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Pneumatic Symbols

CPP PREMA pneumatic symbols

Pneumatic symbols: cylinders, valves and compressed air preparation

Find a symbol from a pneumatic diagram, understand its function and go directly to related CPP PREMA product categories. This catalogue includes pneumatic cylinder symbols, 3/2 and 5/2 valve symbols, check valves, pressure gauges, regulators and air preparation units.

Most searched pneumatic symbols

Fast paths to symbols commonly used in pneumatic design, maintenance and spare-part selection.

100 symbols with descriptions and product links

Pneumatic cylinder symbol

Compare single-acting, double-acting, double-rod, tandem, telescopic and rodless cylinder symbols.

Go to symbolPneumatic cylinders

Check valve symbol

Find the symbol for a valve that allows compressed air to flow in one direction only.

Go to symbolCheck valves

5/2 valve symbol

A five-way, two-position valve is commonly used to control a double-acting pneumatic cylinder.

Go to symbolDirectional valves

3/2 valve symbol

See normally closed and normally open variants and go to the directional valve category.

Go to symbolSelect a valve

Air preparation unit symbol

Check the FRL unit symbol: filter, pressure regulator and lubricator combined in one assembly.

Go to symbolAir preparation

Pressure gauge symbol

Symbol for a pressure measuring and indicating device used in pneumatic installations.

Go to symbolPressure gauges

Throttle and one-way flow control valve

Symbols used for flow control in one or both directions of system operation.

Go to symbolFunctional valves

Safety valve

If you are protecting a compressed air installation, check a pressure-control related symbol and the CPP PREMA safety valve category.

Go to symbolSafety valves

Compressed air dryer

A dryer is part of compressed air treatment. Check the related air preparation symbol and the dryer category.

Go to symbolAir dryers

Pneumatic symbols catalogue

Filter by group or type an element name, for example cylinder, 5/2 valve, check valve, pressure gauge, regulator, filter or throttle.

100 / 100 symbols
No results. Try a shorter phrase, for example valve, cylinder, 3/2 or filter.
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Element mechaniczny - symbol pneumatyczny

Basic symbols · PDF p. 3

Mechanical element

Symbol for a mechanical part of a device, such as a shaft, lever or piston rod.

piston rod drawing symbolmechanical schematic symbol
View products: cylinder accessories
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Ruch obrotowy - symbol pneumatyczny

Functional elements · PDF p. 4

Rotary motion

Symbol for rotary movement in a given direction.

rotary actuator symbolpneumatic motor symbol
View products: pneumatic cylinders
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Zamknięcie drogi przepływu - symbol pneumatyczny

Functional elements · PDF p. 4

Flow path shut-off

Indicates a closed channel or shut-off flow path, for example a plug or cap.

shut-off valve symbolmain compressed air valve
View products: 3/2 shut-off valves
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Połączenie przewodów lub kanałów - symbol pneumatyczny

Lines and connections · PDF p. 5

Connected lines or ports

Indicates connected lines or channels in a pneumatic circuit.

pneumatic line connection symbol
View products: tube and hose fittings
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Skrzyżowanie przewodów bez połączenia - symbol pneumatyczny

Lines and connections · PDF p. 5

Crossing lines without connection

Line or channel crossing without contact between the flowing media.

pneumatic schematic symbols
View products: tube and hose fittings
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Tłoczysko - symbol pneumatyczny

Basic symbols · PDF p. 6

Piston rod

Linear movement in two directions: extension and retraction.

piston rod symbolpneumatic cylinder markings
View products: pneumatic cylinders
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Sterowanie jednostopniowe wzrostem ciśnienia - symbol pneumatyczny

Actuation and control · PDF p. 11

Single-stage pilot control by pressure increase

Auxiliary control using pressure increase and internal pilot supply.

pneumatically actuated valve symbol
View products: pneumatically actuated valves
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Sterowanie jednostopniowe spadkiem ciśnienia - symbol pneumatyczny

Actuation and control · PDF p. 11

Single-stage pilot control by pressure decrease

Auxiliary control using pressure decrease and internal pilot supply.

pneumatically actuated valve symbol
View products: pneumatically actuated valves
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Silnik pneumatyczny stałoobjętościowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 12

Fixed-displacement pneumatic motor

Pneumatic motor with fixed displacement.

pneumatic motor symbolpneumatic motor diagram

Functional symbol without a separate product category in this list.

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Silnik pneumatyczny zmiennoobjętościowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 12

Variable-displacement pneumatic motor

Pneumatic motor with variable displacement.

pneumatic motor symbol

Functional symbol without a separate product category in this list.

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Silnik pneumatyczny dwukierunkowy stałoobjętościowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 12

Bidirectional fixed-displacement pneumatic motor

Pneumatic motor with two flow directions and fixed displacement.

pneumatic motor symbol

Functional symbol without a separate product category in this list.

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Silnik pneumatyczny dwukierunkowy zmiennoobjętościowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 12

Bidirectional variable-displacement pneumatic motor

Pneumatic motor with two flow directions and variable displacement.

pneumatic motor symbol

Functional symbol without a separate product category in this list.

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Siłownik wahadłowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 12

Oscillating actuator

Oscillating actuator with limited rotation angle and two directions of rotation.

oscillating actuator symbol
View products: pneumatic cylinders
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Siłownik pneumatyczny dwustronnego działania - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Double-acting pneumatic cylinder

Double-acting cylinder with a single-sided piston rod.

pneumatic cylinder symboldouble-acting cylinder symbol
View products: pneumatic cylinders
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Siłownik jednostronnego działania pchający - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Single-acting pushing cylinder

Single-acting pneumatic cylinder for pushing motion.

single-acting cylinder symbol
View products: pneumatic cylinders
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Siłownik jednostronnego działania ciągnący - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Single-acting pulling cylinder

Single-acting pneumatic cylinder for pulling motion with a spring.

single-acting cylinder symbol
View products: pneumatic cylinders
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Siłownik z jednostronną amortyzacją - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Cylinder with one-sided cushioning

Double-acting cylinder with one-sided pneumatic cushioning.

pneumatic cylinder diagram
View products: pneumatic cylinders
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Siłownik z amortyzacją dwustronną i BSPT - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Cylinder with adjustable two-sided cushioning and piston sensing

Double-acting cylinder with adjustable cushioning on both sides and non-contact piston position sensing.

piston position sensor symbol
View products: pneumatic cylinders
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Siłownik z dwustronnym tłoczyskiem - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Double-rod cylinder

Double-acting pneumatic cylinder with a piston rod on both sides.

pneumatic cylinder markings
View products: pneumatic cylinders
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Siłownik z dwustronnym tłoczyskiem i amortyzacją - symbol pneumatyczny

Energy converters and actuators · PDF p. 13

Double-rod cylinder with cushioning

Double-acting cylinder with rods on both sides and adjustable cushioning on both sides.

pneumatic cylinder symbol
View products: pneumatic cylinders
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Siłownik z wydrążonym tłoczyskiem - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Cylinder with hollow piston rod

Double-acting cylinder with a hollow double-sided piston rod and piston.

pneumatic cylinder symbol
View products: pneumatic cylinders
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Siłownik pneumatyczny udarowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Impact pneumatic cylinder

Symbol for an impact pneumatic cylinder.

pneumatic cylinder symbol
View products: pneumatic cylinders
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Siłownik tandem - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Tandem cylinder

Double-acting tandem pneumatic cylinder with a single-sided piston rod and piston position sensing.

tandem cylinder symbol
View products: pneumatic cylinders
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Siłownik teleskopowy jednostronnego działania - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Single-acting telescopic cylinder

Single-acting telescopic cylinder.

telescopic cylinder symbol
View products: pneumatic cylinders
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Siłownik beztłoczyskowy - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Rodless cylinder

Double-acting rodless cylinder with adjustable cushioning on both sides and piston position sensing.

rodless cylinder symbol
View products: rodless pneumatic cylinders
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Siłownik z hamulcem mechanicznym - symbol pneumatyczny

Energy converters and actuators · PDF p. 14

Cylinder with mechanical brake

Double-acting single-rod cylinder with a pneumatically released mechanical brake.

piston rod lockpneumatic cylinder diagram
View products: pneumatic cylinders
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Przykład: zawór 4/2 z przyciskiem - symbol pneumatyczny

Directional control valves · PDF p. 18

Example: 4/2 valve with push button

4/2 directional valve, monostable, spring return, manually actuated by a push button.

4/2 valve symbolpush button symbol
View products: push-button operated valves
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Przykład: zawór 5/2 sterowany pneumatycznie - symbol pneumatyczny

Directional control valves · PDF p. 18

Example: pneumatically actuated 5/2 valve

5/2 directional valve, bistable, pneumatically actuated from both sides.

5/2 valve symbolpneumatically actuated valve symbol
View products: pneumatically actuated valves
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Przykład: zawór 5/3 sterowany elektrycznie - symbol pneumatyczny

Directional control valves · PDF p. 18

Example: electrically actuated 5/3 valve

5/3 directional valve, electrically actuated from both sides with pneumatic assistance and spring centring.

5/3 valve symbolpneumatic solenoid valve diagram
View products: electrically actuated valves
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Zawór zwrotny - symbol pneumatyczny

Functional and logic valves · PDF p. 19

Check valve

Opens when inlet pressure is higher than outlet pressure and allows air to flow in one direction only.

check valve symbolpneumatic check valve symbol
View products: check valves
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Zawór logiczny AND - symbol pneumatyczny

Functional and logic valves · PDF p. 19

AND logic valve

Dual-pressure valve: the outlet opens only when both inlet ports are supplied.

pneumatic logic valve symbolAND valve symbol
View products: pneumatic logic valves
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Zawór logiczny OR - symbol pneumatyczny

Functional and logic valves · PDF p. 19

OR logic valve

Shuttle valve: the inlet with higher pressure is connected to the outlet.

pneumatic logic valve symbolOR valve symbol
View products: pneumatic logic valves
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Zawór dławiąco-zwrotny - symbol pneumatyczny

Functional and logic valves · PDF p. 19

One-way flow control valve

Allows free flow in one direction and regulates flow in the opposite direction.

one-way flow control valve symbolthrottle check valve symbol
View products: functional, throttle and check valves
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Filtr sprężonego powietrza - symbol pneumatyczny

Air preparation · PDF p. 20

Compressed air filter

General filter symbol. The filter removes solid particles and small amounts of water from compressed air.

compressed air filter symbol
View products: compressed air filters
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Zespół przygotowania sprężonego powietrza - symbol pneumatyczny

Air preparation · PDF p. 21

Compressed air preparation unit

Filter with manual condensate drain, pressure regulator and lubricator combined in one block.

air preparation unit symbolFRL unit symbol
View products: compressed air preparation units
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Manometr - symbol pneumatyczny

Air preparation · PDF p. 21

Pressure gauge

Measuring instrument and indicator for pressure value.

pressure gauge symbolpressure symbol
View products: pressure gauges
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Przetwornik ciśnienia - symbol pneumatyczny

Air preparation · PDF p. 21

Pressure switch / pressure transducer

Pneumatic-electric switch generating an electrical signal after a preset pressure value is exceeded.

pressure switch symbolpressure sensor symbol
View products: pneumatic-electric pressure switches

How to choose a pneumatic component from a symbol

A schematic symbol is not a product photo. It describes the component function: valve ports and positions, type of actuation, flow direction, adjustability, exhaust method or actuator motion. This helps you move from machine documentation to the right product category faster.

Pneumatic cylinders

When reading a cylinder symbol, check whether the actuator is single-acting or double-acting, whether it has a rod on one or both sides, whether cushioning is shown and whether non-contact piston position sensing is included.

Pneumatic valves

Designations such as 3/2, 4/2, 5/2 or 5/3 describe the number of ports and positions. Additional symbols indicate manual, mechanical, pneumatic or solenoid actuation.

Compressed air preparation

Filters, regulators, lubricators, pressure gauges and pressure switches help control medium quality and system parameters. An FRL unit combines several functions in one block.

The catalogue is based on CPP PREMA materials and links to related store categories. If you know the symbol from technical documentation, use the page search to find the matching component type.

Frequently asked questions about pneumatic symbols

Short answers to help you move from a schematic symbol to the right pneumatic component.

How do I find a pneumatic cylinder symbol?

Use the search field and type “cylinder”, or select the energy converters and actuators group. You will find single-acting, double-acting, double-rod, tandem, telescopic and rodless cylinder symbols.

What is the difference between a 3/2 and a 5/2 pneumatic valve symbol?

The first number indicates the number of ports and the second number indicates the number of positions. A 3/2 valve has three ports and two positions, while a 5/2 valve has five ports and two positions.

How do I select a product from a check valve symbol?

Go to the “Check valve” card, read the function description and use the product link to open the CPP PREMA check valve category.

Is there a separate compressed air dryer symbol in this catalogue?

This catalogue shows air preparation symbols such as filters, regulators, lubricators, pressure gauges and FRL units. Air dryers are related air treatment products, so the page links to the dryer category.