All burrs shall be removed from the ends of pipes and any jointing materials used shall be prevented from entering the waterways. When making joints by welding, brazing, or soldering, precautions shall be taken to avoid the risk of fire. Care shall be taken to establish satisfactory jointing techniques for all water service pipework. 8.19.2 Jointing of pipesĪll proprietary joints shall be made in accordance with the manufacturer’s instructions.
They should be stored so as to prevent contamination of the inside by dirt, mud, foul water, etc. Pipes, fittings, and components shall be handled carefully to reduce damage. Dimensioning charts provide sizes for various fitting sizes and pound ratings.Īlireza Bahadori PhD, in Essentials of Oil and Gas Utilities, 2016 8.19 Installation of water pipes in buildings 8.19.1 Handling of Materials Single-line and double-line drawing symbols for the fittings mentioned above are shown. Length calculations using thread engagements and socket depths are defined. The method of assembling and dimensioning fitting configurations is detailed. Similar threaded and socket-weld fittings are presented. Concentric and eccentric reducing fittings and weld caps are explained. Other types of fittings used to make branch connections, such as unions, couplings, weld-o-lets, sock-o-lets, thread-o-lets, latr-o-lets, and elbow-lets, are presented. In this chapter, 45° elbows, straight and reducing tees, and stub-ins are explained. Among the butt-weld fittings discussed are 90° elbows, including long radius, short radius, mitered, and reducing ells. This chapter provides an extensive discussion on the wide variety of pipe fittings used in pipe fabrication. Rhea, in Pipe Drafting and Design (Fourth Edition), 2022 Abstract The 90° short-radius ell makes a much sharper turn than does the long-radius ell. Another elbow that may be used under certain circumstances and with permission from the customer is the 90° short-radius elbow. Manufacturers issue dimensioning charts containing lengths for a particular fitting. Dimensional sizes of fittings are typically provided by the manufacturer of the fitting. An elbow's length is commonly referred to as the center-to-end dimension and is measured from the centerpoint of its radius to the end of either opening. When one finds it necessary to draw a 90° elbow or calculate how much space it will occupy in a routing configuration, knowing its length becomes essential. Elbows can turn up, down, left, right, or any angle in between.
Simply put, the elbow, or ell, is used when a pipe changes direction. Of all the fittings, the elbow is the one most often used. This chapter presents various types of pipe fittings. Rhea, in Pipe Drafting and Design (Third Edition), 2012 Publisher Summary