GRUNDFOS DISTRICT HEATING

www.grundfos.com

Being responsible is our foundationThinking ahead makes it possible

Innovation is the essence

District Heating the Grundfos Way

– meeting all needs

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Flow Thinking – making district heating better

Grundfos is the world’s leading pump manufacturer, and has

played a major role in the district heating industry for many years.

As part of this role, Grundfos provides its customers with the

most comprehensive range of district heating products available

anywhere, circulating hot water to factories, offices, hospitals,

hotels and homes. Grundfos district heating is backed by in-depth

experience and know-how as well as our capacity to optimise

the whole district heating system rather than merely a single pump

installation.

We have one single consistent approach, and we call it Flow Thinking.

This is the Grundfos way of ensuring that we always provide

our customers with the best possible district heating solutions.

Working in partnership

Flow Thinking also means that we are committed to working in part-

nership with our customers, to ensure that our solutions meet all

their requirements – from the pumps, application software and con-

trol systems to all the service and support facilities required both now

and in the future.

Grundfos meets all district heating needs

Grundfos is the only pump supplier in the world that provides a full range of solutions to the needs of companies in the

district heating business. Whatever the requirement – Grundfos has a solution. This includes pumps, control systems, sup-

port tools and the experience to combine these into the most efficient district heating solution.

Glandless pumps Grundfos MAGNA/UPE/UPSTemperature range -10°C to +120°CPressure range PN 10 (10 bar)Power range 0.085 kW to 1.5 kWSpeed Speed-controlled or 3-speedPump housing Cast iron or bronzeVariants Twin pumps available

End suction pump Grundfos NB/NK (E)Temperature range -25°C to +140°CPressure range PN 16 Power range 0.37 kW to 315 kWMotor Standard IECSpeed Speed controlled or single speedPump housing Cast iron or bronze (depending on model)Impeller Cast iron or bronze

In-Line pumps Grundfos GTI/IFVTemperature range -25°C to +150°CPressure range PN 10, 16, 25Power range 3 kW to 600 kWMotor Standard IECSpeed Single speed (external speed control)Pump housing Cast ironImpeller Cast iron or bronzeVariants Close or spacer coupled

Benefits Low Life Cycle Cost Very wide product range Easy installation Easy service Saves floor space

Benefits Low Life Cycle Cost Wide product range Easy installation (block)

In-Line pumps Grundfos TP/LM/LP/CLM (E)Temperature range -25°C to +140°CPressure range PN 10, 16, 25Power range 0.12 kW to 45 kWMotor Standard IECSpeed Speed controlled or single speedPump housing Cast iron or bronze (depending on model)Variants Twin pumps available

Benefits Low Life Cycle Cost Wide product range Easy installation Easy service Saves floor space

Benefits Very low noise level Maintenance free Low Life Cycle Cost Wide product range Easy installation

H [m]

Q [m3/h]

UPE/UPS

“For us, district heating means knowledge transformed into strong partnerships!”

H [m]

Q [m3/h]

TP/LM/LP/CLM (E)

20

6

2

4 10150

50

10

10 6000200 2000

5

40 80

20

6

2

4 10 40 80

20

6

2

4 10 40 80

H [m]

Q [m3/h]

IFV/GTI

20

6

2

4 10150

50

10

10 6000200 2000

5

40 80

20

6

2

4 10 40 80

20

6

2

4 10 40 80

Q [m3/h]

UPS S 200

20

6

2

4 10150

50

10

10 6000200 2000

5

40 80

20

6

2

4 10 40 80

20

6

2

4 10 40 80

H [m]

20

6

2

4 10150

50

10

10 6000200 2000

5

40 80

20

6

2

4 10 40 80

20

6

2

4 10 40 80

1 2

200H [M]

100

50

20

10

5

104 30 80 200 600 1500 3000 6000

Q [m3/h]

Power plants

Pump types: GTI/IFV/ NB/NK(E)Head upto: 150 mFlow upto: 2000 m3/h

Substations / Boiler houses

Pump types: GTI/IFV/NB/ NK/LM/LP/TP(E)Head upto: 100 mFlow upto: 1000 m3/h

Substations in buildings / Mixing loops in buildings

Pump types: UPS/UPE/ LM/LP/TP(E)Head up to: 30 mFlow up to: 100 m3/h

Power plantsSubstations/Boiler houses Substations in buildings / Mixing loops in buildings

UPS

Seri

es 2

00

UPE

Seri

es 2

00

0

TPE

Seri

es 2

00

0

In-L

ine

In-L

ine

E-pu

mps

End

suct

ion

End

suct

ion

pp

E-pu

mps

CR/C

RE

Hyd

ro 2

00

0

Pump system

Main pumps

Boiler shunts

Temperature shunt

Flow filter

Lull heating

Exhaust gas exchanger

Mixing loops

D tiDomestichot water recirculation

Pressure holding

Pum

pty

pe

A typical district heating system

consists of many parts, including:

power plants

substations and

boiler houses

substations in individual

buildings

installations in individual

buildings and houses

“For us, district heating means overall viewtransformed into an intelligent selection!”

“For us, district heating means calculationtransformed into saving in energy!”

Strength and scope

Grundfos has the strength and the scope to meet the entire

range of district heating needs, right from the largest to the

smallest.

The table to the left provides you with an overview of the dif-

ferent Grundfos pump types, and the purposes they serve in

a typical district heating system.

System 11 constant-speed pump + 1 standby pumpSelected pump: 2 x end suction 80-250Control panel: Motor protectionAccess to system data: NonePrice index: 100 (4,500 EURO))Yearly energy consumption: 52,821 kWh/year

System 22 speed-controlled pumps + 1 standby pumpSelected pump: 3 x Grundfos TPE 80-240Control: PMUAccess to system data: YesPrice index: 162 (7,290 EURO)Yearly energy consumption: 26,516 kWh/year

Electronic speed controlequals low Life Cycle CostsIn district heating, large amounts of energy are expended

in transporting the hot water from one place to another.

Grundfos electronic speed control systems are designed to

make it possible to achieve substantial reductions on the

energy expenditure involved in pump operations.

Electronic speed control makes sure that the operating pro-

file of each pump matches the load at any given time. This

is achieved with frequency converters and controls fitted

internally on all pumps up to 22 kW, and externally on all

larger models.

Grundfos electronic speed control systems minimise energy

costs, and are a crucial part of the constant Grundfos focus

on the overall Life Cycle Costs of pump systems. In many

cases there is a payback time of 1–2 years on the extra cost

for the speed controlled pump solution.

Energy saving warranty

We know from experience that Grundfos district heating

pumps provide our customers with significant savings in

operating costs, and thus lower overall Life Cycle Costs.

Because of their extremely large size, Grundfos GTI/IFV

In-Line pumps therefore provide major savings potential.

And we are so confident about their performance that

Grundfos provides a special warranty on these pumps,

undertaking to refund any shortfall between the energy

consumption specifications and actual working results.

EURO120,000

100,000

80,000

60,000

40,000

20,000

0

Payback time

0 2 4 6 8 10 12 14 16 18 20

EXAMPLEEnergy consumption Life Cycle Cost - 20 years operation

System 1

System 1

Years of operation 105,642 53,032 Energy cost

1,500 1,500 Maintenance cost

5,200 7,300 Initial cost

Endsuction NB/NK (E)

In Line dryrunner TP/LP/GTI/IFV (E)

In Line dryrunner TP/LM/LP (E)

Wet-runner UPS (E)

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The preferred pump design

At Grundfos, we work with our customers all the way

along the line, to help them get the best results and the

greatest savings from using Grundfos pump systems.

This is why we are firm believers in training, and why

Grundfos has set up The Poul Due Jensen Academy – a

unique international training facility equipped with the

most sophisticated technical facilities and staffed by a

team of professional instructors. The Academy, located in

Denmark, is where Grundfos staff are trained not only in all

the technical aspects of pump systems, but also in how to

listen carefully to customers and the details of their needs.

Spreading the news

We also constantly hold seminars at numerous

locations around the world. These seminars look at

how to minimise installation costs, how to improve

comfort levels and – perhaps most importantly – how

to improve operating efficiency when running Grundfos

installations.

Supporting you

To assist our customers and working partners in selec-

ting the right equipment to meet their needs, we have

developed a selection of special support tools:

The Grundfos System Guide for District

Heating for dimensioning

WinCaps for easy product selection

Support tools

“For us, district heating means pumptechnology transformed into reliability!”

“For us, district heating means listeningtransformed into ongoing support!”

District Heating System GuideThis hard-copy guide provides an overview of district heating sys-tems as well as giving technical information about the different solutions possible - and the Grundfos products required.

WinCAPSWinCAPS (Computer Aided Product Selection software) is the Grundfos electronic product catalogue and selection tool. It is an invaluable aid in pump selection and dimensioning, enabling users to calculate the size of pump required for each particular job. WinCAPS also includes the software to calculate life cycle costs and pay-back times.WinCAPS is only available on a CD-ROM.

Optimised design

The design of Grundfos In-Line pumps is specially opti-

mised for use in district heating systems. They are compact

and easy to install, and the extensive range of different

sizes, combined with electronic speed control, means that

the capacity always matches the exact need.

Experience shows that Grundfos In-Line pumps are the

most popular choice for most district heating installations,

because they provide substantial benefits compared to

horizontal split case pumps and end suction norm pumps.

Better pipe layout

In contrast to norm pumps, In-Line pumps allow a straight

pipe layout, often reducing installation cost.

Fewer shaft seals

In-Line pumps have only one shaft seal, whereas a split

casing pump has two shaft seals, increasing the risk of wear

and leakage.

No bearings

There are no bearings in the In-Line pump, which results in

fewer wearing parts

Short and rigid construction

This implies stable operation even at the varying speeds

associated with frequency converter operation.

Fewer wearing parts

The only parts subject to wear are the motor bearings and

one single shaft seal, wearing and set of O-ring gaskets.

Easy to service

There is free access to wear rings, impeller and shaft seal

as soon as the motor with the rotating element (upper

part, shaft, coupling and impeller) has been lifted out of

the pump housing. Replacing the impeller and shaft seal

does not require new line-up of the pump.

Small footprint

As the pump is vertical, it takes up relatively little floor

space, which means more room for other equipment in

the pump room.

Low weight

In-Line pumps have a comparatively low weight because

no foundations are required, as is the case with horizontal

split casing pumps.

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