Flange - Threaded, ANSI Class 125, C115, DI (in)

Written by Matt Milbury. Posted in Ductile Iron Flange Datasheets

Flange - Threaded, ANSI Class 125, AWWA C115, Flat Face (in) Ductile Iron Datasheet

  • ANSI/AWWA C115/A21.15 - American National Standard for Flanged Cast-Iron and Ductile-Iron Pipe with Threaded Flanges.
  • Class 125 flanges are plain faced without projection and are furnished smooth or with shallow serrations.
  • The bolt circle and bolt holes of these flanges match those of ANSI/AWWA C115/A21.15 and Class 125 flanges shown in ANSI/ASME B16.1 and can be joined with A21.15 and Class 125 B16.1 flanges.
  • The flanges do not match the Class 250 flanges shown in ANSI/ASME B16.1 and cannot be joined with Class 250 ANSI/ASME B16.1 flanged fittings and valves.
  • Pipe face-to-face dimensions conform to a tolerance of ±.12" for sizes 3"-64"
    • 3" to 12" = ±.12
    • 14" to 24" = ±.19
    • 30" to 64" = ±.25

 Data thdf C115 125Data thdf C115 125 1

Pipe

Size

(NPS)

Outside

Diameter

of

Flange

A

Thickness

of

Flange


C

Diameter

of Hub

at Base


J

Length

of

Hub


L

Number

of

Bolt

Holes

Diameter

of

Bolt

Holes

Bolt

Circle

Diameter


P

Approx.

Weight

3 7 1/2 3/4 - - 4 3/4 6 -
4 9 15/16 - - 8 3/4 7 1/2 -
6 11 1 - - 8 7/8 9 1/2 -
8 13 1/2 1 1/8 - - 8 7/8 11 3/4 -
10 16 1 3/16 - - 12 1 14 1/4 -
12 19 1 1/4 - - 12 1 17 -
14 21 1 3/8 - - 12 1 1/8 18 3/4 -
16 23 1/2 1 7/16 - - 16 1 1/8 21 1/4 -
18 25 1 9/16 - - 16 1 1/4 22 3/4 -
20 27 1/2 1 11/16 - - 20 1 1/4 25 -
24 32 1 7/8 - - 20 1 3/8 29 1/2 -
30 38 3/4 2 1/8 - - 28 1 3/8 36 -
36 46 2 3/8 - - 32 1 5/8 42 3/4 -
42 53 2 5/8 - - 36 1 5/8 49 1/2 -
48 59 1/2 2 3/4 - - 44 1 5/8 56 -
54 66 1/4 3 - - 44 2 62 3/4 -
60 73 3 1/8 - - 52 2 69 1/4 -
64 80 3 3/8 - - 52 2 76 -