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Table 4: Clamp connections · All dimensions in mm
Valve size
p
max
L1
DIN 11864-3
NKS form A
L2
Series A
Øint
Øext
p
max
L1
DIN 11864-3
NKS form A
L2
Series B
Øint
Øext
p
max
L1
DIN 11864-3
NKS form A
L2
Series C
Øint
Øext
p
max
L1
DIN 32676,
L2
Series A
Øint
Øext
p
max
L1
DIN 32676
L2
Series B
Øint
Øext
p
max
L1
DIN 32676
L2
Series C
Øint
Øext
p
max
L1
L2
ISO 2852
Øint
Øext
p
max
L1
BS 4825
Part 3
L2
= ASME BPE
Øint
Øext
Version according to ASME BPE only
1)
EB 2640 EN
Type 2371-11
DN 15
DN 20
DN 25
NPS ½
NPS ¾
NPS 1
55
55
60
90
90
90
16
20
26
34
50.5
50.5
55
55
60
90
90
90
18.1
23.7
29.7
34
50.5
50.5
–
55
60
–
90
90
–
15.75
22.1
–
34
50.5
55
55
60
90
90
90
16
20
26
34
34
50.5
55
55
60
90
90
90
18.1
23.7
29.7
50.5
50.5
50.5
–
55
60
–
90
90
–
15.75
22.1
–
25
50.5
–
–
60
–
–
90
–
–
22.6
–
–
50.5
–
55
60
1)
–
90
90
1)
–
15.75
22.2
1)
–
25
50.5
1)
DN 32
DN 40
DN 50
NPS 1¼
NPS 1½
NPS 2
10 bar/150 psi
60
65
70
90
90
90
32
38
50
50.5
64
77.5
10 bar/150 psi
60
65
70
90
90
90
38.4
44.3
56.3
64
64
91
10 bar/150 psi
–
65
70
–
90
90
–
34.8
47.5
–
64
77.5
10 bar/150 psi
60
65
70
90
90
90
32
38
50
50.5
50.5
64
10 bar/150 psi
60
65
70
90
90
90
38.4
44.3
56.3
64
64
77.5
10 bar/150 psi
–
65
70
–
90
90
–
34.8
47.5
–
50.5
64
10 bar/150 psi
60
65
70
90
90
90
31.3
35.6
48.6
50.5
50.5
64
10 bar/150 psi
–
65
70
–
90
90
–
34.9
47.6
–
50.5
64
Dimensions
Type 2371-10
DN 32
DN 40
DN 50
NPS 1¼
NPS 1½
NPS 2
105
105
105
155
155
155
32
38
50
50.5
64
77.5
105
105
105
155
155
155
38.4
44.3
56.3
64
64
91
–
105
105
–
155
155
–
34.8
47.5
–
64
77.5
105
105
105
155
155
155
32
38
50
50.5
50.5
64
105
105
105
155
155
155
38.4
44.3
56.3
64
64
77.5
–
105
105
–
155
155
–
34.8
47.5
–
50.5
64
105
105
105
155
155
155
31.3
35.6
48.6
50.5
50.5
64
–
105
105
–
155
155
–
34.9
47.6
–
50.5
64
31
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