TP
, TPE
pump
s
TPE E-circulators
7
12
7. TP, TPE pumps
Fig. 3
TP Series pumps
Technical data
Flow rate: up to 300 gpm (68 m
3
h)
Head: up to 65 ft (20 m)
Liquid temperature: –13 (–25 °C) to +284 °F (140 °C)
Max. operating pressure: up to 145 psi (10 bar)
Note:
See Grundfos product guide L-TP-PG-001 for
performance range.
Construction
Grundfos TP, TPE pumps are single-stage,
close-coupled pumps with in-line suction and dis-
charge ports flanges of identical diameter.
The pumps are equipped with a fan-cooled
asynchronous motor. Motor and pump shafts are
connected via a rigid two-part coupling.
The pumps are equipped with an unbalanced
mechanical shaft seal.
The pumps are of the top-pull-out design, i.e. the
power head (motor, pump head and impeller) can be
removed for maintenance or service while the pump
housing remains in the pipework.
As radial and axial forces are absorbed by the fixed
bearing in the motor drive-end, the pump requires no
bearing.
Pumps with bronze pump housing are suitable for
circulation of domestic hot water.
Materials
TP, TPE
Fig. 4
Sectional drawing of a single-phase TP, TPE pump
Material specification
T
M
03
48
75
32
06
T
M
00
92
74
20
02
Pos. Component
Material
AISI, ASTM
1
Pump housing
Cast iron
EN-JL 1040
ASTM 48
CL 30
2
Impeller
Stainless steel
304
3
Shaft
Stainless steel
431
4
Coupling
Cast iron
5
Pump head
Cast iron
EN-JL 1040
ASTM 48
CL 30
Secondary seals EPDM
ASTM 48
CL30
Rotating seal
face
Tungsten carbide
Stationary seat
Carbon
(synthetic resin-impregnated)
tungsten carbide
E-circulator.book Page 12 Friday, October 7, 2011 4:01 PM