Grundfos NB Installation And Operating Instructions Manual page 10

Pos. Explanation
Rubber parts in pump
E: EPDM
F: FXM (Fluoraz
13
K: FFKM (Kalrez
M: FEPS (PTFE-sheathed silicone O-ring)
O: HNBR
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V: FKM (Viton )
Shaft seal arrangement
14
S: Single seal
Shaft seal in pump
15
Letter code for mechanical shaft seal and shaft seal rubber parts. See Letter codes for shaft seals.
16 Code for rated motor power [kW]. See Codes for rated motor power.
Code for phase and voltage [V] or other information. See Codes for phase and voltage or other
17
information.
18 Code for speed variant [rpm]. See Codes for speed variant.
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