Abbreviation for Deutsches Institut für Normung e.V., which publishes German
standards (DIN Normen) under the DIN mark. Some of the DIN standards
affecting the design, production and operation of mechanical seals in pumps and agitators
are listed below:
- DIN 3750 (published August 1957) Seals; nomenclature
- DIN 3770 (October 1970) O-rings with special dimensional precision, made of
elastomers. Supplement (October 1970) O-rings with special dimensional accuracy, made of
elastomers; design references for installation (withdrawn).
- DIN 7 168 T1 (May 1981) General tolerances; length and angle dimensions. T2
General tolerances; shape and position.
- DIN 24 255 (November 1978) Centrifugal pumps with axial inlet, PN 10, with
bearing bracket; designation, nominal power, main dimensions.
- DIN 24 256 (November 1978) Centrifugal pumps with axial inlet, PN 16, with
bearing bracket; designation, nominal power, main dimensions.
- DIN 24 960 (June 1980) Mechanical seals; shaft stuffing box, main dimensions,
designation and material code.
- DIN 28 130 T3 (October 1983) Agitator vessel with agitator; agitator
drive; nomenclature, component combinations, summary.
- DIN 28 130 T3 (October1983) Agitator vessel with agitator; agitator
drive; explanations Supplement 1
- DIN 28 136 T1 (June 1981) Agitator vessel, E (November 1985) Main
dimensions T2 (May 1982) Agitator vessel, arrangement and size of cover sockets for
agitator vessel made of unalloyed and stainless steel. T3 (April 1984) Agitator vessel,
arrangement and size of cover sockets for agitator vessels made of enameled steel.
- DIN 28 137 T1 (May 1982) Agitator flange for agitator vessels made of
unalloyed and stainless steel; dimensions and designs. T2 (October 1983) Agitator flange
form E for agitator vessels made of steel, enameled; fitting dimensions for mechanical
seals and agitator gear stool.
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- DIN 28 138 T1 (October 1983) Mechanical seals for agitator shafts made of
unalloyed and stainless steel, operating data and installation dimensions. T2 (October
1983) Mechanical seals for agitator shafts made of enameled steel, operating data and
installed dimensions. Corresponds to DIN 28 137 T2.T3 (October 1983)
Mechanical seals for agitator shafts, designation, connections for buffer fluid, cooling,
controlling and installation.
- DIN 28 141 (October 1983) Connecting flange for agitator vessels made of
unalloyed and stainless steel. Corresponds to DIN 28 137 T1 and
DIN 28 138 T1.
- DIN 28 148 (April 1985) PTFE coated seals for agitator vessels made of
enameled steel. Corresponds to DIN 28 137 T2 and DIN 28 138 T2.
- DIN 28 154 (October 1983) Shaft end for agitator made of unalloyed and
stainless steel for mechanical seals, dimensions, corresponds to DIN 28 138 T1
and 28 141.
- DIN 28 159 (October 1983) Shaft end for one-piece agitators, enameled steel,
dimensions. Corresponds to DIN 28 138 T2.
- DIN 28 161 (October 1983) Requirements on agitator drives, speed, direction of
rotation, bearing, running accuracy, dismantling space for mechanical seals.
- DIN 28 162 T1 (October 1983) Agitator gear stools for agitator drives with
mechanical seal T2 (October 1983) Agitator gear stools for agitator drives with stuffing
box seal.
- DIN ISO 1629 (October 1981) Rubbers and lattices; classification, symbols.
- DIN ISO 5199
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