hdf2dl6sm-rev0316 Model HDF2 Page 3
Materials and Dimensions:
HDF2
Materials
Operating Temperatures
For specic applications, always consult “Chemical Resistance Chart" Technical Bulletin
Nitrile/FDA White Nitrile General purpose, oil-resistant. Shows good solvent, oil, water and hydraulic uid
resistance. Should not be used with highly polar solvents
like acetone and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons.
EPDM Shows very good water and chemical resistance. Has poor resistance to oil and solvents, but is fair in
ketones and alcohols.
NEOPRENE All purpose. Resistant to vegetable oils. Generally not affected by moderate chemicals, fats,
greases and many oils and solvents. Generally
attacked by strong oxidizing acids, ketones, esters, nitro hydrocarbons and chlorinated aromatic hydrocar-
bons.
HYTREL
®
Good on acids, bases, amines and glycols at room temperature.
FKM (Fluorocarbon) shows good resistance to a wide range of oils and solvents; especially all aliphatic,
aromatic and halogenated hydrocarbons, acids, animal
and vegetable oils. Hot water or hot aqueous solutions (over 70°F) will attack FKM.
Urethane
Shows good resistance to abrasives. Has poor resistance to most solvents and oils.
Santoprene
®
Injection molded thermoplastic elastomer with no fabric layer. Long mechanical ex life. Excel-
lent abrasion resistance.
‡
9.81
249
19.87
505
20.30
516
21.65
550
4.44
113
8.88
226
8X
.50
13
5.13
130
10.25
260
5.50
140
11.00
279
7.00
178
14.00
356
2.62
67
13.55
344
17.68
449
2.62
67
2.56
65
OPTIONAL
VERTICAL
SUCTION
PORT
3/4" NPT AIR INLET
3/4" NPT EXHAUST
2" NPT DISCHARGE PORT
2" NPT SUCTION PORT
Dimensions are ± 1/8"
Figures in parenthesis = millimeters
This pump also available in dual port design.
See price book or consult factory for details.
2" NPT(F) Suction and Discharge • ¾" NPT(F) Air Inlet
Port • ¾" NPT(F) Air Exhaust Port (not shown)
Maximum Minimum
CF-8M Stainless Steel equal to or exceeding ASTM specication A743 for corrosion resistant iron chro-
mium, iron chromium nickel, and nickel based alloy castings for general applications. Commonly referred
to as 316 Stainless Steel in the pump industry.
190°F -10°F
88°C -23°C
280°F -40°F
138°C -40°C
200°F -10°F
93°C -23°C
220°F -20°F
104°C -29°C
350°F -40°F
177°C -40°C
150°F +32°F
66°C 0°C
275°F -40°F
135°C -40°C
Maximum and Minimum Temperatures are the limits for which
these materials can be operated. Temperatures coupled with
pressure affect the longevity of diaphragm pump components.
Maximum life should not be expected at the extreme limits of
the temperature ranges.
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