Maintenance of CNC machine

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.

Above symbol is Hydraulic symbol of pressure switch.It provides feed of pressure. When the Hydraulic pressure reached to set pressure,its contact will change. For More details click here. CNC Programming and CNC maintenance-Click here.

Hydraulic valve symbol-4/2 directional control valve symbol. In this valve there are 4 port and two positions.P is pressure port.R is return line port.A & B are application ports connected to cylinder or hydro motor. For more details-Click here. Learn CNC programming-click here.

3 position 4 way valve symbol or 4/3 directional control valve symbol. It has 4 ports/ways-P,T,A and B. P is pressure port.T is tank.A and B connected to cylinder. Center position is close type. During middle position all ports are closed. In right position P is connected to A and Read more…

Symbol for pressure relief valve explained. Working principle of Pressure relief valve In this valve the oil will be released to tank if the pressure exceed the set pressure. Normally this valve is closed.A pilot line is connected from input to spool which is close the path through spring pressure. Read more…

Hydraulic/auto cad symbol of flow meter.It indicate the flow rate of fluid. For more details click here. Learn Hydraulic system. Learn CNC Programming

This is the symbol of check valve for hydraulic system.Check valve is used in hydraulic system for one direction flow. It will restrict the oil return flow. Function of check valve In this valve one ball is used,which will allow only one direction flow. Some times spring will be used Read more…