Provide orifice flanges with pressure taps, square edged stainless steel
paddle orifice plate. The orifice plate shall be concentric type, of 3 mm
0.125 inch thickness and shall meet ASME Standards. Orifice shall be sized
for 10 kPa 40 inch water column differential at a full scale flow rate of
[_____] L/s SCFM at compressor based on 827 kPa (gage) 120 psig upstream
pressure. Static gage pressure measurement device of the recorder shall
have a range of zero to 1379 kPa (gage) 200 psig. Provide copper
interconnecting tubing between the pressure taps and the recorder as part
of this measurement and recording package. Provide a two-pen recorder for
the measurement station. Pens shall record pressure (0 to 1379 kPa (gage)
200 psig range) and air flow (0 to [_____] L/s SCFM). Recorder shall be
electric drive and housed in dust-tight steel cabinet. Charts shall be 305
mm 12 inch diameter with evenly divided graduations. Drive shall be 7 day
circle. Provide continuous flow integration of a 7 digit counter type.
Pens shall be supplied with long-life cartridges and capillary supply.
Chart case shall be internally illuminated. Access to charts shall be
through front access window door. Calibrated overall accuracy of the
recorded measurements shall be within plus or minus 1.0 percent of full
scale. Furnish a supply of 400 charts with the recorder.
2.5
CARBON MONOXIDE MONITOR
**************************************************************************
NOTE: Include carbon monoxide monitor in systems
which are used for breathing air per DM 3.5, Section
3.
**************************************************************************
The carbon monoxide (CO) monitor unit shall be of the pressure type with
attached sampling system. The unit shall be solid state type operation, 2
to 50 ppm range, CO indicating, with provisions for milliamp signal to
remote recorder, adjustable set point, and normally open/normally closed
contacts for remote signal. Power shall be 120 volt, single phase, 60
hertz with power cord and plug. Response time normally 2 minutes per
sample/purge. Unit shall be mounted in a gasketed enclosure with face gage
indication CO readings.
2.5.1
Sampling System
Sampling system shall include shutoff valve filter/regulator, pressure
gage, manual drainer, and line humidifier set at 50 percent. Draw sample
from compressor discharge.
2.5.2
Test System
Test system shall include calibration gas (20 ppm CO) cylinder test gas
(200 ppm CO) cylinder, and calibration connectors with quick disconnect.
2.6
SOURCE QUALITY CONTROL
2.6.1
Factory Test Procedures
The completely assembled air compressor package, including the actual
contract drive motor, intercoolers, lubrication system, and control panel
shall be subjected to performance tests, balance tests, and sound level and
run-in tests. Unit shall comply with guarantee requirements applying
engineering adjustments to guarantee conditions. Test shall be certified
by the manufacturer. Test shall be run on the manufacturer's test stand
using driver for this contract. Tests shall be in accordance with ASME PTC
SECTION 15213N
Page 25
Previous Page
