YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 62
NJEX EUR ver. 08-2021
Section 10: Mechanical System
Odorant Inlet Manifold &
Bulk Odorant Filter Assembly
The odorant inlet manifold & bulk odorant filter assem-
bly,
figure 172
, is located adjacent to each pump /
verometer assembly and performs the following func-
tions:
• Provides the system’s odorant supply connection
by means of a 1/4” FNPT connection located on the
back of the enclosure.
• Provides a pressure gage to show odorant supply
pressure from storage tank.
• Provides an odorant supply isolation valve.
• Houses the first of two odorant filter systems within
the NJEX System.
• Acts as the odorant return manifold during system
.
In the event that the internal filter elements become
dirty, a bulk odorant filter repair kit is available.
Fill Valve
The purpose of the fill valve is to control odorant flow
into the Verometer,
figure 173
. The fill valve is opened
when a pneumatic signal from the solenoid valve
manifold depresses the fill valve diaphragm. The
valve is closed when the pneumatic signal is removed
and the fill valve spring returns the check valve wafer
to its seat. The transfer of odorant from the bulk stor-
age tank to the Verometer, when this valve is activat-
ed, is dependant on an adequate pressure differential
between the bulk storage tank and the Verometer,
with the bulk storage tank retaining the higher of the
two pressures. These pressures are monitored by two
pressure transmitters mounted in the system. One
transmitter monitors the incoming pressure from the
bulk storage tank, while the other, mounted on the ex-
pansion tank, monitors the pressure in the verometer.
A differential pressure range of 0
.35 - 0.69 Bar
must
be present, with the differential not exceeding either
end of the range.
Figure 172
Figure 173
Summary of Contents for NJEX 6300G
Page 1: ...NJEX 6300G 7300G N A T U R A L G A S O D O R I Z A T I O N S Y S T E M...
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Page 3: ...NJEX 6300G 7300G Instruction Operating Manual Version 08 2021...
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