알아야 할 6가지 유량 제어 밸브 유형

There are numerous flow control valve types, including 체크 밸브, 게이트 밸브, 버터플라이 밸브, pinch valves, diaphragm valves, 그리고 ball valves. 

However, picking the improper flow control valve from the numerous options available can be intimidating. 

Our experience as a top manufacturer can help you better comprehend the six flow control valve types  listed above.

So, read on to learn more and assess if they match your needs.

6 Flow Control Valve Types

1. 볼 밸브

작업

This is among the flow control valve types that use a ball with a central hole.

The ball rotates 90 degrees to align the hole with the flow route, allowing the medium to pass through.

Letting the ball’s solid part to face the path enables it to block the passage, making it simple to use for both on and off applications.

Some Applications

These flow control valve types are usually used in high-pressure systems that require immediate shut-off capabilities, like the automotive industry 그리고 HVAC systems.

This Flow Control Valve Types Advantages and Disadvantages 

2. 게이트 밸브

작업

They’re shut-off devices that control the flow of liquids or gases through sliding the vertical disc up or down.

It allows the medium to pass through with little resistance, resulting in minimal pressure loss and blockage.

If it is manual, you must typically rotate the handwheel or actuator more than 360 degrees clockwise before the stem attached to the disc lowers towards the seat.  

This completely blocks the flow path and ensures tight sealing. 

Turning it counterclockwise for an entire 360 degrees raises the disk, allowing the medium to flow through.

Some Applications

Often used for low-pressure applications that do not really require precise flow control, such as water delivery systems. 

This Flow Control Valve Types Advantages and Disadvantages 

3. Pinch Valves

작업

They use a flexible tube, which is squeezed shut to block the flow channel until it can be released again.

The pinching mechanism used to push the two sides of the tube together can be pneumatic, mechanical, or hydraulic.

Hydraulic fluid can be used for hydraulic check valves, whereas pneumatic types use compressed air. 

While a pinch bar is utilized if it’s mechanical and controlled by a handwheel or screw mechanism.

Here is a YouTube video to assist you in better understanding how they work.

This Flow Control Valve Types Advantages and Disadvantages 

These flow control valve types can effectively handle slurries 또는 abrasive materials, making them ideal for industries that require minimal contamination, like wastewater treatment plants.

However, they have limited durability due to flexible tube material susceptibility to wear.

4. 체크 밸브

작업

Among the flow control valve types, this is also referred to as non-return 또는 one-way valves because it allows fluids or gases to flow in just one direction.

They open when the force or cracking pressure from the upstream is sufficient to elevate the disc inside the valve, allowing media to pass through. 

If the pressure drops or the flow turns around, the disc closes itself to avoid backflow. 

Here’s a YouTube video showing how they function.

Some Applications

These flow control valve types are suitable for water pipelines, heating systems, and industrial operations such as petroleum 그리고 chemicals. 

This Flow Control Valve Types Advantages and Disadvantages 

5. 버터플라이 밸브

작업

It features a vertical disc that spins at 90 degrees to either stop or allow fluid to flow through, making it simple to open and close. 

The actuators connected to the disc can be controlled manually, electronically, or pneumatically. 

Some Applications

화학적인 또는 agricultural industries with low to medium pressures 그리고 temperatures, as well as applications requiring clean fluids like water distribution systems.

This Flow Control Valve Types Advantages and Disadvantages 

6. 다이어프램 밸브

작업

Also one of the flow control valve types uses a flexible item either to block or let the medium flow through it.

A stud is connected to a flexible diaphragm, which attaches to the plunger and stem, causing it to close or open the valve.

If it’s manual, you must turn the handwheel counterclockwise slowly to raise the diaphragm and clockwise to lower it.

Some Applications

They are also ideal for mild temperature 그리고 pressure settings and are commonly used in industries that deal with corrosive mediums, such as chemical 또는 pharmaceutical manufacture.

This Flow Control Valve Types Advantages and Disadvantages 

Control Valve Types’ Certifications: What standards are used for valves? 

Flow control valve types had to follow several standards to be deemed reliable and safe for use in a specific industry or application.

Here are some of them to watch out for when purchasing a flow control valve:

Source:

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