Facility Piping Systems Handbook, Second Edition

The following pipe materials, jointing methods, and system components have been successfully used for various projects. Where trade names are mentioned, they are used only as an example to indicate general type, style, or construction. In no manner does this represent any endorsement or recommendation for use. There are materials suitable for applications other than those mentioned.
All materials used in a piping network must be carefully studied for pressure, compatibility, code acceptance, and suitability for use in any proposed project. The examples presented must not be used without all considerations outlined above, with the final choice of materials being the complete responsibility of the design professional.
| Services:High-Pressure Steam (Saturated)Atomizing SteamBoiler FeedwaterHigh-Pressure CondensateBlowoff and Continuous BlowdownChemical Feed Direct to Boiler Pressure/Temperature Limits:250 psig at 400 F General Materials:Carbon Steel, Cast Iron | |||
|---|---|---|---|
| Item | Pipe size | Description | Reference standards |
| Pipe | 2 in and smaller | Sch. 40, electric-resistance welded (ERW), or seamless steel (except for all condensate piping which shall be Sch. 80, ERW, or seamless steel) | ASTM A 53, Grade B |
| 2 1/2 12 in | Sch. 40, ERW, or seamless steel (except for all condensate piping which shall be Sch. 80, ERW, or seamless steel) | ASTM A 53, Grade B | |
| 14 18 in | Sch. 30, ERW, or seamless steel | ASTM A 53, Grade B | |
| Joints | 2 in and smaller | Socket-welded connections with 3000-lb forged steel socket weld fittings | ASTM A 105 |
| 2 1/2 in and larger | Butt welded connections | ||
| Fittings | 2 in and smaller | 3000-lb forged steel socket weld |