Elbows-Tees-Reducers
Flanged Fittings Cast MSS Standard

Size 1/2 3/4 1 1 1/4 1 1/2        
A 3 31/4 31/2 33/4 4        
B - - - - -        
C 1 5/8 1 3/4 1 3/4 2 21/4        
Dia. of
Flange		 31/2 37/8 41/4 45/8 5        
Flange
Thickness		 5/16 11/32 3/8 13/32 7/16        
Dia. of
Bolt
Circle		 23/8 23/4 31/8 31/2 37/8        
Dia. of
Bolt
Holes		 5/8 5/8 5/8 5/8 5/8        
No, of
Bolt
Holes		 4 4 4 4 4        

 

Size 2 2 1/2 3 4 6 8      
A 41/2 5 51/2 61/2 8 9      
B 5 51/2 6 7 9 11      
C 2 1/2 3 3 4 5 5 1/2      
Dia. of
Flange		 6 7 71/2 9 11 131/2      
Flange
Thickness		 1/2 9/`16 5/8 11/16 13/16 15/16      
Dia. of
Bolt
Circle		 43/4 51/2 6 71/2 91/2 113/4      
Dia. of
Bolt
Holes		 3/4 3/4 3/4 3/4 7/8 7/8      
No, of
Bolt
Holes		 4 4 4 8 8 8      

Notes:

  1. General dimensions conform to MSS-SP-51

  2. Bolt Hole and Circle Diameters correspond to ASME B16.5 Dimensions

  3. Faces of Flanges are flat and fininshed with serrated surface

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