Series RSS/F
Page
5
9560-010-en
Revision 19
TM 10477
Edition 05/2022
Pipe screws
,
flanges to ASME Class 300
Flange
Nominal size
screws
Tightening torque
[mm] [inch]
[ASME]
[Nm]
[in-lbs]
25
1
4 x ⅝“
15
133
40
1½
4 x ¾“
25
221
50
2
8 x ⅝“
15
133
Cover screws
ISO/DIN
Flange
Nominal size
screws
Tightening torque
[mm] [inch]
[ISO/DIN]
[Nm]
[in-lbs]
15
½“
4 x M10
30
266
20
¾“
4 x M10
30
266
25
1“
4 x M12
50
442
40
1½“
4 x M12
50
442
65
---
4 x M12
50
442
50
2“
4 x M12
50
442
80
3“
8 x M12
50
442
100
4“
8 x M12
50
442
150
6“
10 x M16
110
974
Cover screws
ASME
Flange
Nominal size
screws
Tightening torque
[mm] [inch]
[ASME]
[Nm]
[in-lbs]
15
½“
4 x 3/8"
30
266
20
¾“
4 x 3/8"
30
266
25
1“
4 x ½“
50
442
40
1½“
4 x ½“
50
442
50
2“
4 x ½“
50
442
80
3“
8 x ½“
50
442
100
4“
8 x ½“
50
442
seat
Screws not greased
Flange
Nominal size
Tightening
torque
[mm] [inch] [Nm] [in-lbs]
15
½“
3
26
20
¾“
3
26
25
1“
6
53
40
1½“
12
106
50
2“
16
142
65
---
16
142
80
3“
28
248
100
4“
30
265
150
6“
65
575
1.4 Pressure-temperature dia-
gram
2014/68/EU (PED), AD2000, DIN EN 16668
ASME B 16.42
DIN EN ISO 15848-1 certificate valid from -29°C to 180°C
When used in the area of application of ASME or
ANSI/ISA, the low temperature of ASTM A395 is
limited to -20°F (-29°C).
When used in the minus temperature range,
the regulations applicable in the country in
question must be observed.
