●
Position the pumps and the drive with respect to each other.
○
Comply with the permissible mounting position.
○
Comply with the permissible direction of rotation.
When operating units with gland packings, make sure that the packing is
accessible without difficulty to allow for easy re-stressing of the packing
ring.
Rotation and delivery direction: See
chapter 3 “Device description”
●
Tighten all fastening screws with the specified torque.
○
Keep to the permissible displacement values of the coupling.
○
Rule out any distortion of the device.
○
Pay attention to sufficient screw-in depth of the fastening screws.
Tightening torques [Nm]
Thread size
(1)
M6
M8
M10
M12
M16
M20
M24
Counter-thread
Aluminium
4.6
11
22
39
95
184
315
Counter-thread
Cast iron/Steel
10
25
49
85
210
425
730
(1)
Screws/Nuts with min. strength class 8.8/8
●
When operating units with gland packings, make sure that the pre-stress
on the packing rings is not too high.
○
If necessary, loosen gland follower nuts and re-tighten until hand-
tight.
●
Make sure no foreign bodies can get into the device.
●
Take measures against accidental touching of rotating parts.
●
Take measures against accidental touching of hot surfaces (> 60 °C).
●
On devices with quench, mount a tank for the liquid seal.
○
Mount the tank above the device.
○
The connection on the device must point upward.
○
Checking the fluid level must be possible at any time.
A second port on the unit enables purging of the quench chamber and
draining of the liquid seal.
Gear pump BT / BTH
88026290002-04 2021-02-05
29
