Basic Hydraulic Check Valves in SIMAC Hydraulic Systems
Explore the design, functions, advantages, and disadvantages of basic hydraulic check valves, including ball, poppets, and pilot-operated variants. Learn how these valves are used in hydraulic systems for various applications such as bypassing throttling points, closing one-direction flow, and creating backpressure in operating cycles.
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Presentation Transcript
SIMAC Hydraulic 2 Basic Hydraulic Check Valves
Basic Hydraulic Check Valves
Basic Hydraulic Check Valves Valve design Ball Poppets Simple Check Valve Rectifier circuit Pilot operated check valve Without drain port With drain port Double pilot operated check valve (Load holding valve)
Basic Hydraulic Check Valves Valve design Advantage: Disadvantage: Ball is deformed during operation causing internal leaked due to the seat is not pressed onto the same point Produced economically
Basic Hydraulic Check Valves Valve design Advantage: Poppets always resume the same position due to their control, the seat and the valve is completely sealed. Disadvantage: Production is more technically advanced
Basic Hydraulic Check Valves Simple Check Valve Check valves are used For bypassing throttling points For closing one direction flow As bypass valves, e.g. for bypassing a return line filter when a particular back pressure has been reached As pretension valves (holding valves) to create a certain backpressure in an operating cycle
Basic Hydraulic Simple Check Valve Rectifier circuit
Basic Hydraulic Pilot operated check valve Without drain port
Basic Hydraulic Pilot operated check valve Without drain port
Basic Hydraulic Pilot operated check valve With drain port
Basic Hydraulic Pilot operated check valve With drain port
Basic Hydraulic Double pilot operated check valve
Basic Hydraulic Double pilot operated check valve
Basic Hydraulic Check Valves - More information Video Check valves 02:04 AVSEQ12
Basic Hydraulic Exercise - Automation Studio Exercises Exercise 4.1 - Check valve without case drain port Exercise 4.2 - Double pilot operated check valve Pressure p Cylinder = Area Force F F = = 2 F m g p A d A 4
