Pump Packing and Solvent Chamber Fluid Guide
2
Part 108044G
E 2003 Nordson Corporation
Packing Material and Application
Packing Type Material Application
A Cotton duck saturated with
buna-nitrile and coated with
graphite
Good for less abrasive applications where strong
solvents are not used. Contains graphite coating to
reduce friction.
D Cotton duck and synthetic
fabric saturated with
buna-nitrile and PTFE
Good for less abrasive applications where strong
solvents are not used. Contains PTFE to reduce
friction.
F PTFE V-rings stacked with
leather V-rings
Most commonly used packing in the finishing industry.
Use for strong solvents and abrasive materials.
G
(1)
Polyurethane U-cups Frequently used with waterborne materials. Not
compatible with some solvents.
(1)
U
(2)
Ultra-high molecular weight
polyethylene (UHMWPE)
Good for highly abrasive materials. Compatible with
waterborne and most solventbornes.
(2)
NOTE 1: Do not use Type G packing glands with aromatic hydrocarbon solvents or with Type K or S
solvent chamber fluids.
NOTE 2: Type U packings may swell slightly when exposed to aromatic hydrocarbon solvents.
Solvent Chamber Fluid Composition and Application
Solvent Type Material Application
T Mixed propylene glycol Use for waterborne systems. (Thinner than Type-Q and
best used on smaller pump models.)
Q Liquid anionic flocculant
mixed with distilled water.
Use for waterborne systems. (Thicker than Type-T and
best used on larger pump models.)
K Epoxidized soybean oil Use for solventborne applications. Do not use for
waterborne and catalyzed alkyd urea applications.
S Mixed aliphatic dimethyl
esters
Use for solventborne applications.
NOTE: Type K solvent is highly viscous. At room temperature, it is not appropriate for use in Model 25B
or 64B pumps where the solvent must flow through a filler cup and small ID passage into the solvent
chamber.
Solvent Chamber Fluid Parts List
Part Description
248831 FLUID, type-S, pump chamber, one quart
900255 FLUID, type-K, pump chamber, one quart
140029 FLUID, type-T, pump chamber, one quart
244854 FLUID, type-Q concentrate (2.6 fluid ounce, makes one gallon)
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