YZ Systems NJEX 6300G, Instructions & Operating Manual, Page: 19 / 128

YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 9 NJEX EUR ver. 08-2021
Section 2: System Installation
Figure 7
CAUTION:
Excessive tubing lengths should be avoided. Installa-
tion of the NJEX Odorization system should be as close
to the point of injection and Odorant Storage Tank as
possible. Maximum tubing length should not exceed
4.5 meters with the tubing size maintained as indicated
in this manual. If longer tubing lengths are required
consult YZ Systems Technical Service Department at;
800.653.9435 or 281.362.6500.
3. Connect the odorant supply source to the odor-
ant inlet mainfold with the recommended 6.35mm
stainless steel tubing,
figure 7
. A tank isolation valve
should be incorporated between the storage tank
and this connection,
figure 7.
4. Connect the regulated actuation gas source, of 5.2
Bar supplied by the NJEX system owner, to the
NJEX gas filter inlet fitting using a dielectric union,
figure 7
.
• For Pipeline pressures less than 13.8 Bar a
single cut regulator (Fisher 67 YZ P/N A3-0042
or similar) adjustable to provide 5.2 Bar to the
inlet gas filter on the NJEX enclosure should be
acceptable.
• P/L pressure above 13.8 Bar need a dual cut
regulation process:
1. Install the primary regulator on the pipeline
*Fisher 1301 YZ P/N A3-0274 or similar),
and adjust it to provide 10.3 Bar to the sec-
ondary regulator.
2. Install the secondary regulator at the inlet
gas filter on the back of the NJEX enclosure
(Fisher 67 YZ P/N A3-0042 or similar), and
adjust it to provide 5.2 Bar to the NJEX Sys-
tem should be acceptable.
3. 3/8" Stainless Steel tubing should be used
between the two regulators.
• Dual Pump enclosures, may require larger tubing
between the regulators, and the secondary regula-
tor may need to have a larger orifice (Fisher 64 or
similar), if both pumps run simultaneously.
Note:
In applications where the actuation gas supply
has a high water content and/or a low hydrocarbon dew
point, additional actuation gas filtration or heating of the
NJEX system may be necessary. Bottled nitrogen can
also be used during cold operating conditions to avoid
condensation in the actuation gas supply line. Also,
an actuation gas source pressure of 5.2 Bar should be
adequate in most installations.
5. Connect the pipeline port of the odorant discharge
manifold to the pipeline connection using a dielectric
union and check valve,
figure 7.
Odorant Discharge
Manifold Pipeline Port
Odorant Inlet
Connection
5.2 Bar
Regulated Actuation
Gas