Gallagher PULSE Series - Elaflex DEF Nozzles

SERVICING
59
PULSE Installaon, Commissioning and Servicing Manual - Revision 19
2.3 Elaflex DEF Nozzles
The PULSE series use Elaflex ZVA nozzles for the
dispensing of DEF (Diesel Exhaust Fluid).
Figure 27. Elaflex ZVA DEF Nozzle and Adapter
• Ensure the nozzle is not blocked with DEF crystals.
Once Diesel Exhaust Fluid is exposed to air, the
water will evaporate leaving a crystallized residue.
This residue can block the air passage, a sign of this
being the nozzle tripping continually.
This is solved by moving the nozzle spout back and
forth in a bucket of warm water.
In order to avoid contamination, run some Diesel
Exhaust Fluid through the nozzle at the end of the
procedure.
spout
sensing tube
ELAFIX 40 Magnetic Adapter
Problem
The nozzle will not operate or continually trips out.
Remedies
• Ensure the vehicle filler neck or test drum has the magnetic adapter fitted.
Fluid will not flow unless the nozzle detects the presence of a magnet upon the lower
spout.

Any DEF product that comes in contact with other dispenser components must
be rinsed off with water immediately and thoroughly before any corrosion
damage can occur.