4.0 Worksheets

4.1 Flange Identification Worksheet

To identify Flange End nominal connections, obtain the information indicated on this form and provide this information to WOODCO USA, or see Flange Slide Rule Program at: www.woodcousa.com.

USING AN ACCURATE SCALE          

MEASURE OUTSIDE DIAMETER (O.D.) or
 CIRCUMFERENCE (Cir.) AND MEASURE BOLT CIRCLE (B.C.)

MEASURE BOLT HOLE DIAMETER AND
COUNT NUMBER OF HOLES

 O.D.     

MEASURE OUTSIDE DIAMETER (FOR INACCESSIBLE FLANGE FACES, MEASURE CIRCUMFERENCE OF FLANGE WITH A TAPE MEASURE AND DIVIDE THIS MEASUREMENT BY 3.1416 [] TO GET THE O.D.).

MEASURE BOLT HOLE DIAMETER ON OPEN FACE FLANGES. (MEASURE BOLT DIAMETER ON STUDDED FACE FLANGES AND ADD 1/8" TO OBTAIN HOLE DIAMETER).  

COUNT NUMBER OF HOLES.

TO MEASURE B.C., MEASURE FROM INSIDE EDGE OF ONE HOLE TO OUTSIDE EDGE OF OPPOSITE HOLE.  

MEASURE RING GROOVE PITCH DIAMETER (P.D.)         

AND MEASURE FLANGE THICKNESS          

MEASURE FROM INSIDE EDGE OF RING GROOVE ON ONE SIDE , TO OUTSIDE EDGE OF RING GROOVE ON OPPOSITE SIDE FOR P.D.

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