TP, TPE pumps are designed for applications such as
• district heating systems
• heating systems
• air-conditioning systems
• district cooling systems
• water supply
• industrial processes
• industrial cooling.
The pumps are available with either standard motors
(TP) or electronically speed-controlled motors (TPE).
The pumps are all single-stage, in-line centrifugal
pumps with standard motor and mechanical shaft seal.
The pumps are of the close-coupled type, i.e. pump
and motor are separate units. Consequently, the
pumps are less sensitive to impurities in the pumped
liquid than similar pumps of the canned rotor type.
The TP, TPE range is divided into the following three
groups:
• TP pumps (uncontrolled standard pumps).
• TPE Series 2000 pumps (speed controlled pumps
with factory-fitted pressure sensor).
• TPE Series 1000 pumps (speed controlled pumps).
This product guide covers Series 2000 and 1000
speed controlled pumps.
Please see Grundfos publication L-TP-PG-001 for
TP (uncontrolled standard pump) product range
and details.
TPE Series 1000 pumps
The difference between the TP and the TPE Series
1000 pump range is the motor. The motors of TPE
Series 1000 pumps have a built-in VFD.
Via an external signal (from a sensor or a controller),
TPE Series 1000 pumps allow for any configuration
and control method required: constant pressure, constant temperature or constant flow.
TPE Series 1000 pumps are based on TP pumps. The
pump materials are the same as those of the TP pump
range.
For further information about TPE Series 1000 pumps,
see page 17.
Why select a TPE pump?
A TPE pump with electronic, speed-controlled
adaptation of performance offers these obvious
benefits:
• energy savings
• increased comfort
• control and monitoring of pump performance.
• communication with the pump.
TPE Series 2000 pumps
The main differences between the TP and the TPE
Series 2000 pump range are the motor and the factory-fitted integrated differential-pressure sensor.
The motors of TPE Series 2000 pumps have a
built-in variable frequency drive (VFD) designed to
continuously regulate the pressure to the flow.
The TPE Series 2000 range is recognized as a
pre-configured solution for quick and safe installation.
TPE Series 2000 pumps are based on TP pumps. The
pump materials are the same as those of the TP pump
range.
For further information about TPE Series 2000 pumps,
see page 14.
4
TPE E-circulators
Type key
ExampleTPE32-160/4S-U-G-A-BUBE
Pump range
Electronically speed-controlled pump series 1000/2000
Nominal diameter of suction and discharge
flanges (mm)
Maximum head [dm (decimeters)]
Pole number
S = TPE Series 2000 (with factory-fitted differential pressure sensor)
U = NEMA motor dimensions
G = ANSI or US flange
Code for materials:
A = Basic version
Z = Bronze pump housing and motor stool
Code for shaft seal
(incl. other plastic and rubber components in the pump except the neck ring)
Codes for shaft seal
1
Pump data
ExampleBBUE
Grundfos type designation
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
Material of rotating face
A = Carbon, antimony-impregnated
B = Carbon, synthetic resin-impregnated
Q = Silicon carbide
U = Tungsten carbide
Material of stationary seat
B = Carbon, synthetic resin-impregnated
Q = Silicon carbide
U = Tungsten carbide
Material of secondary seal
E = EPDM
V = FKM
5
2
10152030406080100150
Q [US GPM]
10
20
30
40
50
60
70
[ft]
H
3456789 101020
Q [m³/h]
4
5
6
7
8
9
1010
20
[m]
H
TP
2-pole, 60 Hz
50-160
50-80
40-240
40-160
40-8032-80
10152030406080100150200300
Q [US GPM]
6
7
8
9
10
11
12
13
14
[ft]
H
345678 9 1010203040
Q [m³/h]
2
3
4
[m]
H
TP
4-pole, 60 Hz
100-4080-4050-4040-4032-40
Performance range
2. Performance range
Performance range, 2-pole, 3400 RPM
(See page 23 for performance curves)
TPE E-circulators
TM02 5104 0306
Performance range, 4-pole, 1690 RPM
(See page 23 for performance curves)
6
TM02 5103 0306
TPE E-circulators
3. Product range
TPE Series 2000
TPE SERIES 2000 with differential pressure sensor
Cast iron
product
number
GF 15/26 flange mount
TPE32-40/49113612991136134.33TEFC1208-230
TPE32-80/29113610491136109.5TEFC1208-230
GF 40/43 flange mount
TPE32-160/29113610591136110.75TEFC1208-230
TPE40-40/49113613091136135.33TEFC1208-230
TPE40-80/29113610691136111.75TEFC1208-230
TPE40-160/29113610791136112.75TEFC1208-230
TPE40-240/291136108911361131.5TEFC1208-230
GF 50 flange mount
TPE50-40/49113613191136136.33TEFC1208-230
TPE50-80/29113617891136114.75TEFC1208-230
TPE50-160/291136025911361151.5TEFC1208-230
GF 80 flange mount
TPE80-40/49113613291136137.5TEFC1208-230
GF 100 flange mount
TPE100-40/491136026911361391TEFC1208-230
Bronze
product
number
Motor
HpTypePhVolt
3
Product range
TPE Series 1000
TPE SERIES 1000 without differential pressure sensor
Cast iron
product
number
GF 15/26 flange mount
TPE32-40/491136140911361461/3TEFC1208-230
TPE32-80/29113611691136122 1/2TEFC1208-230
GF 40/43 flange mount
TPE32-160/29113611791136123 3/4TEFC1208-230
TPE40-40/491136141911361471/3TEFC1208-230
TPE40-80/29113611891136124 3/4TEFC1208-230
TPE40-160/29113611991136125 3/4TEFC1208-230
TPE40-240/291136120911361261-1/2TEFC1208-230
GF 50 flange mount
TPE50-40/491136142911361481/3TEFC1208-230
TPE50-80/29113617991136127 3/4TEFC1208-230
TPE50-160/291136121911361281-1/2TEFC1208-230
GF 80 flange mount
TPE80-40/491136143911361491/2TEFC1208-230
GF 100 flange mount
TPE100-40/491136145911361511TEFC1208-230
Bronze
product
number
Motor
HpTypePhVolt
7
4
Max. curve
Min. curve
Speed regulation
TPE E-circulators
4. Speed regulation
Affinity equations
Normally, TPE pumps are used in applications
characterized by a variable flow. Consequently, it is
not possible to select a pump that is constantly operating at optimum efficiency.
In order to achieve optimum operating economy, select
the pump on the basis of the following criteria:
• The max. required duty point should be as close as
possible to the QH curve of the pump.
• The flow rate at the duty point required should be
close to the optimum efficiency (eta) for most
operating hours.
Between the min. and max. performance curve TPE
pumps have an infinite number of performance curves
each representing a specific speed. Therefore it may
not be possible to select a duty point close to the max.
curve.
WinCAPS and WebCAPS
WinCAPS and WebCAPS are both selection programs
offered by Grundfos.
The two programs make it possible to calculate a TPE
pump’s specific duty point and energy consumption.
By entering the dimensional data of the pump,
WinCAPS and WebCAPS can calculate the exact duty
point and energy consumption. For further information,
please contact Grundfos or see Grundfos’ homepage
www.grundfos.com.
Fig. 1 Min. and max. performance curves
In situations where it is not possible to select a duty
point close to the max. curve, affinity equations can be
used. The head (H), the flow (Q) and the input power
(P) are the appropriate variables you need to be able
to calculate the motor speed (n).
Note:
The approximated formulas apply on condition that the
system characteristic remains unchanged for n
and that it is based on the formula H = k x Q
is a constant.
The power equation implies that the pump efficiency is
unchanged at the two speeds. In practice this is not
quite correct.
Finally, it is worth noting that the efficiencies of the
variable frequency drive and the motor must be taken
into account if a precise calculation of the power saving resulting from a reduction of the pump speed is
wanted.
and nx
n
2
, where k
TM01 4916 4803
8
TPE E-circulators
50
60
70
80
90
100
110
[%]
P2
3280 7382 11483 15584 [ft]
5. Operating conditions
Working pressure
Maximum working pressure 145 psi (10 bar).
Fluid temperature
Maximum fluid temperature +284 °F (140 °C).
Relative humidity
Maximum 95%.
Ambient temperature
Maximum ambient temperature +104 °F (40 °C).
Note:
When motors installed more than 3000 ft (914 m)
above sea level, the rated motor output will fall due to
the low
density and consequent low cooling effect of the air. In
such cases, it may be necessary to use an oversize
motor with a higher output.
5
Operating conditions
Fig. 2 Relationship between motor output (P2)
and altitude.
TM03 3446 0506
9
6
Pumped liquids
6. Pumped liquids
TPE E-circulators
Pumped liquids
TP, TPE pumps are suitable for pumping thin, clean,
non-aggressive and non-explosive liquids, not
containing solid particles or fibers that may
mechanically or chemically attack the pump; please
see "List of pumped liquids" below.
Examples of liquids:
• Central heating system water (we recommend that
the water meets the requirements of accepted standards on water quality in heating systems).
• cooling liquids.
• domestic hot water.
• industrial liquids.
• softened water.
If glycol or another antifreeze agent is added to the
pumped liquid, the pump must have a shaft seal of the
type RUUE.
The pumping of liquids with densities or kinematic
viscosities higher than those of water can cause
• a considerable pressure drop
• a drop in the hydraulic performance
• a rise in the power consumption.
In these situations, equip the pump with an oversize
motor. If in doubt, contact Grundfos.
If the water contains mineral oils or chemicals, or if
other liquids than water are pumped, choose the
O-rings accordingly.
Please note that shaft seals operating close to their
maximum temperature will require regular
maintenance, i.e. replacement.
List of pumped liquids
Grundfos TP pumps are designed for circulation
systems with constant flow; TPE pumps are for systems with variable flow.
Thanks to their design, these pumps can be used in a
wider liquid temperature range than pumps of the
canned rotor type.
A number of typical liquids are listed page 11.
Other pump versions may be used, but we consider
the ones stated in the list to be the best choices.
The list is intended as a general guide only, and it
cannot replace actual testing of the pumped liquids
and pump materials under specific working conditions.
If in doubt, contact Grundfos.
However, use the list with some caution as these or
other factors may affect the chemical resistance of a
specific pump version:
• concentration of the pumped liquid
• liquid temperature or
• pressure.
Legend for notes in the list
A
B
CThe liquid must be oxygen-free (anaerobic).
DRisk of christallization/precipitation in shaft seal.
EInsoluble in water.
F
GBronze housing/impeller required.
HRisk of formation of ice on the standby pump.
May contain additives or impurities that may cause shaft
seal problems.
The density and/or viscosity differ from those of water.
Consider this when calculating motor and pump performance.
The shaft seal rubber parts must be replaced with
FKM rubber.
Pump typeShaft sealTemperature
BUBE
TP, TPE
AUUE
RUUE
10
32°F to
+284 °F
(0 °C to 140 °C)
+194 °F
32°F to
(0 °C to 90 °C)
–13 °F to
+194 °F
(–25 °C to 90 °C)
TPE E-circulators
6
Pumped liquids
-
Shaft seal
TP
BUBE
AUUE
AUUE
RUUE
AUUE
RUUE
AUUE
RUUE
AUUE
RUUE
AUUE
RUUE
AUUE
RUUE
BUBE
AUUE
BUBV
AUUV
BUBV
AUUV
BUBV
AUUV
BUBV
AUUV
BUBV
AUUV
AUUE
(AUUV)
AUUE
(AUUV)
BUBE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
Pumped liquidsNotes
Water
Groundwater
Boiler feed water<+248 °F (+120 °C)BUBE
District heating water<+248 °F (+120 °C)BUBE
Condensate
Softened waterC
Brackish waterG
Coolants
Ethylene glycolB, D, H
Glycerine (glycerol)B, D, H
Potassium acetate
Potassium formate
Propylene glycolB, D, H
Brine-sodium chloride
Synthetic oils
Silicone oilB, E
Vegetable oils
Corn oilB, F, E
Olive oilB, F, E
Peanut oilB, F, E
Grape seed oil
Soya bean oilB, F, E
Cleaning agents
Soap (salts of fatty
acids)
Alkaline degreasing
agent
Oxidants
Hydrogen peroxide<+104 °C, <2 %
Salts
Ammonium bicarbonateA
Calcium acetateA, B
Potassium bicarbonateA
Potassium carbonateA
Potassium
permanganate
B, D, C, H+122 °F (+50 °C),
B, D, C, H+122 °F (+50 °C),
B, D, C, H+41 °F (+5 °C),
D, B, F,
E
A, E, (F)
A, E, (F)
A
Additional
information
<+194 °F (+90 °C)AUUE
>+194 °F (+90 °C)BUBE
<+194 °F (+90 °C)AUUE
>+194 °F (+90 °C)BUBE
<+194 °F (+90 °C)AUUE
>+194 °F (+90 °C)BUBE
pH>6.5,
+40 °F (+4 °C),
1000 ppm Cl
+122 °F (+50 °C),
50 %
+122 °F (+50 °C),
50 %
50 %
50 %
30 %
<+176 °F
(80 °C)
<+176 °F
(80 °C)
<+176 °F
(80 °C)
<+68 °F (+14 °C),
<15 %
<+68 °F (+14 °C),
<30 %
<+68 °F (+14 °C),
<20 %
<+68 °F (+14 °C),
<20 %
<+68 °F (+14 °C),
<10 %
Pumped liquidsNotes
Potassium sulfateA
Sodium acetateA
Sodium bicarbonateA
Sodium carbonateA
Sodium nitrateA
Sodium nitriteA
Sodium phosphate (di)A
Sodium phosphate (tri)A
Sodium sulfateA
Sodium sulfiteA
Alkalis
Ammonium hydroxide
Calcium hydroxideA
Potassium hydroxideA
Sodium hydroxideA
3)
The shaft seal is not standard, but available on request.
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
Additional
information
<+68 °F (+14 °C),
<20 %
<+68 °F (+14 °C),
<100 %
<+68 °F (+14 °C),
<2 %
<+68 °F (+14 °C),
<20 %
<+68 °F (+14 °C),
<40 %
<+68 °F (+14 °C),
<40 %
<+212 °F (100 °C),
<30%
<+194 °F (90 °C),
<20%
<+68 °F (+14 °C),
<20%
<+68 °F (+14 °C),
<1%
<+212 °F (100 °C),
<30%
<+212 °F (100 °C),
<10%
<+68 °F (+14 °C),
<20%
<+104 °F (40 °C),
<20%
Shaft seal
TP
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
AUUE
Pumped liquids
11
7
TP, TPE pumps
TPE E-circulators
7. TP, TPE pumps
Materials
TP, TPE
Fig. 3 TP Series pumps
Technical data
Flow rate: up to 300 gpm (68 m3h)
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 discharge 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.
TM03 4875 3206
Fig. 4 Sectional drawing of a single-phase TP, TPE pump
Pumps with bronze pump housing are suitable for
circulation of domestic hot water.
12
TPE E-circulators
7
Mechanical shaft seal
Three types of unbalanced mechanical shaft seal are
available as standard:
• BUBE
The BUBE shaft seal is a Grundfos rubber bellows
seal with tungsten carbide/carbon seal faces and
secondary seals of EPDM (standard seal).
• RUUE
The RUUE shaft seal is a Grundfos O-ring seal with
reduced tungsten carbide/tungsten carbide seal
faces and secondary seals of EPDM.
• AUUE
The AUUE shaft seal is a Grundfos O-ring seal with
fixed seal driver, tungsten carbide/tungsten carbide
seal faces and secondary seals of EPDM.
Information on a selection of common pumped liquids
with recommended shaft seals is shown on page 11.
Shaft seal specification
Unbalanced shaft
seal
Shaft diameter12 and 16 mm
Rubber bellowsEPDM
Seal faces
Special shaft seals are available for partly conditioned
water or other liquids containing abrasive or
crystallizing particles. See page 11.
TPE
Version NU according to EN
12756
Tungsten carbide/carbon
Tungsten carbide/
tungsten carbide
Silicon carbide/
silicon carbide
Connections
Pumps up to 2” discharge has US standard flanges;
3” and higher discharge flanges are 125 lb. ANSI
connection.
Control
Electronically controlled TPE pumps are suitable for
demand-dependent performance control.
TPE pumps have the following features and
benefits:
TP, TPE pumps
Optimized hydraulics for high efficiency
- reduced power consumption.
TPE pumps with built-in variable frequency drive
- 2-pole and 4-pole TP pumps from 0.33 to 1.5 Hp
single phase are available as TPE pumps with
variable frequency drive. For further information,
see page 22.
Top-pull-out design
- easy dismantling in case of service.
In-line design
- contrary to end-suction pumps, in-line pumps
allow a straight pipework and thus often reduced
installation costs.
Pump housing and pump head are electrocoated
- high corrosion resistance.
Electrocoating includes:
1. Alkaline cleaning
2. Pre-treatment with zinc phosphate coating
3. Cathodic electrocoating (epoxy)
4. Curing of paint film at 392-482 °F (200-250 °C).
For low-temperature applications at a high
humidity, Grundfos offers pumps with extra
surface treatment to avoid corrosion. These
pumps are available on request.
Stainless steel impeller and neck ring
- wear-free operation with high efficiency.
13
8
0Q [US GPM]
0
H
[ft]
100%
25%
TPE Series 2000 pumps
TPE E-circulators
8. TPE Series 2000 pumps
Applications
TPE Series 2000 pumps have integrated speed control
for automatic adaptation of performance to current
conditions.
This ensures that the energy consumption is kept at a
minimum.
TPE Series 2000 pumps can operate in any duty point
within the range between 25 % and 100 % speed.
TM03 0348 4904
Fig. 5 TPE
Technical data
Flow rate:up to 200 gpm (45 m3h)
Head:up to 60 ft (18 m)
Liquid temperature:–13 to +284 °F
(–25 ° to 140 °C)
Max. operating pressure:145 psi (10 bar)
Motor sizes (single-phase): 0.33 to 1.5 hp
Construction
TPE Series 2000 pumps are based on TP pumps.
The main differences between the TP and the TPE
Series 2000 pump range are the motor and the
factory-fitted integrated differential pressure sensor.
The motor of TPE Series 2000 pumps has a built-in
variable frequency drive designed to continuously
regulate the pressure based on the flow demand.
The TPE Series 2000 range is recognized as a
pre-configured solution for quick and safe installation.
For further information on construction and materials
of TPE Series 2000 pumps, see page 12.
In the QH-chart the 100 %-curve corresponds to the
curve for a pump fitted with a standard fixed-speed
motor.
Depending on the nature of the application, TPE
Series 2000 pumps offer energy-savings, increased
comfort or improved processing.
TPE Series 2000 pumps are suitable for applications
where you want to control the pressure.
TM03 3609 0506
14
TPE E-circulators
H
QQ
0
1
2
3
4
5
8
Differential proportional pressure
TPE Series 2000 pumps are factory-set to proportional
pressure. We recommend proportional pressure control in systems with relatively large pressure losses as
it is the most economical control mode.
TPE Series 2000 pumps set to proportional pressure
control continuously adjust the pump head to the
system water requirement.
The charts below show possible control modes of TPE
Series 2000 pumps in different applications.
Control modeApplication
Differential proportional pressure
Systems with two-way valves
- the head against closed valve is half the
setpoint.
Differential constant pressure
Systems with two-way valves.
Pump selection guidelines
Differential proportional pressure control
TPE 2000 pump operating range in differential pressure control mode is between 3/4th of the maximum
head (shut off) to 1/4th of the maximum head. Select
pump to operate within this range when pump is running full load speed. With differential proportional control, pump will follow a straight line between set point
and and half of the set point at closed valve as shown
below.
TPE Series 2000 pumps
TM03 3670 0606TM03 3671 0606
Constant curve
Single-pipe heating system.
Systems with three-way valves.
Heating and cooling surfaces.
Chiller pumps
Control options
Communication with TPE Series 2000 pumps is
possible via:
• a central building management system
• remote control (Grundfos R100) or
• a control panel.
The purpose of controlling TPE Series 2000 pumps is
to monitor and control the pressure.
For further information on control options of TPE
pumps, see page 20.
Constant differential pressure control
The setting range for constant pressure control is
between maximum head to 1/8th of the maximum
head.
H
5
4
3
2
1
0
Q
Q
15
8
TPE E-circulators
TPE Series 2000 pumps
Overview of functions
E-pump functionsTPE Series 2000 with single-phase MLE
Setting via control panel:
Setpoint
Start/stop
Max. curve
Min. curve
Alarm reset
Constant/proportional pressure
Setpoint
Start/stop
Max. curve
Min. curve
Alarm reset
Controlled/uncontrolled
Constant/proportional pressure, constant curve
Controller constants Kp, Ti
External setpoint signal
Signal relay function
Pump number (for bus communication)
Stop function
Sensor range and signal
Duty/standby
Operating range (min./max. speed)
Reading via R100:
Setpoint
Operating mode
Actual sensor value
Pump speed
Actual power consumption
Energy consumption
Running hours