Solenoid Control Valve Symbol

Here is a list of symbols for various types of valves used in process industry.

Solenoid control valve symbol. These valves can be used for multiple applications such as switching between two circuits or actuating a hydraulic cylinder. Many types of valves are required in a process plant for flow regulation or on off purpose. Solenoid valves differ in the characteristics of the electric current they use the strength of the magnetic field they generate the mechanism they use to regulate the fluid and the type and characteristics of fluid they control. Understanding ansi iso schematic symbols for fluid power and pneumatic components are used to identify and graphically denote the function and operation of piped control systems.

Pneumatic circuit valve symbols. A solenoid valve is an electromechanically operated valve. 3 2 way solenoid valve symbols. For multi port valves such as 3 way and 4 way the structure of the symbol is similar having a triangle to represent each port or way.

Symbols show the methods of actuation the number of positions the flow paths and the number of ports. Solenoid valve and common pneumatic system symbols. The meaning of the solenoid valve symbols is as below. The symbols below show different circuit functions of 3 2 way valves.

Type of valve employed depends on nature of fluid flow control required operating pressure and temperatures as well as surround atmosphere. When the inlet is blocked in the at rest condition as shown in figure 8 1 it is referred to as normally closed nc. Valve symbols including solenoid valve symbols are those that are in common use. P id symbols for control valve assembly and following actuators manual diaphragm spring type solenoid pilot motor electro hydraulic etc.

This article deals with common solenoid valve and other pneumatic symbols giving a detailed view of pneumatic circuit symbols and their meaning. Here is a brief breakdown of how to read a symbol. The number of positions are decided by the number of boxes. All of the valves represented above are 2 way inline valves that are used for flow control either on off or throttling.

Every box indicates one working position of the solenoid valve namely position. Use the box to indicate the working position of the solenoid valve. 2 way directional control valves a 2 way directional valve has two ports normally called inlet and outlet. Following are schematic symbols for commonly used directional control valves.

Most valve symbols have three parts see.