Grundfos NB - Type Key, MTB

2.2.2.3 Codes for phase and voltage or other
information
Pos. 17 in NB, NBG type key example.
Code Description
A
E-motor (ECM
4)
), 1 x 200-240 V
B
E-motor (ECM
4)
), 3 x 200-240 V
C
E-motor (ECM
4)
), 3 x 440-480 V
D
E-motor (ECM
4)
), 3 x 380-500 V
W Not for sale in North America
X
No motor or US DOE regulated motor
(CC marked motor)
Y Out of DOE scope
Z E-motor, asynchronous motor
4)
ECM: Electronically Commutated Motor.
2.2.2.4 Codes for speed variant
Pos. 18 in NB, NBG type key example.
Code Description
A
1450-2200 RPM, E-motor (ECM
5)
)
B
2900-4000 RPM, E-motor (ECM
5)
)
C
4000-5900 RPM, E-motor (ECM
5)
)
1 2-pole, 50 Hz (Asynchronous motor)
2 2-pole, 60 Hz (Asynchronous motor)
3 4-pole, 50 Hz (Asynchronous motor)
4 4-pole, 60 Hz (Asynchronous motor)
5 6-pole, 50 Hz (Asynchronous motor)
6 6-pole, 60 Hz (Asynchronous motor)
7 8-pole, 50 Hz (Asynchronous motor)
8 8-pole, 60 Hz (Asynchronous motor)
5)
ECM: Electronically Commutated Motor.
2.2.3
Type key, MTB
Example of type key: MTB 65-200/199A-F-ABQQE
Pos. 1 2 3 4 5 6 7 8
Code MTB 65 -200 /199 A F A BQQV
Pos. Description
1 Pump type
2 Nominal diameter of outlet port (DN)
3 Pump housing size [mm]
4 Actual impeller diameter [mm]
5
Code for pump version
A: Basic version
6
Code pipe connection
F: DIN flange
7
Code for materials
A: Cast iron
8
Code for shaft seal and rubber pump
parts
B: Rubber bellows seal
Q: Silicon carbide (SiC)
E: EPDM
V: FKM
The example describes an MTB 65-200 pump with an
actual impeller diameter of 199 mm, of the basic
version, with DIN flanges, made of cast iron and with
a BQQV shaft seal.
The pump is fitted with FKM O-rings as standard.
13
English (GB)