catalogue - Düker GmbH & Co KGaA

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256 Assembly instructions for pressure pipes and fittings with flanges 6257
6 Assembly 258 instructions for pressure pipes and fittings with flanges 1. Cleaning of flange, raised face and gasket. Check all parts for proper conditions. Do not use damaged parts. 2. In case of installation with unprotected screws, especially in soils with corrosion risk, the screw connections must be protected ( f. e. with bitumous tapes ). 3. Pipes and fittings must be bedded carefully and the filling and compacting of the pipe ditch must be done carefully as well. Pipes and fittings should never be supported with stones or similar hard material and must be laid on stonefree base. Rocky base must be covered with min. 15 cm layer of sand, gravel or split. 4. For flanged pipes and -fittings the general rule for the arrangements of the boltholes is, that no bolthole is located in the flange axis, which is upright to the pipeline level. 5. Notes for the installation of flanges fittings ( in particular double flanged tapers / FFR ): To avoid installation failures, special installation marks ( notches ) are cast on at the flanges in opposite positions. It is necessary to pay attention that these marks are arranged for installation in vertical or horizontal direction. Example: Double flanged taper ( FFR ) 350 / 250, PN 10 right wrong In case of wrong installation and in consequence to the different numbers of boltholes at double flanged tapers, the connected valves or fittings are bevelled to the vertical axis. Possible deviations are up to 22,5°, depending on the dimensions. Attention: On big dimensions, a deviation is hardly to detect! Remarks: Please note, that DVGW-workingsheet GW 368 should be observed. 6259
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FITTINGS AND VALVES Fittings, Flang
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6 � Back to summary Düker GmbH &
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10 � Back to summary We keep on m
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14 Index Description Code Page Hexa
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18 Index Description Code Page Pill
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22 � Back to summary 1.1 Socket j
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1 Screw-gland 26 socket joints ( SM
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30 1.2 Restrained socket joints mad
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1 TYTON 34 ® -socket joints with T
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381 Screw-gland socket joints with
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142 Flanged joints PN 10 acc. to DI
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1 Flanged 46 joints PN 25 acc. to D
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1 Hexagonal 50 screws for flanges P
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54 1.4 Ductile cast iron ( GGG ) fl
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58 Pressure pipes with cast-on flan
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63 1 DN 80 100 125 150 200 250 300
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66 Information about ductile cast i
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1 70 Flanged sockets Dimensions and
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1 74 Flanged spigots - F Dimensions
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1 Single 78 socket bends 45° - MK
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1 Single 82 socket bends 22 1 /2°
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1 Double 86 socket tees with flange
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1 Double 90 socket tees with flange
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1 All 94 socket tees - MMB DN 1 300
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Double socket pieces with 45 ° soc
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1 Single 102 socket tees with flang
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1061 Double flanged duckfoot bends
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Double flanged bends 11 1101 1 /4
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➜ ➜ 1141 All flanged tees - T 1
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1 Double 118 flanged piece with 45
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1 All 122 flanged cross tees - TT a
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1 Double 126 flanged tapers, excent
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1 Blank 130 flanges - X DN 25 - 250
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1 Pipe 134 caps with TYTON ® , -sc
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Double socket duckfoot bends 90° w
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1142 Double flanged hatchbox acc. t
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1146 2 2 Ductile cast iron ( GGG )
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2 Flanged 150 sockets - E-KS DN 50
Page 77 and 78: 2 Double 154 socket tees with flang
Page 79 and 80: 1582 Double sockets with internal t
Page 81 and 82: 162 4 Accessories 4
Page 83 and 84: 4 Hook 166 wrench for laying pressu
Page 85 and 86: Gate valves type 4004 with flanges
Page 87 and 88: 5 Gate 174 valves type 4004 with No
Page 89 and 90: 5 Gate 178 valves type 4004 with No
Page 91 and 92: 5 Gate 182 valves type 4004 with PE
Page 93 and 94: 5 Gate 186 valves type 1004 with PE
Page 95 and 96: 5 Gate valves type 1004 with flange
Page 97 and 98: 5 Gate 194 valves type 3004 with we
Page 99 and 100: 5 Butterfly 198 valves type 451 wit
Page 101 and 102: Underground fire hydrants PN 16, ty
Page 103 and 104: 5 Pillar 206 fire hydrants type 494
Page 105 and 106: 5 Pillar 210 fire hydrants type 501
Page 107 and 108: 2145 All spigot end tee (IT) and si
Page 109 and 110: 5 Tapping valves “TOP“ with PE-
Page 111 and 112: 5 Flap 222 valves Design features:
Page 113 and 114: 226 6.1 Laying instructions for thr
Page 115 and 116: 6 Laying 230 instructions for ducti
Page 117 and 118: Laying instructions for ductile cas
Page 127: 254 6.2 Assembly instructions for p
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catalogue - Düker GmbH & Co KGaA

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