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Materials
Material Profile:
CAUTION! Operating temperature limitations are as follows:
Conductive Acetal: Tough, impact resistant, ductile. Good
abrasion resistance and low friction surface. Generally inert, with
good chemical resistance except for strong acids and oxidizing
agents.
EPDM: Shows very good water and chemical resistance. Has
poor resistance to oils and solvents, but is fair in ketones and
alcohols.
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(21°C)) will
attack FKM.
Hytrel®: Good on acids, bases, amines and glycols at room
temperatures only.
Neoprene: All purpose. Resistance to vegetable oils. Generally
not affected by moderate chemicals, fats, greases and many
oils and solvents. Generally attacked by strong oxidizing acids,
ketones, esters and nitro hydrocarbons and chlorinated aromatic
hydrocarbons.
Nitrile: General purpose, oil-resistant. Shows good solvent, oil,
water and hydraulic fluid resistance. Should not be used with
highly polar solvents like acetone and MEK, ozone, chlorinated
hydrocarbons and nitro hydrocarbons.
Nylon: 6/6 High strength and toughness over a wide
temperature range. Moderate to good resistance to fuels, oils
and chemicals.
Ambient temperature range:
-20°C to +40°C
Process temperature range:
-20°C to +80°C for models rated as category 1 equipment
-20°C to +100°C for models rated as category 2 equipment
In addition, the ambient temperature range and the process temperature range do not exceed the operating temperature range of the applied non-metallic parts as listed in the manuals of the pumps.
4
• Model TA3
Operating
Polypropylene: A thermoplastic polymer. Moderate tensile
and flex strength. Resists stong acids and alkali. Attacked by
Temperatures:
chlorine, fuming nitric acid and other strong oxidizing agents.
Max.
Min.
PVDF: (Polyvinylidene Fluoride) A durable fluoroplastic with
190°F
-20°F
excellent chemical resistance. Excellent for UV applications.
88°C
-29°C
High tensile strength and impact resistance.
Santoprene®: Injection molded thermoplastic elastomer with
no fabric layer. Long mechanical flex life. Excellent abrasion
280°F
-40°F
resistance.
138°C
-40°C
UHMW PE: A thermoplastic that is highly resistant to a broad
range of chemicals. Exhibits outstanding abrasion and impact
350°F
-40°F
resistance, along with environmental stress-cracking resistance.
177°C
-40°C
Urethane: Shows good resistance to abrasives. Has poor
resistance to most solvents and oils.
Virgin PTFE: (PFA/TFE) Chemically inert, virtually impervious.
Very few chemicals are known to chemically react with PTFE;
220°F
-20°F
molten alkali metals, turbulent liquid or gaseous fluorine and
104°C
-29°C
a few fluoro-chemicals such as chlorine trifluoride or oxygen
200°F
-10°F
difluoride which readily liberate free fluorine at elevated
93°C
-23°C
temperatures.
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.
190°F
-10°F
Metals:
88°C
-23°C
Alloy C: Equal to ASTM494 CW-12M-1 specification for nickel and nickel alloy.
Stainless Steel: Equal to or exceeding ASTM specification A743 CF-8M for corrosion
180°F
32°F
resistant iron chromium, iron chromium nickel and nickel based alloy castings for
82°C
0°C
general applications. Commonly referred to as 316 Stainless Steel in the pump industry.
For specific applications, always consult the Chemical Resistance Chart.
.
sandpiperpump
com
ta3mdl2sm-rev0917
180°F
32°F
82°C
0°C
250°F
0°F
121°C
-18°C
275°F
-40°F
135°C
-40°C
180°F
-35°F
82°C
-37°C
150°F
32°F
66°C
0°C
220°F
-35°F
104°C
-37°C
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