Tag Archives for Relief Valve

Hydraulic Pilot Operated Relief Valve

A pilot-operated relief valve has the same function as a direct-acting relief valve; however, it has a different pressure vs. flow curve. The performance curves for the two types of relief valve are given in Fig. 3.7. The pilot-operated valve … Continue reading

23. December 2009 by and
Categories: Hydraulic Pressure Control | Tags: , , , | Leave a comment

Hydraulic Direct Acting Relief Valve

A schematic of a direct-acting relief valve is shown in Fig. 3.4. Pressure acts on the annular area of the valve spool. The hydraulic force is given by The notation Fs will be used for the spring force. When Fh … Continue reading

23. December 2009 by and
Categories: Hydraulic Pressure Control | Tags: , , , | 1 comment