Technical data

16-4 Notes Application MHD Sychronous motors
DOK-MOTOR*-MHD********-PR05-EN-P
Option sealing air “sealing air: principle”
connection
Sealing air connectors are available for MHD motors. They are attached
to the motor by simply replacing the motor flange socket cover. The
overpressure inside the motor prevents penetrating oils, aggressive
coolants, and the like from entering.
Note: When mounting the motor flange socket covers with sealing
air connector, ensure that the O-rings are properly seated. The
degree of protection required is ensured only with correct
assembly.
0,2 bar
2
3
1
1
1
4
PrinzipSperrluft.fh10
(1): Splashing water, coolant lubricant
(2): Compressed-air line (plastic pipe, type PA 4 x 0.75, or equivalent)
(3): Excess pressure inside the motor
(4): Sealing air connector accessory
Fig. 16-6: Diagram illustrating the sealing air principle
Pressure 0.1...0.2 bar, max. 0.3 bar
Air free from dust and oil
relative air humidity 20...30%
To ensure the IP 67 degree of protection, the following tightening torques
of the cover screws must be kept during mounting:
Set of accessories Tightening torque in Nm
INS0613 1,0
INS0480 3,0
INS0380 3,0
Fig. 16-7: Tightening torques
Bosch Rexroth AG
Bartweg 13
D-30453 Hannover
Telefon [phone]
Telefax [phone]
Compressed-air data:
Tightening torques
Supplier’s recommended plastic
pipe