KSB BOAX-B Instructions De Service page 31

7.2.2 Flanging dimensions
Connection to the piping.
Piping flanges must match the following dimensions.
Ø2a
Ø6
Ø2a: max. allowable diameter on flange face
Ø2b: external diameter of the pipe when fitting loose plate flange with
lapped pipe end
Ø3: allowed minimum diameter on flange face
Ø4: minimum diameter at 10mm from the flange face
Ø5: minimum diameter at 20mm from the flange face
Ø6: allowed minimum diameter of raised face
DN NPS ø2a ø2b
40 1 ½ 54 49
50 2 63 61
65 2 ½ 80 77
80 3 93 89
100 4 116 115
125 5 141,5 140
150 6 170,5* 169
200 8 222* 220
250 10 276,5* 273
300 12 327,5* 324
350 14 361 356
400 16 412 407
450 18 463 457
500 20 515 508
600 24 617 610
650 26 668
700 28 718
750 30 770
800 32 820
900 36 924
1000 40 1027
* Please check that the body is well centered between the tie--rod
7.2.3 Interface between valve and pipe flanges
Correct fitting except T6 bodies
Metallic intermediate insertion flange
no direct contact
no gasket
with the
expansion joint
In case of coated pipe (hard rubber, concrete or Teflon for
example), coating hardness and flanges detailed dimensions
shall be given to KSB for acceptance.
In case of fitting between polyethylene flanges:
- - Authorized fitting between flanges with flat faces
- - Not authorized fitting between flanges with grooved faces
Ø3 10 mm
20 mm
Ø5 Ø4
Ø2b
ø3 ø4 ø5 ø6
32 77
33 86
55 13 107
71 50 121
90 74 40 141
119 107 87 171
144 134 120 196
196 189 178 250
249 243 234 306
297 291 283 358
326 321 314 399
370 366 358 452
422 416 409 505
470 464 457 558
566 560 554 664
620 614 608 723
671 666 660 773
717 711 705 830
769 764 758 880
869 864 859 987
970 965 960 1094
no rubber coated flange
T5 type body
7.3 Handling
Handling means may be necessary to install large sizes valves.
They must be used as shown.
VALVE WITH MOTORIZATION
CORRECT
CORRECT
BOAX- -B Mat- -P
HORIZONTAL VALVE
CORRECT
Neck extension and body supports may have been delivered
separately from the valve. They must be mounted onto the
valve before fitting it between flanges
FORBIDDEN
FORBIDDEN
FORBIDDEN
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