EB 3128 EN
35
Maintenance
7.5
Tightening torques and width across flats
Part
Width across flats
Valve size
Tightening torque
Coupling nut (1.4)
SW 30
DN 15
80 Nm
SW 36
DN 20
95 Nm
SW 46
DN 25
110 Nm
SW 59
DN 32
130 Nm
SW 65
DN 40
160 Nm
SW 82
DN 50
180 Nm
Seat (2)
–
DN 15 to 25
45 Nm
–
DN 32 to 50
110 Nm
Guide nipple with plug (3)
–
DN 15 to 25
70 Nm
Plug nipple (3.5)
–
DN 32 to 50
110 Nm
Connecting piece (8)
On request
DN 15 to 25
80 Nm
DN 32 to 50
110 Nm
Set point screw (8.3)
Hexagon socket SW 4
–
Screw fitting (11.1)
SW 12
All
22 Nm
Screws (15)
SW 10
DN 15 to 32
8 Nm
SW 13
DN 40 to 50
18 Nm
7.6 Accessories and tools
Table 6:
Order numbers for accessories and tools
Valve size
DN 15
DN 20
DN 25
DN 32
DN 40
DN 50
Welding ends
1)
1400-6500 1400-6501 1400-6502 1400-6509 1400-6510 1400-6511
Threaded ends
1)
1400-6503 1400-6504 1400-6505 1400-6512 1400-6513 1400-6514
Screwed-on flanges
1)
1400-6506 1400-6507 1400-6508 1400-6515 1400-6516 1400-6517
Gasket
8413-3000 8413-3001 8413-3002 8413-3003 8413-3004 8413-3005
Wrench for seat (2)
1280-3012
2)
· 1280-3013
3)
1280-3014
Wrench for guide nipple with
plug (3)
1280-3001
–
Wrench for plug nipple (3.5)
–
1280-3007
1)
Pair including flat gasket (packed unit)
2)
For K
VS
2.5 and higher
3)
For K
VS
3.2 and lower