Caution
RPH
16
Material
(Asia and America)
A 193 Grade B7/B16 /
A 540 Grade B24
A 193 Grade B7/B16
10.9
---
CF6M/Type 316
Material
(Europe)
1.7709/1.6772 (Monix 3K)
C35E+QT
8.8
A4-70
1.4571/1.4021
Pump
size
Bearing
bracket
On casing
stud 902.01
On casing cover
stud 902.15
On bearing bracket
hex. head bolt 901.37
On mech. seal cover
stud 902.02
On impeller impeller nut
922.01 or impeller screw
906
Qty.
Thread
Tightening
torque Nm
Qty. Thread Tighten-
ing
torque
Nm
Qty.
Threa
d
Tighten-
ing
torque
Nm
Qty.
Threa
d
Tighten-
ing
torque
Nm
Qty.
Thread
Tighten-
ing
torque
Nm
25-180
40-180
B02S
12
M 16
163
3)
280
4)
4
M 16
83
4
M 10
45
4
M 16
133
1
M14x1.5
80
5)
25-230
40-230
16
280
40-231
B02L
M16x1.5
130
5)
40-181
50-180
12
M16x1.5
130
40-280
40-281
16
M 20
330
3)
565
4)
40-361
20
565
80-180
100-180
B 03
12
M 16
163
3)
280
4)
4
M 20
168
4
M 12
77
4
M 16
133
1
M20x1.5
250
5)
50-230
80-230
100-230
150-230
M 20
330
3)
565
4)
50-280
80-280
100-280
16
50-360
80-360
20
50-450
M 24
565
3)
970
4)
150-280
200-280
B05S
12
M 24
565
3)
970
4)
4
M 24
290
4
M 16
190
4
M 16
133
1
M24x1.5
350
5)
100-360
150-360
16
970
80-450
100-450
20
200-360
B05L
16
M 24
565
3)
970
4)
4
M 24
290
4
M 16
190
4
M 16
133
1
M30x1.5
600
5)
150-450
200-450
20
150-501
30
M 16
163
3)
/ 280
4)
4
M24
290
4
M16
190
4
M16
133
1
M30x1.5
600
5)
200-401
24
M 16
163
3)
/ 280
4)
200-501
M 20
330
3)
/ 565
4)
250-401
M 16
163
3)
/ 280
4)
250-501
M 20
330
3)
/ 565
4)
150-630
B06
20
M 24
565
3)
4)
4
M24
290
8
M 16
190
4
M20
270
1
M 30x1.5
400
6)
5)
200-670
06
24
565
970
4)
90
8
6
90
0
0
30
5
00
300
5)
250-630
20
250-710
24
3) For material 1.7709 / A 193 Grade B7/B16
4) For material 1.6772 (Monix 3K) / A 540 Grade B24
5) For material 1.4571 / A 276 Type 316Ti
6) For material 1.4021 / A 276 Type 420
The values do not apply, if general assembly drawings or other
instructions state different values.
Re-tighten the above connections 24 hours
after assembly using the torques indicated.
7.5.4
Mechanical seal installation
The following rules must be observed when mounting the
mechanical seal:
Extreme care and cleanliness during installation are of
overriding importance for the trouble-free operation of the
mechanical seal.
The protective wrapping of the contact faces shall only be
removed immediately before assembly takes place.
If the mechanical seal to be installed is not of cartridge design:
After inserting the seat ring, check whether it is plane-parallel in
relation to the casing part. (Max. deviation: 0.02 mm).
The surface of the shaft must be absolutely clean and smooth,
and the mounting edge must be chamfered. When sliding the
rotating assembly on the shaft, take appropriate precautions to
protect the shaft surface from damage.
On pumps with pressurized double mechanical seals the
mechanical seal chamber must be properly vented and the
required pressure specified in the general arrangement
drawing must be applied (also during standstill).
Quench liquid supply must also be ensured during pump
standstill.
If necessary, refer to the supplementary operating instructions!