Grundfos TP - Page 8

Codes for shaft seal
Code
example
Descriptio
n
Code explanation
B
Shaft seal
type
A: O-ring seal with fixed
seal driver
B: Rubber bellows seal
D: O-ring seal, balanced
G: Bellows seal with
reduced seal faces
R: O-ring seal with
reduced seal faces
Q
Material of
rotating
face
A: Carbon, antimony-
impregnated
B: Carbon, resin-
impregnated
Q: Silicon carbide
Q
Material of
stationary
seal
B: Carbon, resin-
impregnated
Q: Silicon carbide
U: Tungsten carbide
E
Material of
secondary
seal
E: EPDM
P: NBR rubber
V: FKM
F: FXM
Codes for rated motor power
Pos. 12 in TP, TPD type key example.
Code
Description
[hp] [kW]
A 0.16 0.12
B 0.25 0.18
C 0.33 0.25
D 0.5 0.37
E 0.75 0.55
F 1 0.75
G 1.5 1.1
H 2 1.5
I 3 2.2
J 4 3
K
5 (5.5
1
) 3.7 (4
1
)
L 7.5 5.5
M 10 7.5
N 15 11
O 20 15
Code
Description
[hp] [kW]
P 25 18.5
Q 30 22
R 40 30
S 50 37
T 60 45
U 75 55
V 100 75
W 125 90
X
Bare shaft
pump
Y
> 200
2
> 150
2
1 150 110
2 175 132
3 200 150
4
215
3
160
3
5
250
3
185
3
1
Value in bracket is for the standard IEC motor size.
Value outside bracket is for the motor size according
to NEMA standards.
2
Used for pumps where the pump shaft input power
exceeds 200 hp (150 kW) and is not regulated under
the DOE pump rule.
3
Special cases with power sizes above 200 hp (150
kW) which are still regulated under the DOE pump
rule. For example: Pump has a P2 value of 198 hp
(147.6 kW) in its duty point (in DOE scope) but
customer wants the 215 hp (160 kW) motor instead of
the 200 hp (150 kW). The pump is in scope of the
DOE regulation and requires a PEI value and a motor
code.
8
English (GB)