8
NITROGEN GENERATORS
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Figure 3
Top View of Base Holes
6.2 General
The Nitrogen Generators are free-standing units.
Do not suspend the nitrogen generator from
a wall or ceiling. Its considerable weight and size could pose a falling hazard.
Holes have been
pre-drilled in the base of the generator (see Figure 3) to secure it to the floor, if desired.
The inlet and outlet ports on the nitrogen generators are 1/2" female NPT. A 1/2" male connector
which will withstand 145 psig (10 barg) should be used to connect to the nitrogen generator. Parker
offers an installation kit (P/N IK75880) which combines all the basic fittings and refrigeration grade
copper tubing required to bring the system online. This kit can be used to connect the generator
to up to 2 instruments and to the compressed air supply. See Figure 4 for the recommended
installation schematic.
Shutoff Valve -
A shutoff valve should be installed directly upstream from the nitrogen generator
to facilitate routine maintenance and troubleshooting procedures.
The valve should always be
opened slowly.
Opening a valve quickly will pressurize the membrane too rapidly and may cause
membrane rupture. Membrane failures resulting from improper valve installation will not be covered
under warranty.
Pressure Regulator -
A pressure regulator should be installed directly upstream from the nitrogen
generator to set and maintain the inlet air pressure. Maintaining a constant inlet air pressure is
critical to the performance of the system.
Flow Controller -
If the application requires nitrogen at pressures higher than 10 psig (0.7 barg),
install a flow controller downstream from the nitrogen generator, close to the point of use
(see Adjustment Procedure section, page 14).
