Normally, valves and actuators have 3 main purpose: Cut and release, flow control and reverse shunting. Different valves have different purposes. In this article, we will show you the purpose of valve for you and if you have any demands or any opinion, please contact us at sales@covnavalve.com
1. Cut And Release Media
The first purpose of the valve is cut-off the medium. When the valve is opened, the medium is transported. When the valve is closed, and the medium is cut off. Ball valves, butterfly valves and gate valves can all play a cut-off role. Ball valves and butterfly valves are both 90-degree rotary switch to cut-off the medium. While gate valves are full opened or closed to cut-off the medium.
So you could choose ball valve, butterfly valve and gate valve to be your cut-off valve for your project. In the meanwhile, you could equipped with electric actuator and pneumatic actuator to allow your automation easier.
2. Control Traffic
In addition to being used for cut-off, the valve can also play a role in controlling flow.
We would recommend the use of diaphragm valves, globe valves and control valves to control the flow for your project. They can adjust the media flow according to your flow requirements, making your project more efficient and more accurate.
By the way, you could select the electric actuation or pneumatic actuation for your project which would allow your project to run more smoothly and easier.
3. Reverse Shunting
We recommend that you use a 3-port ball valve as a diverter valve for the pipeline. You can choose L port or T port to split or merge your pipelines according to your needs.
At the same time, you can also choose electric, pneumatic or manual drive according to your own budget or engineering design.
In a summary, you could select the ball valve, butterfly valve, globe valve, gate valve and control valve basic on your need. Each valve has their own advantages and function.
Anything we could help to select the valve, please do not hesitate to contact us at [email protected]
In addition, the installation of valves should also be standardized to reduce the valve failure rate. Otherwise, it will affect the operation of the entire system. Below we introduce the installation requirements of the valve at 3 points.
1. Follow Valve Installation Instructions To Install
Strictly according to the valve installation instructions for installation, stem gate valve left enough stem elongation open height, butterfly valve fully consider the handle rotation space, all kinds of valve stem can not be lower than the horizontal position, not down. Concealed valve not only to set up to meet the valve opening and closing needs of the inspection door, at the same time the valve stem should be toward the inspection door.
2. Select Valve Type And Installation According To Piping System
Familiar with the application of various types of valves, according to the design requirements of the choice of valve specifications and models. Nominal pressure of the valve to meet the system test pressure requirements. According to the construction specifications: The diameter of water supply branch pipe is less than or equal to 50mm should use a stop valve; when the diameter is more than 50mm should use a gate valve. Hot Water Heating Dry, vertical control valve should be used gate valve, fire pump suction pipe should not be used butterfly valve.
3. Perform Quality Inspection Prior To Valve Installation
Before installing the valve, the pressure strength and tightness test should be done. Tests shall be carried out at a random rate of 10% per lot and not less than one.
The closed-circuit valves installed on the main pipe to cut off should be tested for strength and tightness one by one. Valve strength and tightness test pressure should meet the requirements.
Finding The Right Valve For Your Applications
We offer ball valve, buttefly valve, gate valve, globe valve and control valve for your project. ISO5211 mounting for electric actuator and pneumatic actuator.
If you need valves and actuators, please do not hesitate to contact us at [email protected]
Post time: Jul-28-2021