Chapter 5 Hydraulic Control Valves 南 10 a) b) Fig.5-3 Hydraulic-operated a)General type check valve b)Hydraulic operated check valve 1,6-Spring 2,8-Valve core 3,9-Handspike 4,10-Control piston 5-Small discharged core 7-Spring seat 12 Homepage List Upwards Downward止 Return Exit Chapter 5 Hydraulic Control Valves 12 、 Fig. 5-3 Hydraulic-operated a) General type check valve b) Hydraulic operated check valve 1,6- Spring 2,8- Valve core 3,9-Handspike 4,10-Control piston 5－Small discharged core 7－Spring seat