Process Flow Diagram Symbols - Equipment Pumps and tanks come in a variety of designs and shapes.

Compressor is a mechanical device that takes in a medium and compresses it to a smaller volume.

A mechanical or electrical drive is typically connected to a pump that is used to compress the

medium.

Pump refers to a mechanical apparatus using suction or pressure to raise or move liquids, compress

gases, or force air into inflatable objects such as tires. The symbols for pumps may closely resemble

those for compressors.

Mixing is a gear that combine some materials or put them together to form one substance or mass.

Mixing vessel is a container that is used to blend several components together.

Heat exchanger is an equipment used to transfer heat energy between two process flows. Heat

exchangers transfer heat energy through conductive and convective heat transfer.

Cooling towers transfer heat energy to the outside air through the principle of evaporation.

Cooler is a device, container or room that cools air through the evaporation of water or keeps cool.

Furnace means a tool for heating a continuous current of air by means of a fire contained within

the apparatus and without mingling the fresh air with the products of combustion.

Boiler is a closed vessel in which water or other fluid is heated.

Tank is used to store process fluids of various types, under different process conditions.

Process Flow Diagram Symbols - Valves

Gate valve is a device used to control the flow of liquids and gases.

Check valve, also known as one-way valve, is to prevent the line of medium back.

Globe valve refers to a mechanism used to control or stop the flow of liquid or gas through a pipe.

Ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it.

Butterfly valve is installed between two flanges using a separate set of bolts for each flange.

Angle valve is oriented at a 90 deg angle of gate valve.

Process Flow Diagram Symbols - Piping Lines Process flow diagrams use special piping lines to represent how signals are transmitted between

equipments. These symbols are used to identify how the instruments in the process connect to each

other. And what type of signal is being used. (electrical, pneumatic, data, etc)

All lines are fine in relation to process piping lines.

Major pipeline is for connection of the equipment in any position.

Major Straight line is sued to connect the equipment in the same horizontal or Vertical position.

Process connection help to create the process flow between equipments. Double click process

connection to edit description.

Process Flow Diagram Symbols - Instruments Process Flow Diagram use symbols and circles to represent each instrument and how they are inter-

connected in the process.

Users can easily change types of the instrumentation symbols by clicking the quick action button

while designing.

With large pre-drawn examples and more than 8500 symbols, drawing couldn't be easier! Click here

to know more about process flow diagram symbols.

Process Flow Diagram Symbols

Pre-drawn process flow diagram symbols represent indicator, odometer,

pressure gauge, thermometer, etc. These symbols help create accurate

diagrams and documentation.

Edraw process flow diagram templates provide you plenty of instrument shapes, indicator,

odometer, pressure gauge, flowmeter, thermometer, shared indicator, temp transmitter, temp

recorder, temp controller, flow indicator, flow transmitter, flow recorder, flow controller, level

indicator, etc.

Process Flow Diagram Symbols - Equipment Process Flow Diagram Shapes

Indicator is a thing that indicates the state or level of something.

Thermomter is an instrument for measuring and indicating temperature.

Flow transmitter is a device used as a means of measuring the flow of a specific substance,

usually liquid, through a series of pipelines or tubing.

Pressure transmitter is used to measure pressure, typically of gases or liquids.

Pressure recorder, as its name implies, is used to record the pressure.

Process Flow Diagram Symbols - Valves

Gate valve is a valve with a sliding part that controls the extent of the aperture.

Globe valve is a linear motion valve and are primarily designed to stop, start and regulate flow.

Needle valve has a slender, tapered point at the end of the valve stem that is lowered through the

seat to restrict or block flow.

Control valve is the valve used to control conditions such as flow, pressure, temperature, liquid

level, etc.

Angle valve is a fluid regulating device that is used in plumbing and industry.

Relief valve (RV) is a type of valve used to control or limit the pressure in a system or vessel.

Bleeder valve works by releasing air, or gas through a valve opening to reduce the built up

pressure inside a tank or remove excess air or gas in a system.

Process Flow Diagram Symbols - Piping and Connection Shapes

Flange is a projecting flat rim, collar, or rib on an object, serving for strengthening or attachment or

(on a wheel) for maintaining position on a rail.

Reducer is the component in a pipeline that reduces the pipe size from a larger to a smaller bore

(inner diameter).

Need fresh looking process flow diagram symbols for your design? These process flow diagram

symbols are a cinch to pop in. And their crisp, fine detail will make spectacular, easy-to-understand

diagrams and presentations to your customers.