Tolerance of flanges, dimension tolerance, welding neck, counter bore, diameter of hub, bolt hole spacing, bolt circle, Mumbai

TOLERANCE OF FLANGES

Tolerance of flanges, dimension tolerance, welding neck, counter bore, diameter of hub, bolt hole spacing, Mumbai
DIMENSIONS TOLERANCES OF FLANGES (in mm)
  Welding neck      
* outside diameter O.D. 600 if smaller  
+ 1.6
_
    O.D. over 600  
+ 3.1
_
         
         
    250 and smaller  
+ 0.7
_
  inside diameter 12 though 450  
+ 1.6
_
  (bore) 500 and larger
+ 3.1
- 1.6
         
         
    1.6 raised face
+ 0.4
_
 
  diameter of 6.3 raised face tounge &    
  contact face groove male and female
+ 0.4
_
 
         
         
* diameter of hub 125 and smaller
+ 2.2
- 0.7
  at point of weding 150 and larger
+ 4.0
- 0.7
         
         
  Thickness 450 and smaller
+ 3.1
- 0.0
    500 and larger
+ 4.7
- 0.0
         
  length through 250 and smaller
+ 1.6
_
  hub 300 and larger
+ 3.1
_
       
       
  bolt circle 600 and smaller
+ 0.7
_
    600 and larger
+ 1.6
_
       
  drilling bolt hole spacing
+ 0.7
_
     
     
  eccenticity with respect  
  to bore   0.70 max
     
  Threaded, Slip on lap joint,
Socket welding and blind
   
         
* outside diameter O.D. 600 or smaller  
+ 1.6
_
    O.D. over 600  
+ 3.1
_
       
  inside diameter threaded : to stand gauge limit
  (bore) slop on .lap joint : socket-welding
    250 and smaller
+ 0.7
- 0.0
    300 and larger
+ 1.6
- 0.0
         
    threaded  
  diameter of 250 and smaller
+ 0.7
- 0.0
  counter bore 300 and larger
+ 1.6
- 0.0
         
* outside diameter 300 and smaller
+ 2.3
- 1.6
  of hub 350 and larger
+ 3.1
_
         
  diameter of 1.6 raised face
+ 0.7
_
  contact face 6.3 raised fact tongue & grooved
    male & female  
+ 0.4
_
         
  Thickness 450 and smaller
+ 3.1
- 0.0
  hub 500 and larger
+ 4.7
- 0.0
       
* length through 450 and smaller
+ 3.0
- 1.6
  hub 500 and larger
+ 4.8
- 1.6
       
    bolt circle
+ 1.6
_
       
       
  drilling bolt hole spacing
+ 0.7
_
       
  eccenticity with respect    
  to bore   0.70 max
     
H Not covered by ANSI - B 16.5