operating the boilers for a period of approximately 48 hours, wasting the
condensate.
3.10.2
Boiler Water Conditioning
The Contractor shall provide boiler water conditioning including chemical
treatment and blowdown during periods of boiler operation to prevent scale
and corrosion in boilers and in supply and return distribution systems from
the initial startup of the system, through the testing period, and to final
acceptance of the completed work but for at least 30 days of operation.
Approved chemicals and method of treatment shall be used.
TABLE I.
PIPE
kPa Service
Pressure
Material
Specification
Type
Steam
0-3500
Std. wt. black
ASTM A 53/A 53M
Type E
steel
Grade A
Condensate
0-1700
Extra strong
ASTM A 53/A 53M
Type E
return
black steel
Grade A
Copper pipe
ASTM B 42
[_____]
Boiler feed &
0-4100
Extra strong
ASTM A 53/A 53M
Type E
blowoff lines
black steel (2)
Grade A
Feedwater
0-860
Std. wt. black
ASTM A 53/A 53M
Type E
piping
steel
Grade A
Water
0-4100
Std. wt. black
ASTM A 53/A 53M
Type E
column (1)
steel (2)
Grade A
Vent & exhaust
0-170
Std. wt. black
ASTM A 53/A 53M
Type E
pipe
steel
Grade A
Compressed air
0-860
Std. wt. black
ASTM A 53/A 53M
Type E
steel
Grade A
Gauge piping
0-170
Copper tubing
ASTM B 88,
ASTM B 88M Type K
or L
0-4100
Black steel (2)
ASTM A 53/A 53M
Type E
Grade A
Fuel oil
0-1000
Copper tubing
ASTM B 88,
ASTM B 88M Type K
(No. 2)
or L
0-1000
Fiber reinforced
API Spec 15LR [_____]
plastic (FRP)
(Buried service
only)
Fuel oil
0-1000
Std. wt. black
ASTM A 53/A 53M
Type E
(Nos. 4,
steel
Grade A
5, & 6)
Control air
0-1000
Copper tubing
ASTM B 68M
[_____]
SECTION 15559A
Page 111
Previous Page
