Summary of the pneumatic symbols based on DIN ISO 1219
Energy conversation |
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Single acting cylinder, return movement by external force |
Double acting cylinder with double-ended piston rod and adjustable cushioning at end of stroke and magnetic piston | |||
Single acting cylinder, return movement by spring |
Pneumatic motor with limited range of swivel | |||
Double acting cylinder |
Pressure intensifier for the same fluid | |||
Double acting cylinder with double-ended piston rod | Pressure intensifier for air and liquid | |||
Double acting cylinder with adjustable cushioning at end of stroke | Compressor | |||
Double acting cylinder with double-ended piston rod and adjustable cushioning at end of stroke | Vacuum pump |
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Double acting cylinder with adjustable cushioning at end of stroke and magnetic piston | ||||
Directional control valves | ||||
2/2-way valve, manually actuated | 3/2-way valve, normally closed, actuated by roller lever | |||
2/2-way valve, normally closed, solenoid actuated | 3/2-way valve, normally opened, actuated by roller lever | |||
2/2-way valve, normally opened solenoid actuated | 3/2-way valve, normally closed, actuated by roller lever with idle return | |||
3/2-way valve, manually actuated | 3/2-way valve, normally closed, indirect solenoid actuated | |||
3/2-way valve, actuated by lever | 3/2-way valve, normally opened, indirect solenoid actuated | |||
3/2-way valve, actuated by pushbutton | 5/2-way valve, actuated by lever | |||
3/2-way valve, actuated by pedal | 5/2-way valve, actuated by pushbutton | |||
3/2-way valve, pneumatically actuated, monostable | 5/2-way valve, actuated by pedal | |||
3/2-way valve, pneumatically actuated, bistable | 5/2-way valve, pneumatically actuated, monostable | |||
5/2-way valve, pneumatically actuated, bistable | 5/3-way valve, actuated by lever, center position closed | |||
5/2-way valve, indirect solenoid actuated, monostable | 5/3-way valve, actuated by lever, center position exhausted | |||
5/2-way valve, indirect solenoid actuated, bistable | 5/3-way valve, indirect solenoid actuated, center position closed | |||
5/3-way valve, indirect solenoid actuated, center position opened | ||||
Directional control valves generally and control mechanisms |
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2 positions |
Roller lever with idle return |
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3 positions | Direct solenoid |
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Manual control - general |
Direct application of pressure |
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Pushbutton | Direct application by pressure relief |
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Lever | Indirect application of pressure (pilot) |
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Pedal | Solenoid and pilot valve |
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Plunger | Solenoid and pilot valve with manual override |
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Spring | Detent for 3 positions |
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Roller lever |
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Air preparation |
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Filter | Dryer | |||
Water separator |
Lubricator | |||
Water separator with automatic drain |
Standard unit (filter pressure regulator with gauge, lubricator), simplified representation |
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Filter with water separator with automatic drain |
Pressure regulator |
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Energy transmision, valves |
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Working line |
Gauge | |||
Control line |
Pressure source |
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Exhaust line |
One-way flow control valve, adjustable |
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Flexible pipeline |
Bidirectional flow control valve, adjustable |
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Line connection |
Pressure switch |
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Quick qoupling with mechanically opened non-return valves, coupled |
Check valve with spring |
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Rotary connection with 1 path |
Piloted check valve |
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Rotary connection with 2 paths | OR disjunction (logical sum) |
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Silencer | AND conjunction (logical product) |
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Quick exhaust valve |
Pneumatic capacitor |