Allweiler AEB1E - Tightening Torques; Sound Pressure Level; Pumps

Appendix
9.2.7 Tightening torques
Tightening torque
1)
[Nm] for strength c lass
Thread
size
4.6 5.6 8.8 A4-70
M6 3.5 4.6 6.5
7.7
M8 8.4 11 27.3 18.8
M10 17 22 54 37.3
M12 29 39 93 64.5
M16 71 95 230 159
M20 138 184 464 312
M24 235 315 798 537
M30 475 635 1597 1080
Tab. 25 Tightening torques for screws
1) Applies to standard threads, coefficient of friction μ
total
=
0.14
9.2.8 Sound pressure level
Measuring conditions:
• Distance to the pump: 1 m
• Operation: cavitation-free
• Motor: IEC standard motor
• Tolerance ±3 dB
If the values f or speed and/or differential pressure me ntioned in
the tables below are undershot, the sound pressure a nd sound
power level decrease.
1-stage pumps
Size
Motor
speed
[rpm]
Differential
pressure
∆ p[bar]
Sound
pressure
level
Lp (A) [dB(A)]
25 850 6
50 800 6
51 800 4
75
650 8
100 700 6
<70
100 G
1)
700 12 74.3
101 650 4
103 660 6
150 550 8
200 600 6
<70
200 G
1)
600 12 72.3
Size
Motor
speed
[rpm]
Differential
pressure
∆ p[bar]
Sound
pressure
level
Lp (A) [dB(A)]
201 550 4
203 530 6
300 440 8
380 500 6
<70
380 G
1)
500 12 76.0
381 440 4 < 70
403 420 6 71.4
550 500 6 73.8
551 360 4 71.1
553 500 6 73.8
560 360 8 71.9
703 350 6 73.7
750 400 6 73.7
750 G
1)
400 12 78.4
1000 400 6 73.7
1001 280 4 73.2
1003 400 6
75.5
1200 280 4 73.2
1450 300 6 78.5
1450 G
1)
300 12 78.9
1451 250 4 74.4
1603 270 6 74.5
2300 220 8
75.7
2700 250 4
77.5
2700 G
1)
250 12 78.8
2701 200 4 75.2
3003 210 6 77.9
4250 180 8 77.4
5000 200 6 79.8
5000 G
1) 2)
200 12 82.7
5001 180 4 77.4
5503 180 6 79.0
7800 150 8 79.5
9500 150 6 79.5
15500 125 8 81.4
Tab. 26 Sound pressure level for 1-stage pumps
1) Stator with uniform elastomer wall thickne s s
2) Sound power level Lw (A) [dB(A)] = 95.0 dB(A)
260371 – 176-982/0 BA-2020.05 en-US AE 49