8 | Baker Hughes
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Installation - Alignment
Alignment Warning
This valve must be properly aligned with the piping to prevent
pipe interference with the disc. After installing the valve, check
disc rotation as follows:
1. Disconnect actuator from disc. To do this, refer to point
8.C. of Installation - Assembly Section to remove clevis pin
from the split clamp arm. Rotate clamp arm to free pin if
necessary.
2. Rotate clamp arm slowly to prevent damage to the disc
sealing edge if interference occurs. If disc can rotate through
90°arc, alignment is correct.
3. Realign valve with pipe if there is interference.
4. Reassemble.
If heavy wall piping or thin wall piping or tubing is used, see other
instructions from this Installation - Alignment section.
Standard Commercial Wrought Steel
Pipe
Use only flat face or raised face flanges. If using iron flanges, limit
bolting torque to prevent fracture of the flange which is not fully
supported by the MiniTork body. Use only carbon steel (ASTM
A307 GrB or equivalent) bolting with iron flanges.
Weld Neck Flanges
Flange bore should be Schedule 40.
Gaskets are required for unlined valves only.
Gasket Inside Diameter (I.D.) should be equal to pipe Outside
Diameter (O.D.).
Figure 3
