Download - Hydraulic & Pneumatic Symbols
![Page 1: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/1.jpg)
Basic symbols
Rectangle Usually valves
Restriction depending Restriction depending on the viscosity
Restriction independing Restriction independing on the viscosity
Spring Spring
Square Usually valves
Square on a corner Conditional unit
![Page 2: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/2.jpg)
Square. Usually valves
Square.. Usually valves
Square... Usually valves
![Page 3: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/3.jpg)
Control mechanisms
Electrical 1 winding Electrical control with one winding
Electrical 2 windings Electrical control with two windings, two directions
Electrical 2 windings. Electrical control with two windings, two dir, variable
Electrical with motor Electrical control with motor
Increase hydraulic Direct control by increase of pressure - hydraulic
Increase pneumatic Direct control by increase of pressure - pneumatic
![Page 4: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/4.jpg)
Manual Muscular control - general symbol
Manual - lever Muscular control - lever
Manual - pedal Muscular control - pedal
Manual - push button Muscular control - push button
Mechanical - plung/roller Mechanical control - plunger and roller
Mechanical - plunger Mechanical control - plunger
![Page 5: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/5.jpg)
Mechanical - roller Mechanical control - roller
Mechanical - spring Mechanical control - spring
Pressure Direct control by pressure
Release pneumatic Direct control by release of pressure - pneumatic
![Page 6: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/6.jpg)
Control Valves
Free Non-return - free
Loaded Non-return - loaded
Quick-exhaust Quick-exhaust valve
Shuttle Shuttle valve
![Page 7: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/7.jpg)
Cylinders
Breake Cylinder with breake in one end
Breake. Cylinder with breakes in both ends
Breake.. Cylinder with variable breake in one end
Breake... Cylinder with variable breaks in both ends
Differential Differential cylinder
Double - double piston Double-acting cylinder - double-ended piston
![Page 8: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/8.jpg)
Double - single piston Double-acting cylinder - single-ended piston
Single - return Single-acting cylinder with unspecified return
Single - spring return Single-acting cylinder with spring return
![Page 9: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/9.jpg)
Directional control V
2/2 hydraulic/pneumatic 2/2 hydraulic or pneumatic control valve
2/2 manual 2/2 manual control valve
3/2 hydraulic/pneumatic 3/2 hydraulic or pneumatic control valve
4/2 elektromagnetic 4/2 control valve w. elektromagnetic pilot valve
5/2 pressure 5/2 control valve with pressure control in both directions
Directional One direction
![Page 10: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/10.jpg)
Directional. One closed direction
Directional.. Two directions
Directional... Two directions
Directional..... Two directions and one closed connection
Directional...... Two directions with link
Directional....... One direction and two closed connections
![Page 11: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/11.jpg)
Energy units
Hydraulic Hydraulic source
Pneumatic Pneumatic source
Pressure General symbol
![Page 12: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/12.jpg)
Filters/seperators
Air dryer Air dryer
Filter Filter
Lubricator Lubricator
Seperator Seperator - manually drained
Seperator. Seperator - automatically drained
Seperator.. Filter with seperator - manually drained
![Page 13: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/13.jpg)
Seperator... Filter with seperator - automatically drained
![Page 14: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/14.jpg)
Flow Valves
Flow control Flow-control valve with constant flow
Flow control. Flow-control valve with constant flow, con. to tank
Flow control.. Flow-control valve with adjustable flow
Gate Gate-valve
Restrictor Restrictor valve - simplified symbol
Restrictor. Restrictor valve - manual adjusted
![Page 15: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/15.jpg)
Restrictor.. Restrictor V. - mechanical control by roller, spring-loaded
![Page 16: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/16.jpg)
Functional elements
Hydraulic flow Hydraulic flow
Pneumatic flow Pneumatic flow
Sloping Facility for variability or adjustability
![Page 17: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/17.jpg)
Heat exchangers
Controller Temperature controller
Cooler Cooler
Heater Heater
![Page 18: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/18.jpg)
Measuring instruments
Flow 1219 Flow meter ISO 1219
Flow 3511 Flow meter ISO 3511
Integrating 1219 Integrating flow meter ISO 1219
Integrating 3511 Integrating flow meterr ISO 3511
Manometre 3511 Manometre ISO 3511
Pressure 1219 Pressure gauge ISO 1219
![Page 19: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/19.jpg)
Pressure 3511 Pressure gauge ISO 3511
Temperature 3511 Temperature ISO 3511
Thermometer 1219 Thermometer ISO 1219
Thermometer 3511 Thermometer ISO 3511
![Page 20: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/20.jpg)
Motors
Constant, 1 direction Constant hydraulic motor with one direction of flow
Constant, 2 directions Constant hydraulic motor with two directions of flow
Oscillating hydraulic Oscillating hydraulic motor
Oscillating pneumatic Oscillating pneumatic motor
Pneumatic, 1 direction Pneumatic motor with one direction of flow
Pneumatic, 2 directions Pneumatic motor with two directions of flow
![Page 21: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/21.jpg)
Variable, 1 direction Hydraulic variable motor with one direction of flow
Variable, 2 directions Hydraulic variable motor with two directions of flow
![Page 22: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/22.jpg)
Pressure transformers
Intensifier Pneumatic intensifier
Intensifier. Pneumatic/hydraulic intensifier
![Page 23: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/23.jpg)
Pressure Valves
Basic Valve normally closed in unactivated position
Basic. Valve normally open in unactivated position
Basic.. 2 in and 1 out.Valve normally closed in unactivated position
Differential Differential pressure valve
Pressure control Pressure control valve without relief
Pressure control. Remote pressure control valve without relief
![Page 24: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/24.jpg)
Pressure reducing Pressure reducing valve
Sequence Sequence valve
![Page 25: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/25.jpg)
Pump-motors
Constant Pump-motor w. 1 direction for pump and reverse for motor
Constant. Pump-motor w. 1 direction for pump and motor
Constant.. Pump-motor w. 2 directions for pump and motor
Variabel Pump-motor w. 1 direction for pump and reverse for motor
Variabel. Pump-motor w. 1 direction for pump and motor
Variabel.. Pump-motor w. 2 directions for pump and motor
![Page 26: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/26.jpg)
Pumps
Compressor Airpump with constant displace
Constant, 1 direction Constant hydraulic pump with one direction of flow
Constant, 2 directions Constant hydraulic pump with two directions of flow
Variable, 1 direction Variable hydraulic pump with one direction of flow
Variable, 2 directions Variable hydraulic pump with two directions of flow
![Page 27: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/27.jpg)
Reservoirs
Accumulator Accumulator
Pressure-tank Pressure-tank
Tank Tank with connection to the atmosphere
![Page 28: Hydraulic & Pneumatic Symbols](https://reader035.vdocuments.us/reader035/viewer/2022081715/546991bdb4af9fe4538b4888/html5/thumbnails/28.jpg)
Version
Hydraulic & Pneumatic ISO 1219 Version 1.00.00. Date: 28.05.2001