HYDRAULIC fluidsTRANSIENT analysisVALVESDISCHARGE coefficientSYSTEMS developmentIn this study, several types of valves were used to study the impact of the valves types and closure characteristics on fluid transients. The valve closure curves, which are the variation of the effective v...
[Translate to Chinese / Chinesisch:] Pressure valves perform a central control and protection function in hydraulic systems. They regulate the pressure of the hydraulic oil and ensure that machines work reliably, safely and efficiently. This applies to mobile appli...
Valve, in mechanical engineering, device for controlling the flow of fluids (liquids, gases, slurries) in a pipe or other enclosure. Control is by means of a movable element that opens, shuts, or partially obstructs an opening in a passageway. Valves are
Pipeline, line of pipe equipped with pumps and valves and other control devices for moving liquids, gases, and slurries (fine particles suspended in liquid). Pipeline sizes vary from the 2-inch- (5-centimetre-) diameter lines used in oil-well gathering s
Although not known to the public, it has a long-standing reputation in the industry and is a major European and American hydraulic importer in China. An important supplier. Hydraulic motors, hydraulic steering gears and hydraulic directional control valves account for about 30% of China's ...
The following inputs are required for the design of the restriction orifice: PFD and P&ID Hydraulic CalculationSheet PMS Line operating conditions like upstream-downstream pressure, temperature, flow rate, line size, Density,Viscosity, molecular weight, Cp/Cv, vapor pressure, etc. ...
The point feature class is made up of points that indicate the location of feetures, such as manholes, fittings, valves, etc. For more information, see Feature Class Type: Point. Polygon The polygon feature class is made up of line segments that form a closed region. The line segments...
Internal diameter of the heat exchanger tube, m ṁ Mass flow rate, kg/s Q Heat, kJ Q̇ Thermal power, W R Experimental uncertainty Re Reynolds number t Time, s T Temperature, K Greek symbols ϒ Thermal power gain factor ΔtC Duration of the charging process, s ΔtD Duration of ...
mechanical means. A modern day elevator consists of a cab (also called a “cage” or “car”) mounted on a platform within an enclosed space called a shaft, or in Commonwealth English called a “hoistway”. In the past, elevator drive mechanisms were powered by steam and water hyd...
Pump, a device that expends energy in order to raise, transport, or compress fluids. The earliest pumps were devices for raising water, such as the Persian and Roman waterwheels and the more sophisticated Archimedes screw (q.v.). The mining operations of