A check valve is a simple device incorporating a spring-loaded poppet within a housing featuring two ports, A and B. This design enables easy flow from port A to port B. It effectively prevents any reverse flow from port B back to port A. An accompanying animation enhances understanding of how a check valve operates.

It is common practice to install the valve downstream of a pump. This setup allows the flow generated by the pump to enter the system. Additionally, this valve plays a vital role. It protects the pump from potential shock pressures that occur within the system.

A rapid and sudden increase in pressure generally causes hydraulic shock. It happens when flowing fluid is interrupted too quickly due to sudden valve shifting. It can also occur when fluid in a large bore cylinder decompresses too quickly. This leads to high-pressure fluid rapidly discharging into the hydraulic reservoir.

The accompanying video provides a valuable illustration of this particular application of the check valve.

By

Joji Parambath

Resource Person / Author

Note: This blog series featuring circuit simulation is for those seeking firsthand information on hydraulic circuits.

References:

1. Hydraulic Circuits – Identification of Components and Analysis

Available on Amazon market places.

Link to Amazon Marketplaces:

US            UK        DE          FR          ES           IT            NL          PL           SE           JP           CA          AU

About the Author

Joji Parambath is an accomplished expert in Pneumatics, Hydraulics, and PLC with an extensive 25-year background in the field. Over the course of his career, he has trained many professionals from diverse industries, faculty members, and engineering students.

Joji is the primary faculty member at Fluidsys Training Centre in Bangalore, India. The centre offers comprehensive training in Pneumatics and Hydraulics. He has authored 39 impressive books on the subject. All of them are designed to convey knowledge in a simplistic and easy-to-understand manner.

For more details on hydraulic circuits, please visit https://jojibooks.com

For information on pneumatic and hydraulic training, please visit https://fluidsys.in