Mon premier blog

Water Hammer in Pipe-Line Systems J. Záruba
Publisher: Elsevier Science

Two leaks have been discovered in the public water system serving a Lakeport-area subdivision where a monthslong landslide has rendered at least seven homes uninhabitable. Complete logs, reports, work orders, requisitions, and other records and communications as required. Lay out full scale drawings of pipe systems, supports, and related hangers, and hydraulic cylinders, according to specifications. Inspect, examine, and test installed systems and pipe lines, using pressure gauge, hydrostatic testing, observation, or other methods. In all building supply systems in which devices or appurtenances are installed which cause noises due to water hammer, protective devices or approved mechanical shock absorbers shall be installed as close as possible to the quick-acting valve causing the water hammer. Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe. Piping network remains cool and as soon as the hot steam enters, condensation takes place and water gets accumulated in the lines forming a Slug. By Jrbott: Install a water hammer unit in the line to absorb the shock wave. Steam hammering is the sound that is heard as a pinging, rattling, or banging in a steam system under conditions of Start-up, shutdown, changing loads or even in few cases, steady state full load operation. If it is not carefully controlled, the Determined to find a solution that really worked, Glenfield Valves (part of AVK Group since 2001) put theory and trial-and-error aside and studied what really happens in the pipeline when water hammer occurs. Water hammer is a common problem in supply systems whenever the steady state condition of the flow is interrupted by sudden changes such as pump stoppage or start-up. Cut, thread, and hammer pipe to specifications. Excess water pressure can also cause this so have your plumber check the water pressure in the system. Before I secured the new tubing in place, I tested out the water line to make sure I was happy with the results, and found I had created perfect conditions for a banging pipe. Hence the analysis effort to determine the installation period will generally not be of benefit, particular for lines where higher temperatures mean thermal expansion must be accommodated in the inlet and/or discharge piping. Cut and thread pipe for water and gas service boxes. .Relief valves discharging into an enclosed piping system create momentary unbalanced forces which act on the piping system during the first few milliseconds following relief valve lift.