Pneumatic And Hydraulic Equipment Page 1354

Graphic Symbols CYLINDER Single-Acting Single-Acting Spring Return Double-Acting Double-Acting With Piston Rod on Both Ends HYDRAULIC PUMPS Fixed Displ. Undirect. Fixed Displ. Bidirect. Variable Displ. Unidirect Variable Displ. Over Cntr. Variable Displ. Pres. Compensator Over Center w/Comp. Fixed Displ. Unidirect. Fixed Displ. Bidirect. Variable Displ. Unidirect Bidirect. w/Press. Electric Motor HYDRAULIC & ELECTRIC MOTORS 2-Way, N.C. 2-Position 2-Way, N.O. 2-Position 3-Way, Directional Control 3-Way Selector 2-WAY & 3-WAY VALVES General Purpose Manual Lever Foot Operated Cam Operated Pilot Operated Button Bleeder Solenoid Operated Spring Return Pressure Compensated Pilot and Solenoid 3-Position Detent Palm Button 4-Way Servo Valve ACTUATORS FOR VALVES These are the more common ANSI graphic symbols from the American National Standards Institute for use on fluid power circuit drawings. 2-Position Double Actuator 2-Position Single Actuator Proportional Solenoid Valve Spool Centers for 3-Position Valves Closed Center 4-Way Servo Valve 3-Position Spring Centered 4-WAY VALVES Float Center Open Center Tandem Center Relief Valve Fixed Orifice Needle Valve Flow Control Valve with Bypass Pressure Compensated Flow Control w/Bypass Heat Exchanger Pressure Gauge Shuttle Valve Manual Shut-Off Relief Valve with Vent Sequence Valve Pressure Reducing Valve Pressure Compensated Flow Control Valve Accumulator Check Valve Pilot to Open Check Valve Pilot to Close Check Valve (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 1354 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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