16
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
3.5 Main characteristics
The pump size is designated by the displacement volume of 100 revolutions expressed
in litres (or dm
3
) but rounded followed by the nominal port diameter expressed in
millimetres.
TG GS pump size
d
(mm)
B
(mm)
D
(mm)
Vs-100
(dm
3
)
n.max
(min
-1
)
n.mot
(min
-1
)
Q.th
(l/s)
Q.th
(m
3
/h)
v.u
(m/s)
v.i
(m/s)
∆
p
(bar)
p.test
(bar)
2-25
25
13.5
65
1.83
1800
0.5
2.0
6.1
0.7
10
15
1450
0.4
1.6
4.9
0,5
3-32
32
22
65
2.99
1800
0.9
3.2
6.1
1.1
10
15
1450
0.7
2.6
4.9
0.9
6-40
40
28
80
5.8
1800
1.7
6.3
7.5
1.4
10
15
1450
1.4
5.0
6.1
1.1
15-50
50
40
100
14.5
1500
3.6
13.1
7.9
1.8
10
15
1450
3.5
12.6
7.6
1.8
23-65
65
47
115
22.7
1500
5.7
20.4
9.0
1.7
10
15
1450
5.5
19.7
8.7
1.7
58-80
80
60
160
57.6
1050
10.1 36.3
8.8
2.0
10
15
960
9.2
33.2
8.0
1.8
86-100
100
75
175
85.8
960
960
13.7 49.4
8.8
1.7
10
15
185-125
125 100 224
185
750
23
83
8.8
1.9
10
15
725
22
80
8.5
1.8
Legend
d
: port diameter (inlet and outlet port)
B
: width of idler gear and length of rotor teeth
D
: peripheral diameter of rotor (outside diameter)
Vs-100 : displaced volume pro 100 revolutions
n.max : maximum allowable shaft speed in rpm
n.mot : normal speed of direct drive electric motor (at 50Hz frequency)
Q.th
: theoretical capacity without slip at differential pressure = 0 bar
v.u
: peripheral velocity of rotor
v.i
: velocity of liquid in the ports at Qth (inlet and outlet port)
∆
p
: maximum working pressure = differential pressure
p.test : hydrostatic test pressure
Maximum viscosity
Shaft sealing type
Maximum viscosity
(mPa.s) *)
GS
Single mechanical seal
GS with Burgmann MG12
3 000
GS with Burgmann M7N
5 000
*) Remark:
Figures are for Newtonian liquids at operating temperature. The maximum allowable
viscosity between the sliding faces of the mechanical seal depends on nature of liquid
(Newtonian, plastic etc.), the sliding speed of the seal faces and the mechanical seal
construction.
