Grundfos NB Serie Instrucciones De Instalación Y Funcionamiento página 9

Example 1, pump design according to EN 733
Example 2, pump design according to ISO 2858
Bronze
H EN-GJL-250
CuSn10
I 1.4408 1.4408
J 1.4408 1.4408
K 1.4408 1.4408
L 1.4517 1.4517
M 1.4408 1.4517
N 1.4408 1.4408
P 1.4408 1.4517
R 1.4517 1.4517
S EN-GJL-250 1.4408
T EN-GJL-250 1.4517
U 1.4408 1.4517
W 1.4408 1.4517
X Special version
Rubber parts in pump
Material of O-ring for pump cover
E EPDM
®
F FXM (Fluoraz )
®
K FFKM (Kalrez )
M FEPS (PTFE-sheathed silicone O-ring)
X HNBR
®
V FKM (Viton )
Shaft seal arrangement
S Single seal
Code for mechanical shaft seal and shaft seal rubber parts
EN-GJL-250 1.4401
1.4517 1.4462
Carbon-graphite-
filled PTFE 1.4462
®
(Graflon )
1.4517 1.4401
1.4517 1.4462
1.4517 1.4401
Carbon-graphite-
filled PTFE 1.4401
®
(Graflon )
Carbon-graphite-
filled PTFE 1.4401
®
(Graflon )
Carbon-graphite-
filled PTFE 1.4462
®
(Graflon )
Bronze/brass 1.4401
Bronze/brass 1.4462
1.4517 1.4462
Carbon-graphite-
filled PTFE 1.4462
®
(Graflon )
NB 32 -125 .1
NBG 125 -100 -160 /160-142 A F 2 N K S DQQK
/142 AE F 1 A E S BAQE
9