Valves used in industrial piping systems are known as valves. Valves are one of the key elements in the piping network of various industries. Therefore, piping engineers have a special look at the design of the most suitable type of valve according to their intended use. In this article, we will introduce the applications, components, advantages and disadvantages of all types of valves. At the end, we provide guide tables for choosing valves suitable for different uses.
What is Valve?
Industrial valves or “valves” are equipment used to stop, start and regulate flow in piping systems.
The most important features of valves include opening and closing the flow path (like a switch), increasing and decreasing the flow rate (regulating the flow rate), adjusting pressure, adjusting temperature, separating one part of the system from other parts (isolation), protecting the system. In critical situations, he pointed to turning the path one-way and reversing the direction of the flow.
What are the types of valves?
The classification of valve types is based on various criteria such as valve performance in the system, the movement mechanism of the blocking element, the energy source of the actuator, connections and the type of blocking element. According to these criteria, the types of valves are:
Types of valves based on the movement mechanism of the flow blocking element
Linear valve
with the rotary operator
with the axial operator
Rotary valve
With a quarter turn or 90 degrees
With more or less rotation of 90 degrees
Types of valves based on performance in the system
Isolation valve or isolation valve
Control valve or regulating valve
Safety valve or safety valve
No return valve
Valve with special function
Types of valves based on the type of connections
Threaded valve or screw valve
Flanged valve
boiling valve
silent valve
Wafer valve and log valve
Types of valves based on the mechanism of the operator
hand valve
The valve has a power supply
automatic valve
Types of valves based on the type of blocking element
sliding valve
ball valve
plug valve
piston valve
diaphragm valve
Butterfly valve
throat milk
Spherical valve
needle valve
Pressure relief valve
One-way valve
