3 Guides Help You To Know The Knife Gate Valves

With the development of technology, more and more styles of valves are being developed and used in industrial control applications. Valves are used to control flow, control pressure, save energy and increase productivity and are an integral part of the industrial automation pipeline.
One particular type of valve is the knife gate valve. It is mainly used to control the flow of media with high viscosity, solid particles or cellulose and to cut off and intercept the media.

Advantages Of Knife Gate Valves

● Good Shut-Off Capacity

The knife gate valve is designed with a special structure, the valve plate is like a knife, it can cut the high viscosity or particle media well, so that the normal flow of media and production process can be operated.

● Simple Structure And Easy Operation

Knife gate valves have a simple structure and can therefore withstand a small range of pressures and are generally recommended for low pressure pipelines. Due to its simple structure, it is also easy to operate, as the valve can be opened or closed by simply turning the turbine.

● High Applicability

Knife gate valves can be used in all types of media and industries, such as cement, sewage, minerals, feed, etc.

Actuation Options Of Knife Gate Valve

Manual Actuation

By turning the turbine, the valve plate is driven in an upward or downward motion to open or close the valve. Low cost and easy to handle.

● Electric Actuation

The valve is opened or closed by an electric actuator after being energised. This saves labour costs and increases productivity.

● Pneumatic Actuation

By using gas to drive the actuator open or closed, the knife gate valve is opened or closed. Non-polluting, explosion-proof, reduces emissions and pollution in industrial processes, enabling sustainable development and environmentally friendly production.

Applications Of Knife Gate Valve

● Paper And Pulp Industry

The paper industry will have media such as wood pulp and waste pulp. If a ball valve or butterfly valve is used it will cause the valve to clog, so using a knife gate valve will be more appropriate.

● Sewage Industry

The sewage industry will contain a large amount of sludge and corrosive media. Knife gate valves are available in stainless steel or duplex steel, which have good corrosion resistance and are therefore suitable for use in the sewage industry.

● Food And Beverage Industry

Food and beverage processes can produce substances containing particles or high viscosity. Knife gate valves are perfect for cutting off and intercepting flow without clogging, ensuring that the project is processed properly.

Hope this article could help you know the knife gate valve for your and how to select the right valve for your applications. Any questions, feel free to consult us at sales@covnaactuator.com

Tips For Selecting The Valve For Integrated Water Treatment System

An integrated water treatment system is a combination of several different water treatment technologies and equipment to form an integrated system for water purification, disinfection, treatment and reuse. Such systems typically consist of multiple units, each optimally designed and installed for specific water treatment needs and processes.

Integrated water treatment systems typically consist of a variety of equipment and technologies, such as filters, activated carbon adsorbers, reverse osmosis membranes, UV disinfectors, ion exchangers, ozone generators, etc. These equipment and technologies can be combined and optimized according to different water treatment needs to achieve the best treatment effect and economic efficiency. And valves and pipes can connect these devices one by one to make the whole integrated water treatment system run more smoothly and achieve the effect of water purification.

Integrated water treatment system can be applied to a variety of different occasions, such as municipal water supply, industrial water, agricultural irrigation, sewage treatment, etc.. In municipal water supply, integrated water treatment systems can be used to purify groundwater and surface water to eliminate harmful substances in the water, and also to realize the use of recycled water. In industrial water supply, integrated water treatment systems can be used to treat various wastewater and sewage to meet environmental standards and process requirements.

Types of valves that can be used in integrated water treatment systems

As mentioned earlier, valves are an important industrial accessory used to connect various types of equipment together, so integrated water treatment systems often require the use of different types of valves to control water flow and pressure in order to achieve different water treatment processes. Below is a description of some of the commonly used valve types.

● Butterfly Valves

Butterfly valves have a valve plate that is centered on an axis and rotates within the valve body to control the flow of fluid, allowing for quick cut-off or regulation of flow in the pipeline. It is commonly used in high flow and low pressure differential situations, such as for controlling the flow of liquids or gases, and for regulating and intercepting flow.

● Ball Valves

By turning a handle or operating a handwheel, the ball can be rotated to control the flow of fluid. Ball valves are often used to control flow because they can be opened and closed quickly and are suitable for high temperature and high pressure applications.

● Globe Valves

Usually used to shut off or control the flow of water, such as when a globe valve is installed in a pipeline to isolate a section for maintenance. A globe valve has a good seal and is faster to close and open. It is suitable for medium temperature and pressure media.

● Pressure Reducing Valves

Usually used to control and stabilize water pressure to prevent excessive pressure from causing damage to piping and equipment.

● Safety Valves

Usually used to protect equipment and piping from excessive pressure and temperature to prevent dangerous accidents.

● Filters

Used to remove impurities and particles from water to prevent contamination and damage to equipment. To protect the normal operation of industrial equipment such as pipelines, pumps, and valves.

The above valves can be used individually or combined together to form a complete integrated water treatment system to meet different water treatment needs. If you have any needs for valves, please feel free to contact us for more information. sales@covnaactuator.com

Tips For Selecting Valves For Pumping Stations

A pumping station is a facility that is used to pump liquids, gases, or sludge from one location to another. It is typically comprised of one or more pumps, control systems, and associated piping and valves. The purpose of a pumping station is to transfer fluids, such as water, sewage, oil, or chemicals, from one location to another, or to provide the necessary pressure to move the fluid through a pipeline or network.

Pumping stations are widely used in various industries, including water treatment, sewage treatment, oil and gas, chemical, and power generation, to name a few. They play a crucial role in the movement of fluids and are designed to operate reliably and efficiently to ensure the smooth operation of the system.

Why Valve Is Important In Pumping Stations?

Valves play a crucial role in pumping stations by regulating the flow of fluid in the piping system. Some of the key applications of valves in pumping stations include below 3 points:

Control, Regulation And Isolation Of Fluid Flow

Valves are used to control the flow of fluid into and out of the pumps, ensuring that the pumps are not over-loaded or under-loaded.

Pressure Regulation

Valves are used to maintain a constant pressure in the pumping system, which is important for the proper functioning of the pumps and other equipment in the system.

Keep Project Safety

Valves are used as safety devices in pumping stations, automatically shutting off the flow of fluid in case of emergency to prevent damage to the pumps or other equipment in the system.

In summary, valves play a crucial role in ensuring the safe and efficient operation of pumping stations by controlling the flow, pressure, and direction of fluid in the system.

What Valves Will Be Used In Pumping Stations?

The design of a pumping station varies based on the fluid being pumped, the desired flow rate, and the specific requirements of the application. The pumping station may include additional components, such as tanks, valves, and control systems, to ensure safe and efficient operation. Pumping stations typically use a variety of valves to regulate the flow of liquids and gases through the system.

There are 6 commonly used valves in pumping stations.

Butterfly valves

These valves are used for controlling the flow of liquids and gases, and are typically installed in large-diameter pipelines. Turning the lever or handwheel to open/close the valve to shut off the fluid.

● Ball valves

Ball valves are commonly used for isolating the pump and controlling the flow rate, as they offer a tight seal and can be easily opened and closed. The same operation method with butterfly valves. Easy to install and use.

● Gate valves

Gate valves are used for isolation and control, and are commonly installed in discharge lines.

● Control valves

Control valves are used to regulate the flow of fluids in the system such as flow rate and pressure, and are typically installed in the suction and discharge lines.

All three valves can be used with electric and pneumatic actuators to automate fluids and improve fluid process efficiency.

● Check valves(Non-return Valves)

Check valves are used to prevent backflow and are commonly installed in discharge lines to prevent water hammer. Opening by the fluid pressure. It is a effective valve to keep project safety.

● Relief valves

Relief valves are used to protect the pump and the system from overpressure and are typically installed in discharge lines. As well as a valve that protects pipeline safety.

These valves play a crucial role in ensuring the efficient operation and safety of pumping stations, and the type of valves used will depend on the specific requirements of each pumping station.

Here is the brief introduction of selecting valves for pumping stations and hope it is helpful for you to select the suitable valve to solve your fluid solution. Anything we could help feel free to consult us at sales@covnaactuator.com

The Comprehensive Guide to Selecting the Right Water Treatment Valves for Your Application

What is a Water Treatment Valve and How Does it Work?

A water treatment valve is a device used to regulate the flow of water in a water treatment system. The valve works by controlling the rate of flow of water, either allowing or restricting it. This can be done by opening or closing the valve, or by adjusting the size of the opening. The valve can also be used to divert water to different parts of the system, such as filtration units, or to turn off certain parts of the system when they are not in use.

Water treatment valves are divided into manual type and automatic type. Manual water treatment valves are opened or closed by manually turning the handle. The advantage is that the cost is low, and it can be used in water treatment system pipes that need to be opened for a long time.
The automatic water treatment valve is driven by electricity or air source, and can be adjusted to open or close according to the signal of the control system. The advantage is to realize automatic control, which can be used in the central control area, which is convenient for observing the operation of the system and improving the process efficiency of the water treatment process

Types of Water Treatment Valves and Their Advantages

● Butterfly Valves: Butterfly valves are used to control the flow of water by using a circular disc that rotates in order to open and close it. They are durable, efficient and small volume, making them ideal for normal pressure applications. They can also be used to regulate the flow rate of water by your needs.

● Ball Valves: Ball valves are quarter-turn valves that control the flow of water by turning a spherical disc with holes. They come in a variety of link styles to match assortment piping and are built to last. The size is however restrictive, otherwise the cost would be high. Therefore, it is suitable for small pipes for the regulation of water flow.

● Gate valve: The gate valve is a linear valve. By rotating the turbine, the valve stem moves up and down to complete the opening or closing of the valve, so that the water can flow or be cut off. Due to structural problems, the gate valve does not have a regulating function.

● Globe valve: Globe valve is also a linear valve. The switch mode is the same as that of the gate valve. The globe valve has the functions of regulation, flow and cut-off.

The above 4 types of valves can be used with electric actuators or pneumatic actuators to achieve the purpose of fluid automation.

● Check Valves: Check valves are used to allow water to flow in one direction only and prevent it from flowing back. They are designed to open and close automatically, depending on the pressure of the water. Advantages of check valves include their low cost, low maintenance requirements and their ability to prevent backflow and contamination.

The Benefits of Investing in Quality Water Treatment Valves

Investing in quality water treatment valves can provide many benefits for both residential and commercial properties. Quality water valves can help to improve the overall quality of the water that is being used, which can be extremely beneficial for health and safety reasons. They can also help to reduce the amount of water wasted by providing more efficient water flow and reducing the amount of backflow that occurs in pipes and drains. Furthermore, investing in quality water treatment valves can save money in the long run by providing better control over water pressure, temperature, and other important factors.

What are the Best Practices for Choosing the Right Water Treatment Valve?

● Consider the specific application and desired water flow rate

● Consider the design of the complete water treatment system and the compatibility of the control system

● Consider the valve and piping match. Such as pipe pressure, material, size, etc

● Consider the cost

How Do You Maintain & Repair Your Water Treatment Valve?

● Inspect the valve and its components regularly for any signs of damage or wear.

● Make sure all moving parts are lubricated with light oil or grease as needed.

● Replace any worn or broken components as soon as possible to keep the valve functioning properly.

● Check that all gaskets and seals are intact and in good condition. Replace any that are damaged or worn.

● Clean the valve, its components, and the surrounding area regularly to keep it free of debris and contaminants that can interfere with its operation.

The above is a comprehensive guide to selecting the right valve for water treatment. We hope it will help you in the design of your water treatment system. Make the right choice of a water treatment valve for your business today! sales@covnaactuator.com