DIN3021标准弹簧卡箍docx.docx
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DIN3021标准弹簧卡箍docx.docx
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DIN3021标准弹簧卡箍docx
April1998
DIN
3021-1
erespremieres,type
Hoseclamps
SpringBandClamps(SBC)
Part1:
Dimensions,marking,materials,types
ICS21.060.70
Hoseclamps-Springbandclamp-Part1:
Dimensions,marking,materials,typesColliersdeserrage-Colliersderessort-Partie1:
dimensions,designation,mati
Foreword
ThisstandarddraftwasdrawnupbythestudygroupStandardisationofSpringBandClampsintheStandardsCommitteeIron,SheetandMetalware(NAEBM).
DIN3021
Hoseclamps-springbandclamps(SBC)comprise:
Part1:
Dimensions,designation,materials
Part2:
Technicaldeliveryconditions
Part3:
System:
springbandclamp/hose/spigot
AnnexesAandBareforinformation.
Warningremarksaboutapplication
Thisstandarddraftissubmittedtothepublicforcheckingandcomments.Sincetheintendedstandardmaydifferfromthepresentversion,applicationofthisdraftshallbeagreeduponinaspecialform.PleaserefercommentstoNormenausschussEisen-,Blech-undMetallwaren(NAEBM)inDIN,KaiserswertherStr.135,D-40474Duesseldorf.
1Fieldofapplication
Thisstandardisapplicabletospringbandclampsmadefromannealedstripsteelusedtoattachhosestomobileandstationaryplantsforapplicationinatemperaturerangefrom-40°Cto+150°C,insuchfieldsas:
-coolantcirculationandservosystemupto300kPa(3bar)overpressure,
-fuelsystemupto700kPa(7bar)overpressure,
-airintakesystemunderpressure,
-airchargesystemupto200kPa(2bar)overpressure,
tosealthehose/spigotconnection.
Thespringbandclamp,hoseandspigotisasystem.PleaseseeAnnexAfordesignnotes.
2Referencestostandards
Thisstandardcomprisesdatedorundatedreferences,definitionsfromotherpublications.Thesereferencestostandardsarequotedattherelevantlocationsinthetext,andtheotherpublicationsarelistedbelow.Inthecaseofdatedreferences,lateramendmentsorrevisionsofthispublicationsbelongtothisstandardonly,iftheyhavebeenworkedintothetextbywayofamendmentorrevisions.Inthecaseofundatedreferencesthelatestissueofthepublicationsreferredtoshallapply.
DIN3021-2
Hoseclamps-springbandclamps-Part2:
Technicaldeliveryconditions.
DIN3021-3
Hoseclamps-springbandclamps-Part3:
System:
springbandclampshosespigots
DIN6784
Workpieceedges-terms,drawingdetails
DINEN10052
Termsforheattreatmentofferrousmaterials;GermanlanguageversionEN10052:
1993
DINISO2768-1
Generaltolerances-Part1:
Tolerancesforlengthsandangulardimensionswithoutindividualtolerancesbeingentered.IdenticaltoISO2768-1:
1989.
Tobecont.Page2to8
Normenausschu?
Eisen-,Blech-undMetallwaren(NAEBM)imDINDeutschesInstitutfiirNormungeV
3Dimensions,marking
Dimensionsinmillimetres
Generaltolerances:
ISO2768-m
Thespringbandclampsneednotcorrespondtothepictorialrepresentation;onlythedimensionsspecifiedmustbemaintained.
Figure2:
FormB
MarkingofaspringbandclampFormAwithnominaldiameterdn=32mmandaclampwidthof12mm
ClampDIN3021-A-32x12
Designation
DINstandardnumber
Form
Nominaldiameterdn
Clampwidthc
Table1:
DimensionsforFormA,c=12mm
Dimensionsinmillimetres
Nominaldiameter
Deliverydiameter
Fullyopeneddiameter
Materialthickness
Clampwidth
a
b
e
g
h
Gapdimen.
dn1
damax.
domin.
s±0.4
c±0.34)
max.
5)max.
±0.7
±0.7
max.
丄6)
tmax.
13
12
14.2
14
13.3
15.8
15
14
16.5
16
14.9
17.5
0.8
17
15.6
18.5
18
16
19
19
17.8
20.2
40
20
18.4
21.6
21
19.4
22.5
22
20.5
24.2
1.3
23
21
24.7
24
22
26
25
23.5
26.8
26
24.3
28
27
25.2
29
0.09
28
26.1
30.2
29
27
31.5
30
28
32.5
1.7
32
29.5
34.5
34
30.6
36.4
35
31.5
38
12
9
10
7
5.8
60
36
32.5
39
38
34.5
41.5
40
35.5
42.5
42
37.5
44.5
43
37.9
45.5
44
38.5
46.5
46
40.5
48.5
47
41.5
50
2.1
0.12
49
42.5
52
50
43.5
53
51
44
54
53
46
55.8
72
55
47
58
60
51.5
63
65
57.5
68
70
61.5
73
75
66
78
2.6
0.15
80
70
83
85
74
88
110
90
79
93
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