inch thick. Provide condensate tank with a 600 mm 24 inch
diameter manway, dual gage glasses with protective guards, saddles, and
other connections as indicated.
2.9.1.1
Coating
Surface blast interior of tank to bare metal and coat with a baked-on
phenolic lining or corrosion resistant liner consisting of a resin and
hardener suitable for immersion in water at not less than 121 degrees C 250
degrees F. Coat tank exterior with one shop coat of manufacturer's
standard primer rated for service of not less than 121 degrees C 250
degrees F.
2.9.1.2
Accessories
Provide the condensate receiver with the following:
SECTION 15511N
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