Uponor infra retention systems eng 2020

Uponor Infra retention systems Solutions for effective management of storm water and sanitary sewage, potable water and firefighting water

Content Retention tanks of Weholite system ............................. 3 Dimensions and capacities of tanks ............................ 4

Single tanks ...........................................................................4

Large capacity tanks ..............................................................4

Dimension table .....................................................................5

Tank structure .................................................................. 6

Body of tank ...........................................................................7

Location of inlets ....................................................................7

Position of the chimney ..........................................................8

Chimney connections in the tank body .................................8

Connections of tanks .............................................................9

Installation of the flow regulator .............................................9

Tank installation guidelines ......................................... 10

Ground installation options ..................................................10

Installation of tanks ..............................................................10

Foundation of tanks ............................................................. 11

Firefighting tanks .......................................................... 12

Tank operation principle .......................................................12

Equipment of tanks ..............................................................12

Weholite piping retention ............................................. 13 Retention sewage canal ............................................... 14

Range of applications ......................................................... 15

2 | Uponor Infra retention systems

Retention tanks of Weholite system One of the most typical products manufactured by Uponor Infra is universal polyethylene retention tanks, which are characterised by high quality, offer a wide range of capacities – that may be adapted to the individual needs of the ordering party – and are available in inner diameters ranging from 1,000 to 3,000mm. The tanks may be of ring stiffness ranging from SN2 to SN8 (PN-EN ISO 9969), which helps adjust the parameters of the tank construction to the specific ground conditions, the specifics of the project and the existing terrain (green area or under thoroughfare system).

The tanks of Weholite system are used for keeping, storing and retention of: storm water, sanitary and municipal sewage, potable water, technological and fire water etc., liquids produced by agri-food industry, iquid animal faeces, aggressive industrial sewage, liquids used in biogas plants, other liquids (containing chemical compounds to which PE-HD is chemically resistant).

• • • • • • •

ADVANTAGES OF TANKS

• 100% leak-free (welded joints) • Long-term durability • Total resistance to corrosion • Higher reliability (double wall) • Wide range of chemical resistance • Full resistance to UV radiation • Light weight • Quick and easy to install, also in winter conditions • Installation possible even in difficult water and soil conditions

V

• ersatility of applications • Installation possible in roads and underneath car parks • Possibility to install fittings, technological devices and other equipment

Uponor Infra retention systems | 3

Dimensions and capacities of tanks Single tanks A typical tank is a single-body structure, but there is a possibility to join tanks into batteries of any capacity.

Prefabricated tanks delivered as one component may be of capacity ranging from 10 to 90m3 (larger capacities are manufactured on demand and transported on individual conditions). The maximum length of the delivered tanks is only restricted by transport limitations.

Large capacity tanks Large capacity tanks are transported in segments and then connected on the construction site by the extrusion welding method. Such solution makes it possible to obtain a capacity of as much as several thousand cubic metres with an optimised use of the available land. The length of the tank segments delivered directly to the construction site may be reduced when the existing conditions make it impossible to assemble longer modules (e.g. formwork excavations).

The extrusion welding makes it possible to obtain homogeneous, monolithic, entirely tight and reliable structures which do not contain defects typical for structures connected by means of mechanical connections, such as deformations of sockets, unfastening fittings, seals which are defective or difficult to install.

Possible tank systems: single lineal tank, parallel tank batteries, serial tank batteries, tanks in special systems.

• • • •

4 | Uponor Infra retention systems

Dimensions and capacities of tanks Dimension table DN/ID di

1000

1200

1400

1600

1800

V

2000

2200

2400

2500

2600

3000

Lcmax

3

[m ]

[m]

10

13,03

9,1

6,83

5,35

4,36

3,78

15

19,39

13,6

10,08

7,84

6,33

5,37

4,54

4,03

20

25,76

18,0

13,33

10,32

8,29

6,96

5,86

5,14

4,87

4,56

25

32,13

22,4

16,58

12,81

10,26

8,55

7,17

6,24

5,89

5,50

30

38,49

26,8

19,82

15,30

12,22

10,14

8,49

7,35

6,91

6,45

5,24

35

44,86

31,2

23,07

17,78

14,19

11,74

9,80

8,45

7,93

7,39

5,95

40

51,22

35,7

26,32

20,27

16,15

13,33

11,12

9,56

8,94

8,33

6,65

45

57,59

40,1

29,57

22,76

18,12

14,92

12,43

10,66

9,96

9,27

7,36

50

63,96

44,5

32,82

25,24

20,08

16,51

13,75

11,77

10,98

10,21

8,07

60

76,69

53,4

39,31

30,22

24,01

19,69

16,38

13,98

13,02

12,10

9,48

70

89,42

62,2

45,81

35,19

27,94

22,88

19,01

16,19

15,06

13,98

10,90

80

102,2

71,0

52,30

40,16

31,87

26,06

21,64

18,40

17,09

15,86

12,31

90

114,9

79,9

58,80

45,14

35,80

29,24

24,27

20,61

19,13

17,75

13,73

100

127,6

88,7

65,30

50,11

39,73

32,43

26,90

22,82

21,17

19,63

15,14

110

140,4

97,6

71,79

55,08

43,66

35,61

29,53

25,03

23,20

21,51

16,56

120

153,1

106,4

78,29

60,06

47,59

38,79

32,16

27,24

25,24

23,40

17,97

130

165,8

115,2

84,78

65,03

51,52

41,98

34,79

29,45

27,28

25,28

19,39

140

178,6

124,1

91,28

70,01

55,45

45,16

37,42

31,66

29,32

27,16

20,80

150

191,3

132,9

97,78

74,98

59,38

48,34

40,05

33,87

31,35

29,05

22,22

160

204,0

141,8

104,3

79,95

63,31

51,52

42,69

36,08

33,39

30,93

23,63

170

216,8

150,6

110,8

84,93

67,24

54,71

45,32

38,29

35,43

32,81

25,05

180

229,5

159,5

117,3

89,90

71,17

57,89

47,95

40,50

37,46

34,70

26,46

190

242,2

168,3

123,8

94,87

75,10

61,07

50,58

42,71

39,50

36,58

27,87

200

254,9

177,1

130,3

99,85

79,03

64,26

53,21

44,92

41,54

38,46

29,29

210

267,7

186,0

136,8

104,8

82,96

67,44

55,84

47,14

43,58

40,35

30,70

220

280,4

194,8

143,3

109,8

86,89

70,62

58,47

49,35

45,61

42,23

32,12

230

293,1

203,7

149,8

114,8

90,82

73,81

61,10

51,56

47,65

44,12

33,53

240

305,9

212,5

156,2

119,7

94,75

76,99

63,73

53,77

49,69

46,00

34,95

250

318,6

221,3

162,7

124,7

98,68

80,17

66,36

55,98

51,72

47,88

36,36

260

331,3

230,2

169,2

129,7

102,6

83,36

68,99

58,19

53,76

49,77

37,78

270

344,1

239,0

175,7

134,7

106,5

86,54

71,62

60,40

55,80

51,65

39,19

280

356,8

247,9

182,2

139,6

110,5

89,72

74,25

62,61

57,84

53,53

40,61

290

369,5

256,7

188,7

144,6

114,4

92,90

76,88

64,82

59,87

55,42

42,02

300

382,3

265,6

195,2

149,6

118,3

96,09

79,51

67,03

61,91

57,30

43,44

V - guaranteed minimum tank volume at full filling in m3 Lcmax - total length of the tank in [m] for SN≤8 kN/m2 DN/ID - nominal size of the Weholite pipe from which the tank body is made • Total length of the tank - Lcmax - (measured at 23°C ± 2°C) is an estimated value, the actual dimension may differ from the given due to technological reasons. Such a difference is not a basis for claims.

• Tanks with a length Lc > 13,5 m are supplied in parts or require special transport

WARNING! The manufacturer reserves the rights to change the dimensions in the table

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Tank structure What distinguishes Uponor Infra retention tanks from other tanks on the market is their wall (structurally based on a duallayer Weholite pipe), the unique construction of tank ends and the fact that they may be tailor-made for a given project.

The tank ends are manufactured with the use of a unique technology of a double-wall, spherical design, which is highly resistant to external load. The tank ends are connected with the body by means of a triple weld with a special reinforcement of the tank’s brim.

The spigots of the tank can be placed both in the body or in the ends or the chimney.

They may be compatible with: gravity PVC, WehoDuo, WehoTripla and Weholite pipelines, forced circulation pipelines with flange joints, through electro-fusion or butt-fusion welding, using connections made at the construction site and via gasketed in-situ connectors.

• • •

Double wall guarantees stiffness, tightness and resistance to freezing

The tank has got at least one inspection chimney with a polyethylene hatch (cover) or any other type of lid. The tanks installed in dense traffic areas are equipped with a cast iron hatch supported by a reinforced concrete slab.

Optional tank equipment: rungs or ladders in inspection chimneys, a PEHD suction pipe that enables emptying of the tank without the necessity of direct access to the inspection cover, a vent pipe installed on the PEHD cover or directly in the tank body, additional inlets and outlets, handles, installation bases and sockets for such tailor made fixtures as liquid level probes, vent grates, pumps etc., according to project specifications, any other tailor-made parts compliant with the project specifications.

• • • • • •

The manhole / inspection chimneys are made of the structural Weholite pipes or the solid-wall WehoPipe pipes whose construction is adjusted to the foundation depth and the soil and water conditions in the area. The delivered chimneys may be already welded to the tank body or ready to be embedded in the socket (DN500-800) at the construction site.

Chimney diameters: DN400 - DN800 – chamber inspection chimneys for inspection carried out from ground level.

DN1,000 or larger – manhole inspection chimneys.

Inspection chimneys may be equipped with inspection ladders (following consultation with the ordering party, it is possible to install an inspection ladder in a DN800 chimney).

• •

6 | Uponor Infra retention systems

Tank structure

di

Body of tank

Lcmax

Location of inlets

 inlet in the tank end

 inlet in the tank end at an angle

 inlet in the chimney

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Tank structure Position of the chimney

 centered on the axis of the tank

 eccentric tangentially to the side of the tank

 eccentric landings with a shelf jutting out behind the tank

Chimney connections in the tank body

 Welding (Weholite lub WehoPipe) for all diameters

 Embedded in socket with gasket (Weholite ≤dn800 only)

Installation of the ladder in the factory or at the construction site by the Service Group - on request

8 | Uponor Infra retention systems

Tank structure Connections of tanks

 Top overflow in parallel arrangement

Connection *)

 Lower overflow in parallel arrangement

Connection *)

*) Welding, flange, electrofusion joints or double socket depending on the project

Installation of the flow regulator

 at the outlet of the tank

Uponor Infra retention systems | 9

Tank installation guidelines Ground installation options Tanks can be installed both in dry ground or watered ground.

Installation into the ground as well as on the surface is possible since the system is resistant to the UV radiation.

• horizontal undergound tanks

Non-pressure retention tanks can be used as underground, overground or partly embedded tanks.

• horizontal partially embedded tanks DESCRIPTION: 1. Floor (bedding) 2. Basic gravel pack 3. Upper gravel pack 4. Backfill 5. Native Soil 6. S upports (individual solutions)

5

strefa backfill zasypki area

4

NIE not ZAGĘSZCZAĆ do compact

3

gravel strefa pack obsypki area

2 1

2 6

1

1

5

5

• horizontal overgound tanks

2

6

1

1

5

5

Installation of tanks A tank is made on an individual order basis following a demand for a specific capacity, with ring stiffness adjusted to match the ground and water conditions as specified by the customer and the installation site conditions (particularly the choice of the foundation place on a green area or under a passageway).

In case when tanks are connected into batteries or their lengths exceed the permissible transport lengths, the tanks are connected on the construction site by means of extrusion welding.

In case when a battery of parallel tanks is to be founded, it is recommended to maintain the distance between the outer outlines of the tanks to optimise the ground compaction rate according to the following guidelines. It is recommended to maintain a min. distance of 60 cm between the outer outline of the tank walls. To unload the tank and place it in an excavation, use only flexible slings. It is not permissible to allow direct contact of steel cables and hooks or to install while directly applying the mechanical equipment elements of the tank.

1 0 | Uponor Infra retention systems

Tank installation guidelines Foundation of tanks The tank can be founded within any loosely or averagely compacted ground directly on the natural substrate. In case of averagely compacted ground, the substrate should be additionally compacted, the sidefill ground should be laid in 15-20 cm layers and additionally compacted to meet the Is index. If the substrate has been found to contain cohesive highly plastic soils, semi-stiff soils and stiff soils and cohesive plastic soils, it is recommended to lay a layer of loose, well compactable soil with an approximate thickness of 0,25 m on the bottom of the excavation. In case the substrate has been found to contain deposits of organic or non-load-bearing soil, the soil should be removed and replaced with a bedding layer down to the load-bearing soil layer. In case when the non-load-bearing soil layer goes deep, the tank should be founded on a geofabric and gravel mattress or by means of other methods tailored to the individual geotechnical conditions, based on a separately developed geotechnical design for the tank foundation.

The first layer of the soil up to a height of 30 cm immediately above the tank crown should not be compacted with heavy compacting equipment; manual compaction is acceptable.

It is not necessary to fill the tank with water while carrying out earthworks for the foundation of the tank.

The wall of the tank is designed so as to be resistant to the loads which occur during earthworks provided that they are performed in a correct way. For tanks founded with small coverage and high level of ground waters, use the Uponor Infra computational program to check the stability against buoyancy. In case the tank is founded in the watered ground, the tank should be anchored in the foundation by means of tie rods. It is acceptable to embed the tank in a partial excavation or a partial embankment.

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Firefighting tanks Polyethylene tanks for firefighting water are designed for fire extinguishing equipment and systems as intermediate tanks, spare water tanks or water tanks used as supplementary sources of water for the external extinguishing of fire.

Uponor Infra offers tanks with inner diameters ranging from 2,000 mm to 3,000 mm and capacities of any size tailored to the individual needs of the customer. Non-pressure tanks of fire-fighting water are commonly used as underground tanks.

Tank operation principle The tank is supplied with water through float valve/valves from a water supply system or network. Water is supplied from the tank through a suction pipeline/pipelines or deep pumps installed in manholes or chambers. In case of tanks supplying firefighting water pump facilities, the water from the main firefighting pump tests is returned to the tank through a pipeline specially designed for that purpose. The tank is emptied typically by means of a submersible pump or suction caps (used for water draw tanks provided for fire brigades) or main fire protection pumps and the DN50 bypass on the fire brigade connection (in case of firefighting equipment and systems). The automatic systems of the tank controls the water level in the tank.

Equipment of tanks Fixed firefighting equipment and systems are provided with: Inspection chimney with a float valve and an outflow pipeline from the overflow with their corresponding piping Suction chamber with a suction line and its related fittings Deep pump chamber with its related piping Deep pump well with its related piping and ladder Inspection chimney with test piping, ladder and water level probes Aeration and air vent pipes Other elements according to the customer's design/ specification.

• • • • • • •

The tanks installed as a supplementary water source are provided with: Inspection chimney with a float valve and its related piping and an outflow pipeline from the overflow and a ladder Suction chamber with suction lines and related fittings

• •

1 2 | Uponor Infra retention systems

Weholite piping retention The essence of the piping retention system is the use of large diameter Weholite pipes (up to DN3,000 mm) mainly to retain storm water. The supplementary elements are fittings (segmented bends, tees, connections), chimneys and all nonstandard elements, e.g. flow regulators. The fittings which are most frequently used in piping retention systems are bends with various bending angles tailored to the system route.

It is a unique solution which allows you to form a retention system with very large diameters of the sewer and small inspection elements while maintaining full operability and optimising the use of land. This means an immense economy of time and installation costs as compared e.g. to a system based on concrete manholes or chambers.

Intermediate and final chimneys having a centric or eccentric design are provided for inspection or maintenance purposes or for the installation of control and measurement devices when necessary. They are supplied in a monolithic form which enables fast and efficient installation while preventing any leakages. To maintain a permanent flow rate and the selfcleaning ability of the retention system, it is possible to equip it with internal collective channels.

Uponor Infra retention systems | 1 3

Retention sewage canal The efficient way to solve the hydraulic overload problem is an innovative retention sewage canal developed by the scientists of the Rzeszów University of Technology in cooperation with the engineers of Uponor Infra. The retention sewage canal simultaneously performs two functions in the sewage system: a hydraulic one, related to the transport of a specific amount of sewage, and a retentive one which makes it possible to collect a periodical excess of incoming waste storm water from the catchment area. Observations of storm water flow prove that even during extremely intense precipitation sewers are not entirely filled and there is a certain reserve of the hydraulic capacity. The solution uses this capacity to retain waste storm water. It is retained in sewage canals with adequately calculated and expanded inner cubic capacity provided for the periodical storage of the sewage.

This solution is unique in that the internal space of the canal is divided into chambers by means of baffles installed above the sewer bottom to form flow-through openings. In every case, the spacing of the baffles and the size of the flow-through openings in the baffles are tailored to the individual circumstances.

The retention sewage canal was distinguished and awarded many times, among others, it was awarded a golden medal during the International Warsaw Exhibition of Inventions IWIS 2014. The solution is protected by a patent.

The retention sewage canal is built using structural pipe of the Weholite system made of homogenous high-density polyethylene (PE-HD) with the diameter to DN 3,000 mm and the ring stiffness to SN 16 kN/m2. Jointing of the pipes and installation of the baffles are performed by the extrusion welding method which ensures inseparability of joints and 100% leak tightness during the entire life cycle.

1 4 | Uponor Infra retention systems

ADVANTAGES OF RETENTION SEWAGE CANAL • • • • • • •

se of free capacity of canals to store waste water U Reduction of retention facilities' construction costs Maintenance-free and automatic operation Use of available types of pipes as chambers of the retention sewage canal.

Possibility to expand the system by additional elements under subsequent projects PE-HD technology makes it light (easy to install, transport and unload), durable, flexible, resistant to impacts, resistant to abrasion, corrosion and chemical agents.

Sewage canal elements are connected by the extrusion welding method which ensures inseparability of joints and 100% leak tightness during the entire life cycle.

In collaboration with the Rzeszów University of Technology, Uponor Infra is capable of providing comprehensive and informed subject-oriented assistance in the process of retention sewer designing. We make the best of our highly qualified scientific and engineering staff as well as state-of-the-art design tools ensuring fully professional choice of design parameters adapted to all investment performance conditions.

Retention sewage canal

Range of applications The use of retention sewage canal solves a number of problems related to the discharge of storm water from urbanized areas, especially in a situation when there is no possibility of local storm water management and infiltration. The use of retention sewage canal is particularly justified in cases of: catchment

• joining existing sewerage network of the new catchment and the introduction of new amount of sewage

• preventing hydraulic overload of existing networks and sewage facilities

• regulating the outflow of waste water into surface water.

limited capacity

Adjusting outflows from the catchment to the existing sewer systems

retention sewage canal

catchment 1

limited capacity

catchment 2

retention sewage canal

catchment

retention sewage canal

catchment

reservoir

retention sewage canal

reservoir

Adjusting outflows from new catchments to the existing sewer systems

limited capacity of watercourse

storm overflow

protection of sewage treatment plant

watercourse protection

Adjusting outflows from the catchment to watercourse

Adjusting the number of sewage discharges to watercourses

retention sewage canal

There is no room for installation of tanks

Uponor Infra retention systems | 1 5

Sales Department ul. Przemysล owa 5 97-410 Kleszczรณw POLAND T +48 44 731 34 00 F +48 44 731 34 10

www.uponor.pl/infra

04/2020/1962

In order to confirm the information contained in this publication regarding products, their features and prices, please contact the Sales Office of Uponor Infra. This publication does not constitute an offer within the meaning of the law.

Uponor Infra Sp. z o.o. ul. Kolejowa 5/7 01-217 Warszawa POLAND T +48 22 864 52 25 F +48 22 835 00 59