Read 345-398_7_TM43.qxp text version

345-398_7_TM43.qxp

05.09.2006

17:42

Seite 363

Automation: 7.4 Hydraulics, Pneumatics

363

cf. DIN ISO 1219-1 (1996-03)

Circuit symbols

Function elements

Hydraulic fluid flow Compressed air flow Direction of flow Direction of rotation Adjustability

M

Spring Flow restriction

Power transmission

Hydraulic pressure source Pneumatic press. source Working line Control line Leakage current line Envel. around subassemblies Line junction Muffler Tank Pressure tank Hydraulic accumulator Service unit (FRL) Air dryer Filter or screen

P

Line crossing Quick coupling Exhaust without connection Exhaust with connection

Water separator

TD

Lubricator

Pumps, compressors, motors

Fixed displacement hydraulic pump, unidirectional Variable displacement hydraulic pump, bidirectional Compressor, unidirectional

Fixed displacement hydraulic motor, unidirectional Fixed displacement pneumaticmotor, unidirectional

Variable displacement hydraulic motor, bidirectional Variable displacement pneumatic motor, bidirectional

Hydraulic rotary drive

MS

Pneumatic rotary drive

M

Electric motor

ME

Double-acting cylinder with one-sided piston rod and twosided adjustable end cushion

Single-acting cylinders

Double-acting cylinders

simplified:

Single-acting cylinder, return stroke by undefined power source

simplified:

Single-acting cylinder, return stroke by integrated spring

simplified:

Double-acting cylinder with one-sided piston rod

simplified:

PE

Shut off valves

Check valve, unloaded

Pressure valves

Pressure relief valves

Flow control valves

Adjustable throttle valve 2-way flowcontrol valve with variable output

Pilot operated check valve

Check valve, spring loaded One-way flow control valve

Sequence valve 2-way pressure regulator, directacting Pressure switch, emits electrical signal for a preset pressure

A

Shuttle valve (OR function)

Quick exhaust valve

Dual-pressure valve (AND function)

3-way flowcontrol valve with variable output, relief opening to tank

S

Information

345-398_7_TM43.qxp

1 pages

Find more like this

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

1080488


You might also be interested in

BETA
untitled
Specalog for 928Gz Wheel Loader, AEHQ5611_01, 10350204.qxd
Hydraguide HGA Series Hydrostatic Steering System
TORO 0010 Technical specification