36
DB Series Nitrogen Generator
DB5-20 Model
6.3 Normal Startup
Startup should only be performed once the generator has been properly installed,
according to this user guide, and Section 6.1 “Pre-Startup Procedure” has been reviewed
REFER TO FLOW SCHEMATICS SECTION OF THIS MANUAL FOR ADDITIONAL DETAIL.
1. Ensure the nitrogen outlet product control valve
(PCV 101)
is closed
2. Close the manual block valve (customer supplied and installed)
3. Open the manual vent valve (customer supplied and installed)
4. Once the compressed air system is pressurized, gradually open the manual isolation valve
at generator inlet (supplied by customer) to slowly pressurize the generator.
**IMPORTANT: FAILURE TO GRADUALLY OPEN INLET VALVE COULD DAMAGE THE GENERATOR.**
5. Once the generator is pressurized, gradually open the manual isolation valves connecting the
generator to and from the buffer tank
(MIV 101 and MIV 102)
.
6. Turn the “O/I” switch is in the “I” position. The generator will begin to cycle.
7. Once there is sufficient pressure, adjust the outlet pressure regulator
(PRV 101)
until the gauge
indicates the desired setting.
8. Open the nitrogen outlet product control valve
(PCV 101)
to vent the off-spec nitrogen to atmosphere.
Set the outlet flow to one-half of the designed flow rate based on the desired purity. Refer to nitrogen
flow table in Section 1.2 “Flow Rates.”
**IMPORTANT: ENSURE THE NITROGEN IS VENTED TO A SAFE LOCATION WHERE THERE IS
ADEQUATE VENTILATION.**
9. Verify outlet pressure reading. Adjust using the outlet pressure regulator
(PRV 101)
if necessary.
10. Once the oxygen content is at acceptable levels, re-adjust the nitrogen outlet product control valve
(PCV 101)
to full flow rate (based on the desired purity) show in flow tables.
11. Gradually close manual vent valve (customer supplied and installed) to discontinue venting nitrogen
to atmosphere.
12. Gradually open manual block valve (customer supplied and installed) to allow flow to downstream
product or production processes.
13. Verify outlet pressure reading. Adjust using the outlet pressure regulator
(PRV 101)
if necessary.
WARNING
Summary of Contents for DB Series
Page 1: ...DB Series Nitrogen Generator Owner s Manual Models DB5 20...
Page 41: ...41 DB Series Nitrogen Generator DB5 20 Model DB 5 10 PPM PCT FD 9 Flow Schematics...
Page 42: ...42 DB Series Nitrogen Generator DB5 20 Model DB 15 20 PPM PCT FD...
Page 55: ...55 DB Series Nitrogen Generator DB5 20 Model Notes...
Page 56: ...56 DB Series Nitrogen Generator DB5 20 Model Notes...
Page 57: ...57 DB Series Nitrogen Generator DB5 20 Model Notes...
