1 E2 70 en
5
Fig. 4
Flange drilling / neck bolting
Table 1
Flange drilling / neck bolting, dimensions in mm. ASME 150 / ISO 7005 PN 20. ASME 300 / ISO 7005 PN 50
TY
PE
F
a
ce-to-face A
ASME 150 / ISO 7005 PN 20
ASME 300 / ISO 7005 PN 50
Number of
fla
n
g
e
bo
lts *)
Number of
neck bol
ts **
)
Bolt
siz
e
R
Depth
of
nec
k b
o
lt d
rillin
g S
L
engt
h
of
ne
c
k
bolt
s
Lmi
n
Number of
fla
n
g
e
bo
lts *)
Number of
neck bol
ts **
)
Bolt
siz
e
R
Depth
of
nec
k b
o
lt d
rillin
g S
L
engt
h
of
ne
c
k
bolt
s
Lmi
n
E2_025/E2_01
102
4
-
-
-
-
4
-
-
-
-
E2_040/E2_1H
114
4
-
-
-
-
4
-
-
-
-
E2_050/E2_02
124
4
-
-
-
-
8
2
5/8" UNC / M16
17.0
70
E2_080/E2_03
165
4
-
-
-
-
8
2
3/4" UNC / M20
20.0
85
E2_100/E2_04
194
8
2
5/8" UNC / M16
17.0
75
8
2
3/4" UNC / M20
20.0
90
E6_025/E6_01
102
4
-
1/2" UNC / M12
-
-
4
-
5/8" UNC / M16
-
-
E6_040/E6_1H
114
4
-
1/2" UNC / M12
-
-
4
-
3/4" UNC / M20
-
-
E6_050/E6_02
124
4
-
5/8" UNC / M16
-
-
8
2
5/8" UNC / M16
28.5
75
E6_080/E6_03
165
4
-
5/8" UNC / M16
-
-
8
2
3/4" UNC / M20
28.5
85
E6_100/E6_04
194
8
2
5/8" UNC / M16
29.5
80
8
2
3/4" UNC / M20
29.5
90
E6_150/E6_06
229
8
2
3/4" UNC / M20
28.5
80
12
2
3/4" UNC / M20
28.5
95
E6_200/E6_08
243
8
8
3/4" UNC / M20
28.5
80
12
12
7/8" UNC / M24
28.5
95
*) total number / flange
**) number of neck bolts / flange
Table 2
Flange drilling / neck bolting, dimensions in mm. EN PN 10, 16, 25, 40
TY
PE
F
a
ce-to-face A
EN PN 10
EN PN 16
EN PN 25
EN PN 40
N
u
mber of
f
lan
g
e
bol
ts *)
N
u
mber of
n
e
c
k
bolt
s
*
*)
B
o
lt siz
e
R
D
e
pth o
f
nec
k b
o
lt dr
illing
S
Le
ngt
h of neck
b
o
lt
s Lmin
N
u
mber of
f
lan
g
e
bol
ts *)
N
u
mber of
n
e
c
k
bolt
s
*
*)
B
o
lt siz
e
R
D
e
pth o
f
nec
k b
o
lt dr
illing
S
Le
ngt
h of neck
b
o
lt
s Lmin
N
u
mber of
f
lan
g
e
bol
ts *)
N
u
mber of
n
e
c
k
bolt
s
*
*)
B
o
lt siz
e
R
D
e
pth o
f
nec
k b
o
lt dr
illing
S
Le
ngt
h of neck
b
o
lt
s Lmin
N
u
mber of
f
lan
g
e
bol
ts *)
N
u
mber of
n
e
c
k
bolt
s
*
*)
B
o
lt siz
e
R
D
e
pth o
f
nec
k b
o
lt dr
illing
S
Le
ngt
h of neck
b
o
lt
s Lmin
E2_025/E2_01
102
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
E2_040/E2_1H
114
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
E2_050/E2_02
124
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
4
-
-
-
-
E2_080/E2_03
165
8
2
M16
17.0
65
8
2
M16
17.0
65
8
2
M16
17.0
70
8
2
M16
17.0
70
E2_100/E2_04
194
8
2
M16
17.0
65
8
2
M16
17.0
65
8
2
M20
20.0
75
8
2
M20
20.0
75
E6_025/E6_01
102
4
-
M12
-
-
4
-
M12
-
-
4
-
M12
-
-
4
-
M12
-
-
E6_040/E6_1H
114
4
-
M16
-
-
4
-
M16
-
-
4
-
M16
-
-
4
-
M16
-
-
E6_050/E6_02
124
4
-
M16
-
-
4
-
M16
-
-
4
-
M16
-
-
4
-
M16
-
-
E6_080/E6_03
165
8
2
M16
28.5
70
8
2
M16
28.5
70
8
2
M16
28.5
75
8
2
M16
28.5
75
E6_100/E6_04
194
8
2
M16
29.5
70
8
2
M16
29.5
70
8
2
M20
29.5
80
8
2
M20
29.5
80
E6_150/E6_06
229
8
2
M20
28.5
75
8
2
M20
28.5
75
8
2
M24
28.5
85
8
2
M24
28.5
85
E6_200/E6_08
243
8
8
M20
28.5
75
12
12
M20
28.5
75
12
12
M24
28.5
85
12
12
M27
28.5
85
*) total number / flange
**) number of neck bolts / flange
S
S
A
Lmin.
R
TYPE E2
Lmin.
R
S
S
A
Lmin.
R
TYPE E6
Lmin.
R