User Manual

hdf3adl7sm-rev0614
Meanings of
Abbreviations:
A = Compressed Fibre B = Nitrile N = Neoprene SS = Stainless Steel
AL = Aluminun CI = Cast Iron PS = Plated Steel S = Santoprene
®
ALM = Almag 35 Aluminum H = Hytrel
®
R = Urethane
Hytrel is a registered tradename of E.I. du Pont. Santoprene is a registered tradename of Exxon Mobil Corp.
Explanation of Pump Nomenclature, HDF3-A & HDF4-A
II 2GD T5
II 2 G c T5
II 3/2 G c T5
II 2 D c T100oC
All models, including pumps equipped with Aluminum
wetted and midsection parts.
See page 6 for ATEX Explanation of Type
Examination Certicate.
MATERIALS OF CONSTRUCTION
Type Manifold
Elbow
Outer
Chamber
Inner
Chamber
Outer
Diaphragm
Plates
Inner
Diaphragm
Plate
Intermedi-
ate Housing
Diaphragm
Rod
Valve
Seat
Hardware Diaphragm Flap
Valve
Material
Seat
Gasket
Sealing
Rings
Shippping
Wt. (lbs)
DA7. 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS N R A B 245
DN7. 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS N N A B 245
DB7. 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS B B A B 245
DK7. 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS N H A B 245
DS7. 356-T6AL 356-T6AL 356-T6AL Alm35AL Alm35AL 356-T6AL 416SS SS PS S S A B 245
To order a pump or replacement parts, rst enter the Model Number HDF3-A, or HDF4-A, followed by the Type Designation listed below in the far left column.
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.
Santoprene
®
Injection molded thermoplastic elastomer with no fabric layer. Long mechanical ex life. Excel-
lent abrasion resistance.
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
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.