I’m overseeing the plans and specifications for construction of a 100,000 gallon AWWA D103 water tank with a bolted steel shell and floor that my company is purchasing. The tank is being constructed in an area with frequent significant seismic activity (Los Angeles). The current design calls for...
Are lead caulked joints as encountered in older cast iron water main lines (such as Class 250 or AWWA Class A pipe) considered to be restrained joints? Looking at the geometry of the joint, it looks like it should be self-restraining. It also looks like any movement caused by external force...
I recently posted this question in the piping and fluid mechanics category. I am guessing that some readers of this thread may have some answers or insight, so I am posting it again here.
I am in the process of developing standards for my company for 3-6” fittings used in buried pvc...
I am in the process of developing standards for my company for 3-6” fittings used in buried pvc pressurized pipe applications carrying reclaimed water at ambient temperature. I have been looking into the possibility of using stainless steel fittings in new additions to this system, but have...
It is my understanding that pressure derating for tapered thread (npt) pvc pipe/fitting connections is 50%. However, I know that FEMALE pvc threaded fittings are more susceptable to breakage (splitting). My question: would connecting a threaded sch 80 pvc nipple to a brass female fitting also...
I am reviewing engineering standards for my company's irrigation systems. I am looking at design and maximum fluid velocites in our mains and transite lines. They are C-900 or C-905 PVC typically ranging 6"-18". We use reclaimed water. I am concerned that 5 fps may present...
