User guide

hdf3mdl2sm-rev1110 Model HDF3-M & HDF4-M Page 2
Materials
Operating Temperatures
For specic applications, always consult “Chemical Resistance Chart" Technical Bulletin
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.
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 hydrocarbons.
HYTREL
®
Good on acids, bases, amines and glycols at room temperature.
Urethane
Shows good resistance to abrasives. Has poor resistance to most solvents and oils.
Maximum Minimum
‡
CF-8M Stainless Steel equal to or exceeding ASTM specication 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
200°F -10°F
93°C -23°C
220°F -20°F
104°C -29°C
150°F +32°F
66°C 0°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.
Meanings of
Abbreviations:
A = Compressed Fibre DI = Ductile Iron PS = Plated Steel
B = Nitrile H = Hytrel
®
SS = Stainless Steel
CI = Cast Iron N = Neoprene U = Urethane
Most types available in dual port design. See price book or consult factory for details.
Hytrel is a registered tradename of E.I. du Pont. Santoprene is a registered tradename of Exxon Mobil Corp.
Explanation of Pump Nomenclature, HDF3-M & HDF4-M
II 2GD T5
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
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MATERIALS OF CONSTRUCTION
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
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





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
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  

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





              
              
              
              

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              
              
              
To order a pump or replacement parts, rst enter the Model Number HDF3-M, or HDF4-M, followed by the Type Designation listed below in the far left column.