17
M8
20
M10
40
M12
70
M14
110
M16
160
M20
320
M22
420
M24
550
M27
800
M30
1100
M33
1400
M36
1700
Installation, Operation and Maintenance Manual
MAN 564 Rev. 6
June 2020
Installation
Section 2: Installation
2.5
Pneumatic Connections
!
WARNING
Check that the values of pneumatic supply available are compatible with those reported on
the identification plate of the actuator.
The connections should be made by qualified staff. Use pipes and connections
appropriate as for type, material and dimensions.
•
Properly de-burr the ends of rigid pipes.
•
Properly clean the interior of pipes sending through them plenty of the supply
fluid used in the system.
•
Mould and fasten the connection pipes so that no irregular strains at entries or
loosening of threaded connections occur.
•
Make the connections according to the operating diagram.
•
Check the absence of leakages from pneumatic connections.
NOTICE
If necessary to mount components not in Biffi scope of supply, please check the accessories
mounting hole details in the documents TN 1028 (for metric dimension) or TN 1028U
(for imperial dimension).
Table 9.
Nuts tightening torque
Threading
Tightening torque (Nm)
The screwing values in Table 9 were calculated considering the materials ASTM A320 L7 for
screws or tie rods and ASTM A194 gr.2H for the nuts.