Piping components

Estimating by weight requires virtually complete takeoff, including weight calculations and a bill record of past costs on this basis. Its only advantage hes in the time saved in the detailed estimates of the cost of piping components. 

These temperature limits are based on material tests and do not necessarily reflect evidence of successful use as piping-component linings at these temperatures. The designer should contact the manufacturer for specific applications, particularly as temperature limits are approached. 

Combined longitudinal stresses shall not exceed the limits established in the code (see pressure design of piping components for Sl limitations). 

The allowable stress range for displacement stresses and permissible additive stresses shall be as specified in Eqs. (10-93) and (10-94) for systems primarily stressed in bending and/or torsion. For pipe or piping components containing longitudinal welds the basic allowable stress S may be used to determine S. (See Table 10-49, Note 13.)... 

In the absence of more direc tly applicable data, the flexibility factor k and stress-intensification factor i shown in Table 10-54 may be used in flexibihty calculations in Eq. (10-101). For piping components or attachments (such as valves, strainers, anchor rings, and bands) not covered in the table, suitable stress-intensification factors may be assumed by comparison of their significant geometry with that of the components shown. 

Possible large pipe and pipe component failures due to corrosion. 3 b ... 

Female connection A circular sleeve used to join two duct or pipe components together. The male ends of the two components are inserted into the female connection. 

As piping drawings are developed, re-evaluate those lines where estimated pressure drop was a criterion in size selection, taking into account the actual piping configuration and effects of control and piping components. 

Figure 1-20C summarizes a system for representing piping components on the flow sheets. 

To ensure proper understanding of terminology, a brief discussion of the piping components of most process systems is appropriate. 

The resistance to flow through the various piping components that make up the. system (except vessels, tanks, pumps—items which do not necessarily provide frictional resistance to flow) such as valves, fittings, and connections into or out of equipment (not the loss through the equipment) are established by test and presented in the published literature, but do vary depending on the investigator. 

Material Specification Index for Piping and Pipe Components. 

Some of the terms relating to piping components, and the fabrication and erection of piping and pipeline systems are found in this paragraph. For additional terms relating to... 

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