General Notes
- Fittings in the tables in this section with ANSI/AWWA standards listed in the heading are as specified in those standards. Fittings in tables with heading “AMERICAN Standard” are either not included in the ANSI/AWWA standards or vary from them in weights and/or dimensions.
- Fittings are manufactured of ductile iron meeting the requirements of AWWA C110 or C153, as applicable.
- Weights of accessories are not included in weights of fittings shown in tables unless specifically noted. Where “Assembled Weight” is shown, joint materials are shipped assembled on the fitting. For weights of accessories see those sections of the website.
- Weights and dimensions of fittings can vary due to changes in foundry equipment.
- Orientation of bolt holes in mechanical joint fittings with respect to any centerline1 is not fixed. Where bolt holes are required to straddle the centerline of the fitting, this must be specified by the purchaser.
- For allowable joint deflection of mechanical joints, see Mechanical Joint Pipe Deflection and Offset.
- Mechanical joint flanges can normally be furnished tapped for studs when specified by the purchaser. See Tee-Head Bolts, Studs and Nuts.
- All pressure ratings shown are for water service.
- The ANSI/AWWA C110/A21.10 thicknesses of most mechanical joint fittings shown in tables in this section are the same thicknesses as Class “B” or “D” (most of them being Class “B”) per the obsolete AWWA C100 Standard; these thicknesses and corresponding outside diameters are shown in Historical Data.
- . Some fittings are available with body metal thickness other than as shown in the tables. Some fittings are available in different sizes and with different size combinations than shown. Consult AMERICAN regarding special requirements.
- See Special Fittings and Fabricated Items for AMERICAN specials.
- Locations of taps in mechanical joint fittings should be designated as shown under Standard Dimensions for Flanged Fittings.
- MJ connecting pieces (MJ-MJ, MJPE, MJ-Flg, and Flg-PE) are furnished by AMERICAN as fabricated piping and can be furnished in variable lengths. See Fabricated Items.
- Fittings may be furnished by AMERICAN that are manufactured by others. Any such fittings will be manufactured in accordance with appropriate ANSI/AWWA or AMERICAN standards.
- Some configurations shown for both AWWA C110 and C153 may not be available both ways.
- The thicknesses shown for C153 standard fittings are the nominal thicknesses shown in this standard. The shown lengths and center-to-socket dimensions of these fittings are minimum dimensions also in accordance with the C153 standard. Actual thicknesses of fittings will vary as allowed by the standard, and actual lengths and center-to-socket dimensions will generally be equal to or greater than those shown in the tables, all depending on foundry equipment.
- AMERICAN manufactures 4" through 12" mechanical joint ductile iron pipe in accordance with AWWA C151 and AWWA C111 and mechanical joint fittings up through 48" in accordance with AWWA C153, AWWA C110, and AWWA C111, as described therein. However, AMERICAN does not warrant the performance of third-party mechanical retainer glands or joints using third-party retainer glands, since the design, manufacturing, and installation methods are beyond our control. AMERICAN does manufacture a number of restrained joints such as Fast-Grip, Flex-Ring, Field Flex-Ring, Lok-Ring, and other devices, where we warrant the joint as well as the associated pipe and fittings of our manufacture.
1.) The normal but not universal practice is to have the bolt holes straddle the vertical centerline of a fitting, which is determined when the fitting is in the position to change the direction of fluid flowing in a horizontal plane. With standard base bends and standard base tees, the determination is made when the fitting is in position to change the direction of fluid flowing in a vertical plane.