Ads
related to: hoffer flow controls series 46
Search results
Results From The WOW.Com Content Network
A Larner–Johnson valve is a mechanism used in dams and water pumping to control the flow of water through large pipes. The valve is suited to handling high velocity flow with minimal turbulence, even when partially open, and the actuating force can be provided by the water flow it is controlling.
HSCS Tractor RB series c1935 Factory Watertower on the Floridsdorf site. The company continued to expand and after World War I HSCS became the largest tractor manufacturer in eastern Europe. The Vienna factory in Floridsdorf was appropriated in 1938 by Heinrich Lanz AG of Mannheim at the time of the Anschluss in Austria.
For instance, some have internal feedback so that the input signal effectively control flow or output pressure, rather than spool position. Servo valves are often used in a feedback control where the position or force on a hydraulic cylinder is measured, and fed back into a controller that varies the signal sent to the servo valve. This allows ...
Active control requires actuators that require energy and may operate in a time-dependent manner. [1] Active flow control includes steady or unsteady suction or blowing, [2] the use of synthetic jets, valves and plasma actuators. Actuation may be pre-determined (open-loop control) or be dependent on monitoring sensors (closed-loop control).
A unified power flow controller (UPFC) is an electrical device for providing fast-acting reactive power compensation on high-voltage electricity transmission networks. It uses a pair of three-phase controllable bridges to produce current that is injected into a transmission line using a series transformer. [ 1 ]
The company was created in 1997 with the merger of two fluid motion and control companies: BW/IP and Durco International. Acquisitions include HydroTechnik Olomouc in 2006, [9] Sealing Systems in 2007, [10] Calder AG in 2009 [11] and Valbart Srl in 2010. [12] In October 2011 Flowserve acquired Lawrence Pumps Inc.