Buderus Manual on Trenchless Installation of Ductile Cast ... - Duktus

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Angular deflection DN 00 - DN 1000 BLS ® joints Once the joint has been made, pipes of the nominal dimensions can be deflected to the following angles: DN 00 – 2,0° DN 700 – 1, ° DN 800 – 1, ° DN 900 – 1, ° DN 1000 – 1, ° For a pipe metres in length, an angular deflection of 1° gives a movement off the axis of the pipe fitted previously of about ten centimetres, i.e. a deflection of 3° = 30 centimetres. Notice on installation and laying It should be borne in mind that, because the locking segments adjust as a function of the internal pressure, stretches of up to about eight millimetres per joint may occur. To allow for the amount by which the pipeline moves outwards when stretched by pressure, the pipes should be offset inwards at all bends by deflecting the joints inwards to their maximum permitted angular deflection. See the diagram below. Position after stretching Position when installed 45° 119
Installation instructions Shortening pipes Attention must be paid to the ability of pipes to be cut (see p. 111). Pipes which can be cut are identified by a lengthwise white stripe or the letters „SR“ printed on the end-face of the socket. If pipes have to be shortened on site, the welding bead needed for the BLS ® restrained joint has to be applied using an electrode laid down by the manufacturer. The welding work is to be carried out as directed in DVS Merkblatt 1 02. The size of the bead and its distance from the inserting end are to be as shown in the table below. Type of electrode, e.g. Castolin 7330-D 120 DN 00 700 800 900 1000 a 117 0 13 0 1 0 1 0 0 1 00 -2 -2 -2 -2 -2 b 8±1 8±1 8±1 8±1 8±1 c +0. 0 Combining fittings belonging to other systems with BLS ® joints +0. 0 When pipes end are going to be fitted to fittings belonging to other systems, our Applications Engineering Division should be consulted. +0. 0 Copper clamping ring To ensure that the welding bead is properly made and uniform, a copper clamping ring must be fastened in place on the inserting end to enable the welding bead to be applied at the correct distance from the end (see table). The zone in which the weld is made must be bright metal. Contaminants or zinc coatings must be removed by filing or grinding. Once the copper clamping ring has been removed, the cut edge at the inserting end must be restored to the original form and both it and the region occupied by the welding bead must be cleaned. Finally, these regions must be provided with the appropriate protective coating. +0. 0 b a +0. 0 c
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Buderus Ma
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Buderus Ma
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1. Introduction Introduction When t
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Buderus Ma
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At x 100 magnification, these graph
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10 3 kp cm Fig. 2.7 Steel Ductile G
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Fig. 2.11 How the pipes are produce
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2.3 Development in the joint-making
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joints is DVGW Arbeitsblatt GW 3 8
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Longitudinal force-fit joints and t
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Longitudinal force-fit joints and t
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2.3.2 Making the BLS ® joint Makin
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Fig. 2.21 Left lock Catch Right loc
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2.4 Inside and outside protection I
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Inside and outside protection the c
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Reference documents [2.8] Gaebelein
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General What is said above is true
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Other pluses that the two technique
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Fig. 3.5 Hydraulic unit The press-p
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3.2 The auxiliary pipe technique Th
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In the final stage of the operation
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3.4 Requirements for the site Requi
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Reference documents
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Both the variants of the burst lini
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During the pulling process, the tra
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4.3.2 Joints As in virtually all tr
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Reference documents 3
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Fig. 5.3 Assembly of the string of
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the outlet nozzles. In rocky soils,
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5.3 General requirements Companies
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A prerequisite for this procedure i
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Table .1 provides an overview of th
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Installations Nominal size DN lengt
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Reference documents [ . ] DVGW Arbe
Page 70 and 71: Fig. 6.2 Traction vehicle Fig. 6.3
Page 72 and 73: 6.4 Joints The longitudinal force-f
Page 74 and 75: Areas of application, advantages an
Page 76 and 77: Reference documents 7
Page 78 and 79: 7. 2 A description of the technique
Page 80 and 81: Buderus Giesserei
Page 82 and 83: Fig. 7.8 Pushing in a pipe A descri
Page 84 and 85: 7.5 Reference installations No. Loc
Page 86 and 87: [7. ] Rink, W.: Langrohrrelining mi
Page 88 and 89: In the second step, the pilot is up
Page 90 and 91: 8.3 Outside protection Outside prot
Page 92 and 93: 8.6 Reference documents [8.1] Richt
Page 94 and 95: A consideration of the economics of
Page 96 and 97: A consideration of the economics of
Page 98 and 99: [9.2] DVGW-Hinweis W 09: Auswirkung
Page 100 and 101: BLS ® restrained joint DN 80 to DN
Page 102 and 103: Technical data sheets 101
Page 104 and 105: General Pipes must not be: • drop
Page 106 and 107: Filling in the pipe pit DN 80 - DN
Page 108 and 109: DN 80 - DN 00 BLS ® joints There m
Page 110 and 111: Use of clamping ring joints DN 80 -
Page 112 and 113: Notice on assembly DN 80 - DN 00 BL
Page 114 and 115: Retrospective application of weldin
Page 116 and 117: 11.2 Installation instructions for
Page 118 and 119: Inserting the locking segments DN 0
Page 122 and 123: Disconnecting BLS ® joint disconne
Page 124 and 125: Shrink-on devices and protective ta
Page 126 and 127: ZMU Before a pipe is cut, the ZMU s
Page 128 and 129: ZMU 127
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Buderus Manual on Trenchless Installation of Ductile Cast ... - Duktus

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