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Rev.4 del 01/2011 O.M.A.C. s.r.l.
1.3.1 Technical features of the B Series lobe positive displacement pump
The table below shows the nominal features of the various dimensions of the B series lobe displacement pump, inserted in the LDPU. The data that make
up the table refer to the pump model, the capacity that each pump model (B100, B105, B110...) elaborates every 100 revolutions, the maximum operation
speed of each pump size, the differential operating pressure, expressed in bar, and the standard dimensions of the opening couplings, expressed in
millimetres and inches.
PUMP
THEORETIC
MAXIMUM
MODEL
CAPACITY
SPEED
lt/100 rpm
rpm
B100
3
1400
B105
7
1000
B110
12
1000
B115
18
1000
B215
23
950
B220
34
950
B325
55
720
B330
70
720
B390
90
720
B430
116
600
B440
155
600
B470
240
500
B490
330
500
B550
400
500
B660
700
500
B680
1050
500
1.3.2 Variation of maximum operating pressure according to temperature
The table below lists the maximum differential pressure values, processed by the B series lobe displacement pump, inserted in the LDPU, according to
the size of the pump (from B100 to B680), according to the temperature of the processed fl uid (from 0-70°C, 90°C, 110°C,..) and according to the type of
rotors fi tted: with clearances between rotor and ST standard pumping chamber, SM increased clearances or clearances for HP high pressures.
The values of these clearances between rotors and pumping chamber are shown in the section 1.3.4.
B100
ST
7
0°C
SM
-
a 70°C
HP
-
ST
5.2
90°C
SM
-
HP
-
ST
4
110°C
SM
-
HP
-
ST
3.4
120°C
SM
-
HP
-
ST
2.2
140°C
SM
-
HP
-
ST
-
160°C
SM
-
HP
-
ST
-
180°C
SM
-
HP
-
MAXIMUM
POWER
kW
rotor clearances ST (standard)
with shafts
S.S. AISI 316 L
DUPLEX
1.5
7
4
10
4
10
5.5
7
7.5
10
7.5
7
18.5
10
18.5
7
18.5
5
30
10
30
7
45
10
45
7
45
5
75
7
75
4
B105
B110
B115
B215
B220
10
10
7
10
7
15
15
12
15
12
-
20
-
20
-
8.8
8.9
6.5
9
6.5
15
15
12
15
12
-
18.8
-
18.9
-
7.6
7.8
5.7
8
5.9
15
15
12
15
21
-
17.6
-
17.7
-
7
7.3
5.5
7.5
5.6
14
14.6
11.7
14.5
11.7
-
17.1
-
17.2
-
6
6.3
5.1
6.5
5
13
13.6
11.3
13.6
11.1
-
16.1
-
16.3
-
-
5.3
5
5.5
4.4
-
12.7
10.8
12.7
10.5
-
15.1
-
15.3
-
-
4.3
4.2
4.5
3.9
-
12.1
9.9
11.8
10.5
-
14.1
-
14.3
-
Via Giovanni Falcone, 8
42048 Rubiera (RE) - Italy
E-mail:info@omacpompe.com SitoWeb:www.omacpompe.com
MAXIMUM OPERATING PRESURE (bar)
rotor clearances SM (increased)
with shafts
S.S. AISI 316 L
DUPLEX
10
-
-
13
15
18
13
15
18
10
12
15
13
15
18
10
12
15
13
15
18
10
12
15
7
10
12
13
15
18
10
12
15
13
15
18
10
12
15
-
7
-
-
-
-
-
-
-
B SERIES MODEL PUMP
B325
B330
B390
B430
B440
10
7
5
10
15
12
10
15
20
-
-
20
9.1
6.5
4.5
9.1
15
12
10
15
19
-
-
19
8.2
6
-
8.4
15
12
-
15
18
-
-
18
7.8
5.7
-
7.9
14.5
11.7
-
14.6
11.7
17.6
-
-
17.5
7
5.2
-
7.2
13.8
11.2
-
13.7
11.1
16.8
-
-
16.6
6.1
4.6
-
6.4
12.9
10.7
-
12.9
10.4
15.8
-
-
15.8
5.2
4.1
-
5.5
12.1
10.1
-
12
14.9
-
-
14.9
O.M.A.C. s.r.l.
Tel.0522/629371 - 629923 Fax 0522/628980
STANDARD
CONNECTION
High pressure
Duplex + Acteon
DN
Inches
-
25
-
40
20
40
-
40
20
40
-
50
20
65
-
80
-
80
20
80
-
100
20
100
-
100
-
125
-
150
-
200
B470
B490
B550
B660
7
10
7
5
7
12
15
12
7
10
-
20
-
-
-
6.4
9.1
6.3
4.4
6.4
12
15
12
7
10
-
19
-
-
-
5.8
8.4
5.9
5.8
5.8
12
15
12
10
10
-
18
-
-
-
5.5
7.8
5.4
3.7
5.5
14.6
11.6
6.8
9.5
-
17.5
-
-
-
4.9
7.2
4.9
3.2
4.9
13.7
11.1
6.4
8.6
-
16.6
-
2.6
-
4.3
6.4
4.2
2.6
4.3
12.7
10.4
6
7.8
-
15.6
-
-
-
3.6
5.4
3.6
2
3.6
9.7
12
9.7
5.5
6.9
-
14.6
-
-
-
Chap.1 - pag.
1"
1" 1/2
1" 1/2
1" 1/2
1" 1/2
2"
2" 1/2
3"
3"
3"
4"
4"
4"
5"
6"
8"
B680
5
7
-
4.4
7
-
3.9
7
-
3.7
6.8
-
3.2
6.4
-
2.6
6
-
2
5.5
-
5
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