RMG TME 400-VM Operating Manual page 29

Danger
Gas escape due to incorrect seal
If incorrect flange seals are used for the assembly of turbines, an explosive
gas mixture can form due to leaks.
Danger of poisoning and explosion!
In addition, the stress on the flange is increased to an impermissible level
when tightening the thread bolts.
Ensure secure fastening/attachment of the TME 400 during assembly in order
to avoid crushing. Ensure that you keep your fingers (or other body parts)
away from these openings and gaps when pulling the flanges together.
1.4.2.2 Screws
-10°C to +80°C
Pressure
levels
up to and Screws according to
including DIN EN ISO 4014
40 bar in material 5.6
Nuts according to
DIN EN ISO 4032
in material 5-2
40 bar or Threaded bolts
higher according to ANSI B1.1
material
ASTM A 193 degree
B7,
Nuts according to
ANSI B1.1
material
ASTM A 194 degree
2H,
For flanges according to ASME to be observed > -10°C:
Screw material SA.193 B7/B7M according to ASTM A193 Grade B7 or comparable
materials.
Temperature ranges for screws and nuts
Option 1
Screws according to
DIN EN ISO 4014
in material 25CrMo4,
Nuts according to
DIN EN ISO 4032
in material 25CrMo4
Threaded bolts
according to ANSI B1.1
material
ASTM A 320 degree
L7,
Nuts according to
ANSI B1.1
material
ASTM A 320 degree
L7,
-40°C to +80°C
Option 2
Threaded bolts Reduced shaft
according to screws
ANSI B1.1 according to DIN
material 2510
42CrMo4 material
25CrMo4,
Nuts according to
ANSI B1.1 Nuts according to
material DIN 2510
42CrMo4 material
25CrMo4
Manual TME400-VMF · EN11 · January 22nd, 2024
1 Introduction
25
Option 3