2018 Adhesives and Sealants Equipment Guide

Auxiliary Equipment
Adhesive & Sealants Equipment Guide Auxiliary Equipment | 14-1
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Nitrogen Generation System & Booster Pump
Description
The Nordson nitrogen generation system and nitrogen
booster pump were developed to help customers achieve a
simple, cost-effective nitrogen supply to:
• produce a closed cell foam when using Nordson foaming
technology;
• create a nitrogen blanket when using Nordson tank melters or
extruders with reactive hot melt materials or materials prone to
char.
The Nordson booster pump is necessary to boost the
nitrogen gas pressure when high-pressure gas is required, as
when used in conjunction with a SureFoam system.
Foaming Applications
While plant air, or a variety of inert gases, can be used
with Nordson foaming systems to create the closed cell
foam, nitrogen gas is considered best. Nitrogen gas supply
is clean; relatively inexpensive; truly inert (non reactive
with adhesives or sealants being formed); and creates small,
consistent bubbles.
Tank Blanketing
Inert gas protects adhesives/materials in a holding or
processing tank from exposure to oxygen and/or air (and
most specifically in the case of reactive polyurethane
adhesives, the mosture in air). Referred to as a “nitrogen
blanket,” a constant supply of gas serves to fill up any
“empty” space in a tank, thereby displacing oxygen/air. The
blanket helps maintain the adhesive’s bonding integrity,
prevents char development and in the case of moisturecure
adhesives, prevents premature curing. Vitually any of
Nordson’s tank melters can be fitted with a tank blanketing
system if desired/needed.
Nitrogen Gas Generation Process
While nitrogen gas is often supplied in cylinders, they are
cumbersome and require special handling/storage; require
frequent change-out on the production line; and must be
refilled/replenished regularly.
Nitrogen Generation System & Booster
On-site production of nitrogen gas can be
instituted relatively inexpensively and easily with
the Nordson nitrogen generation system.
Plant air is the raw material that feeds the nitrogen
generation process. A two-stage filtration process
removes contaminants and moisture. The dry,
purified air then passes into the membrane
separation section of the nitrogen generator.
The membrane construction allows the nitrogen
molecules to proceed through to the end of
the bundle of hollow tubes while the other
air components, including oxygen and argon,
pass through the tube membrane and vent to
the outside atmosphere. The end result is an
uninterrupted supply of nitrogen gas that is 95-
99.5% pure.
To place your order, NAD call 1-888-NORDSON (1-888-667-3766), fax 1-770-497-3733 or online at www.enordson.com.
International Orders, call 1-440-985-4797, fax 1-440-985-1096, or email intcustomerservice@nordson.com