hiline aqua 1400x500

Hiline Aqua - Rigid Pre-insulated Polymer Pipe System

A pre-insulated pipe system for district heating, cooling and potable water applications

 

Hiline Aqua Logo 50pxH

Hiline Aqua is a rigid, pre-insulated polymer pipe system specifically developed for the next generation of district heating, cooling and hot water service networks. Whether it’s for a simple connection between two buildings or a large-scale network, it offers outstanding thermal performance coupled with exceptional levels of reliability.

Hiline aqua dimensioned 800

 

Available Dimensions

6m and 12m lengths

TYPE

Service Pipe

Series 1
Insulation

AQUA HEATING
Service Pipe

AQUA PLUS
Heating and Hot Water Services (WRAS approved)
Service Pipe

  OD Casing ID Wall Volume ID Wall Volume
  d D   s Service pipe   s Service pipe
  mm mm mm mm l/m mm mm l/m

20/90

20

90

14.4

2.8

0.163

-

-

-

25/90

25

90

18.0

3.5

0.254

-

-

-

32/90

32

90

26.2

2.9

0.539

24.8

3.6

0.483

40/110

40

110

32.6

3.7

0.834

31.0

4.5

0.745

50/110

50

110

40.8

4.6

1.307

38.8

5.6

1.182

63/125

63

125

51.4

5.8

2.074

48.8

7.1

1.869

75/140

75

140

61.4

6.8

2.959

58.2

8.4

2.659

90/160

90

160

73.6

8.2

4.252

69.8

10.1

3.825

110/200

110

200

90.0

10.0

6.359

85.4

12.3

5.725

125/200

125

200

102.2

11.4

8.199

97.0

14.0

7.386

160/250

160

250

130.8

14.6

13.430

124.2

17.9

12.109

200/315

200

315

163.6

18.2

21.010

155.2

22.4

18.908

250/355

250

355

204.6

22.7

32.861

194.2

27.9

29.605

315/400

315

400

257.8

28.6

52.172

244.6

35.2

46.966

Polypropylene (PP) Service Pipe

A polymer composite pipe manufactured from three-layer polypropylene random copolymer (PP-R), mechanically strengthened by fibre to dimensions and tolerances as specified in DIN 8077 Type 2 (PP-B) and quality standards and testing regime to DIN 8078 Type 2 (PP-B).

Intended for heating and cooling networks operating between -20°C and 95°C and with a WRAS-approved service pipe option for hot potable water services.

Tough Outer Casing

Manufactured in HDPE to the requirements of the EN253 standards, the tough and resilient outer casing enables the pipe to be buried directly in the ground – so ensuring the network’s insulation integrity is maintained throughout its service life.

High-Performance Insulation

A layer of CFC-free rigid polyurethane foam provides outstanding insulation properties, with values of 0.022 W/mK and with the insulation thickness according to the Series 1 requirements of EN 253. With the service pipe and outer casing being bonded together by the foam insulation, the system far out-performs other systems with an air gap. With this increased efficiency, comes lower heat loss and therefore a saving in both operational costs and carbon emissions.

For even greater efficiency, Hiline Aqua pipe systems are also available with increased insulation thickness to series 2 and series 3.

Complete System

Hiline Aqua has a comprehensive range of pre-fabricated bends, tees, fittings and accessories that enable it to be adapted to meet all possible configurations – including transitions to other types of pre-insulated pipe systems – such as Hiline Steel or Hiline Flex. Hiline Aqua can be offered as off-site pre-fabricated fittings and spool assemblies to meet a client’s bespoke requirements – significantly reducing installation time and cost.

Robust and Adaptable Joints

The Hiline Aqua PP-R service pipe is perfect for thermoplastic welding techniques, including electro fusion, butt fusion and socket fusion.

The HDPE outer casing can be joined using the proven Hiline range of wrap-around heat-shrink or electro-fusion couplings to ensure the very tightest of joints to protect against the ingress of ground water.

Trace Heating and Leak Detection Options

All of the Hiline Aqua range is available with the option of integrated trace heating cables to protect the media temperate and leak detection systems that warn of moisture ingress into the insulation.

Standards

Hiline Aqua pre-insulated pipes and fittings for thermal utilities are manufactured within an ISO 9001 accredited environment, generally in accordance with the requirements of EN 253 and in compliance with EN 448, EN 488, EN 489 and EN 13941

Service Life

 

Temperature

Service Life

Permissible working pressure

AQUA

AQUA PLUS

bar

psi

bar

psi

10°C

1

27.8

(403)

28.8

(418)

5

26.2

(380)

27.9

(405)

10

25.6

(372)

27.5

(399)

25

24.7

(358)

27.1

(393)

50

24.1

(350)

26.7

(387)

15°C

1

25.7

(373)

26.9

(390)

5

24.2

(351)

26.0

(377)

10

23.6

(343)

25.7

(373)

25

22.8

(331)

25.2

(366)

50

22.2

(322)

24.9

(361)

20°C

1

23.8

(345)

25.0

(363)

5

22.3

(324)

24.2

(351)

10

21.7

(315)

23.9

(347)

25

21.0

(305)

23.5

(341)

50

20.4

(296)

23.1

(335)

30°C

1

20.2

(293)

21.7

(315)

5

18.9

(274)

20.9

(303)

10

18.4

(267)

20.6

(299)

25

17.8

(258)

20.2

(293)

50

17.3

(251)

19.9

(289)

40°C

1

17.1

(248)

18.6

(270)

5

16.0

(232)

18.0

(261)

10

15.6

(226)

17.7

(257)

25

15.0

(218)

17.3

(251)

50

14.6

(212)

17.1

(248)

50°C

1

14.5

(210)

15.9

(231)

5

13.5

(196)

15.3

(222)

10

13.1

(190)

15.1

(219)

25

12.6

(183)

14.7

(213)

50

12.2

(177)

14.5

(210)

60°C

1

12.2

(177)

13.5

(196)

5

11.4

(165)

13.0

(189)

10

11.0

(160)

12.7

(184)

25

10.6

(154)

12.4

(180)

50

10.3

(149)

12.2

(177)

70°C

1

10.3

(149)

11.3

(164)

5

9.6

(139)

10.9

(158)

10

9.2

(134)

10.7

(155)

25

8.0

(116)

10.4

(151)

50

6.8

(99)

10.2

(148)

75°C

1

9.4

(136)

10.4

(151)

5

8.7

(126)

9.9

(144)

10

8.0

(116)

9.7

(141)

25

6.4

(93)

9.5

(138)

50

5.4

(78)

9.3

(135)

80°C

1

8.6

(125)

9.5

(138)

5

7.7

(112)

9.0

(131)

10

6.5

(94)

8.9

(129)

25

5.2

(75)

8.6

(125)

90°C

1

7.2

(104)

7.8

(113)

5

5.1

(74)

7.4

(107)

10

4.3

(62)

7.3

(106)

Hiline Literature Downloads

World-Class Support

At CPV we pride ourselves by the way in which we support our customers – from the moment that they first contact us through to their long-term operation and maintenance of a pre-insulated pipe network. As manufacturer, it’s important to us to ensure that our systems deliver exceptional performance throughout their working life. Therefore, we have established an array of world-class support services that help our clients every step of the way.

Design and Stress Analysis

designing district heating systems 400x167There are many factors that will affect the long-term integrity of a pre-insulated pipe system. Correctly identifying and dealing with the potential for thermal expansion of the pipe system is a critical element of the design process and we employ state-of-the-art sisKMR specialist stress analysis software. This package allows us to configure the pipe routes to keep the thermal expansion within safe limits and conform to the requirements of the EN 13941 standard for Design and installation of pre-insulated bonded pipe systems for district heating. Please click this link to find out more about our advanced stress analysis service for district heating pipe networks.

Training

Training installers, supervisors and maintenance operatives, our brand new training centre allows for not only the theory, but hands-on practical experience in the correct method for installing the Hiline pipe systems. In addition to this, we also offer training courses in the design, installation, commissioning and maintenance of electronic surveillance systems – including the use of our own buried pipe network, on which we can simulate moisture faults as part of the practical training.

Tool sales and hire

We offer both the sale and short-term hire of all the specialist tools required to install the Hiline pipe system.

Trace and Maintained Heating Systems Support

In temperature-critical, special applications that require round-the-clock maintenance of a specific media temperature, we can supply the Hiline pipe system with Trace or Maintained Heating systems.

On-site support services

Whether it’s on-site training, site supervision or specialist advice, support and maintenance – our engineers are at hand to provide customer support as and when required.

Hiline Project References

  • Academy Central Residential Developments
  • Arup Campus, Solihull, Birmingham
  • Ashley Park Housing Association
  • Astley Ainslie Hospital
  • British Antartic Survey
  • Calendar Park, Scotland
  • Camelford Primary School
  • CEU University, Leeds
  • Edgbaston Priory Club
  • Falkland Islands
  • Government Facilities
  • Lancaster University, New Sports Centre
  • Leicester Citywide DH Network
  • Northwood Barracks, London
  • Rolls Royce, Derby
  • Shenley Wood Retirement Village
  • Swansea University
  • The British Embassy, Harare, Zimbabwe
  • Warwick University
  • York University Accommodation Block

The True Cost of Insulation

The effects of using a more efficient insulation don’t appear to be much at face value, but factor in a minimum 30-year life-cycle cost of operating the system and the savings – both financial and environmental – mount up significantly. The Hiline range of pre-insulated pipe systems are available with increased levels of insulation thickness – which for a relatively small additional investment at the time of installation – will yield significant savings during the lifetime of the system.

To illustrate this point, take an example scenario in which a 5,000-metre long network (flow and return) consisting of DN150mm steel pre-insulated pipes circulating hot water at a flow temperature of 100°C. If fuelled by a natural-gas-fired boiler, constantly operating all-year-round, the system with standard insulation – over its nominal 30-year life – will lose heat to the equivalent of around £3.65 million’s-worth of gas(*) and emit 15,250 tonnes of CO2.

By making a small additional investment – equivalent to around 10 percent of the material cost at the time of installation – in order to upgrade the Hiline pipe system’s insulation thickness to Series Two, the cost of the heat lost would be reduced by some £1.2million – also saving 5,091 tonnes of CO2 from being emitted. The graph shown demonstrate the effects that this can have.

Figure 1

(*)Basis of Calculations used for example costs:

- Gas supply tariff 3p/ kWh
- Gas costs increase by 2.5% per annum for the 30-year calculation
- Gas boiler efficiency 80%
- Carbon factor for natural gas = 0.1836 kgCO2/kWh (source: Ofgem)