Grundfos TPE2 Installation And Operating Instructions Manual page 9

Code Type
A
B
C
4.2.1 Codes for shaft seal
Example: BQQE
Code Type
A
B
B
D
G
R
A
Q
B
Q
B
Q
Q
U
E
E P
V
F
Explanation
1450-2200
2900-4000
4000-5900
Explanation
Grundfos type designation
O-ring seal with fixed seal driver
Rubber bellows seal
O-ring seal, balanced
Bellows seal with reduced seal faces
O-ring seal with reduced seal faces
Material of rotating face
Carbon, antimony-impregnated
Carbon, resin-impregnated
Silicon carbide
Material of stationary seat
Carbon, resin-impregnated
Silicon carbide
Tungsten carbide
Material of secondary seal
EPDM
NBR rubber
FKM
FXM
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