Butt Weld vs Socket Weld
During the construction of various structures, there are different methods of interfacing pipe flanges, fittings, and other connecting parts. Out of these methods, using a butt weld or socket weld…
Piping
David Etukudo Restrained Joint Pipe
A restrained joint pipe serves to prevent separation of joints on a pressurized pipeline due to thrust forces. Generally, in a straight pipe section, hydrostatic forces balance themselves out. Whenever…
Hazen-Williams vs Darcy-Weisbach
Both Hazen-Williams and Darcy-Weisbach equations compute head loss due to friction in a pipe. Hazen-Williams coefficient is a function of only the pipe roughness vs Darcy-Weisbach which considers internal roughness,…
3″ Sewer Pipe – Slope, Dimensions, and Relining
A 3-inch sewer pipe slope should be between 3/16″ and 5/16″ per foot. In this article, we will review how to determine the slope of a 3″ sewer pipe, a…
Sarah DeGuzman SDR 11 vs. SDR 17
The SDR rating scheme for the pipe includes SDR 11 and SDR 17. At a 100°F operating temperature, SDR 11 provides a pressure rating of 126psi vs SDR 17, which…
SDR 21 vs SDR-26
SDR 21 and SDR 26 are both under the SDR rating system for the pipe. SDR 21 has a 200 psi rating, vs SDR 26 which has a 160 psi…
Pipe Obvert Elevation – Implication, Calculation, and Applications
Pipe obvert elevation is the vertical distance between the inside-top of a pipe and any datum. Moreover, the term ‘obvert’ means to turn. The obvert measurement mirrors the pipe invert,…
SDR 11 vs. SDR 13.5 – Comparision and Pipe Properties
SDR 11 vs. SDR 13.5 both categorize under the SDR rating system for the pipe. The SDR (standard dimension ratio) is a pressure pipe rating method. The SDR increases as…
NPT vs NPTF, NPS, JIC, MIP – A Comparison of Various Threads
NPT and NPTF are standard thread designs that enjoy wide levels of adoption in industry. For pipes, the NPT threading requirements should be as per ANSI B1.20.1, while NPTF requirements…
SDR 26 vs SDR 35 – Comparison and Pipe Properties
SDR 26 and SDR 35 both categorize under the SDR rating system for pipe. At 5% deflection, the SDR 26 pipe can undergo pressurization of 115psi vs the SDR 35…