5. DATA
IOM manual CTM mag drive pumps
23
*The dimension may vary depending on motor brand
5.3.
Materials, data and limits
Casing and isolation shell
PP-GF (30%) or PVDF
Impeller
PP or PVDF
Lantern (not wetted)
PP-GF (30%)
Static bushings
Ceramic (standard) or SiC
Rotating bushings
PTFE-graphite (standard) or SiC
O-rings
FKM, EPDM, FFKM, FEP/Silicone
Magnets
NdFeB
Motor
IEC standard, 3x400 VAC (other on request), 2900 rpm,
IP55, B34 frame
Pressure rating
CTM20:
PP pumps: PN4 at 20°C, PN2 at 70°C
PVDF pumps: PN4 at 20°C, PN2 at 80°C
CTM25, CTM32, CTM40 and CTM50:
PP pumps: PN6 at 20°C; PN2 at 70°C
PVDF pumps: PN6 at 20°C; PN2 at 90°C
Temperature
PP pumps: 0°C
-
70°C
PVDF pumps: 0°C
-
80°C
(CTM20);
0°C
-
90°C (
CTM25, 32, 40, 50)
Kinematic viscosity
200 cSt (max)
Dynamic viscosity
10 cP (max)
5.4.
Mounting torques and dimensions of screws/nuts
The following tightening torques are recommended :
Screw /
nut type
Description
Pump model
CTM 20-7
CTM 25-8
CTM 25-10 CTM 32-12,5
CTM 40-12,5 CTM 50-12,5
Pos. 141 hexagonal screw
Mounting torque [Nm]
Thread
6
M5
9
M6
9
M6
9
M6
9
M6
9
M6
Pos. 143 hexagonal nut
Mounting torque [Nm]
Thread
6
M5
9
M6
9
M6
9
M6
9
M6
9
M6
Pos. 111 allen screw
Mounting torque [Nm]
Thread
6
M5
6
M5
9
M6
9
M6
14
M8
9
M6
Pos. 1181 allen screw
Mounting torque [Nm]
Thread
-
-
-
-
-
-
-
-
-
-
14
M8
