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A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle ...
A Pressure regulator or regulating valve may be required to reduce the system pressure to the desired level. [1] Automatically or manually operated valves are required to switch from one irrigated section to another. An irrigation controller is used with automatic systems and may be needed for back flushing the filter or sand separator.
Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation.
The smaller the diameter and the longer the tube, the greater the friction loss, thus reducing the pressure and flow. The end of the tube may have a plastic or lead weight to hold the tube in a pot. Microtubing is one of the oldest products made for drip irrigation, having been manufactured for about fifty years.
They differ from pressure reducing regulators in that the pressure reducing regulator controls downstream pressure and is insensitive to upstream pressure. [2] It is a normally-closed valve which may be installed in parallel with sensitive equipment or after the sensitive equipment to provide an obstruction to flow and thereby maintain upstream ...
Rivulis Ro-Drip – molded emitter drip lines. [16] Rivulis H6000 PE Layflat – layflat with pre-installed outlets. [17] D5000 CX: Pressure compensated (PC) drip line with copper oxide blended into each dripper to reduce root intrusion. [18] Rivulis ReelView: Cloud-based crop and field monitoring application. [19]