Viscosity is the fundamental property of a fluid that describes its resistance to flow. Viscosity remains one of the most interesting and mysterious concepts in fluid dynamics. The word viscosity comes from the Latin word viscum, meaning “sticky,” which conveys a vivid image of a fluid’s reluctance to cascade smoothly. Read more…
Cylinder extension speed formula Speed(meter/Minute)=LPM X 231/Effective piston Area. Piston force formula: Force=Pressure x Effective piston area. Flow rate formula: LPM=(Effective piston area X Speed)/231 For more details-Visit here.
Example,diagram and application of hydraulic actuators.Types and principle and parts of hydraulic actuators. What is a hydraulic actuators? This is a mechanical device which transfer the force created by hydraulic fluid to some useful purpose. What are the types of hydraulic actuators? Two types-Linear and rotary. Linear-Cylinder piston Rotary-Hydro Motor Read more…
Difference between Pneumatics and Hydraulics systems,actuators,cylinder,machines,pressure gauge and symbols. Differentiate pneumatics and hydraulics system Pneumatic system Hydraulic system 1-Pressure developed by compressor. 1-Pressure developed by pump. 2-Pressure can be stored. 2-Pressure is used immediately. 3-Pressure can transfer upto 1000m. 3-Upto 100m only. 4-Air flow because of pressure difference between source Read more…
There are three types filter in hydraulic system.Suction filter or strainer,inline filter and return line filter. Strainer Suction filter restrict contamination of suction oil for pump. Inline filter Inline filter clean the oil after pump before component. Return line filter Return line filter clean oil after component and before return Read more…
When the inlet pressure of pump is reduced to the vapour pressure of the oil,the liquid get vaporized and cavity formed.This is called pump cavitation. Cavitation may take place when oil sucked into pump is not sufficient to fill the space created by pump rotational element. Cavitation in pump causes/symptoms Read more…
The function of flow control valve is to regulate the speed of actuators/piston/hydro motor. Unit of oil flow is LPM-Litre Per Minute. The volume of oil deliver per unit time is called flow.The oil flow can be controlled by flow control valve. In this valve the oil flow path or Read more…
Types,purpose,working principle,diagram and trouble shooting of direction control valve in Hydraulic system. Purpose of Direction control valve in hydraulic system DCV are used to control the actuators.For example-Forward and reverse movement of piston can be controlled by DCV. Direction control valve can be divided into two types Sliding spool type Read more…
P & ID symbol of globe valve is- For more details visit here. Learn CNC Programming and Maintenance-Click here.
Hydraulic pressure reduction valve symbol. In this valve Pressure line or oil flow line is block by spring pressure .When the oil pressure exceed spring pressure the oil flow line will connect. Excess oil flow to tank. For More details click here. Hydraulic Maintenance-Click here.