Types of commonly industrial valves

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Types of commonly industrial valves

Knife gate valve

Knife gate valve – Industrial Valves are a mechanical device used in industrial piping, used to open. Regulate and control the flow of water through pipes. There is some request for the feature of knife gate valve. Together we will discuss this in this article.

Industrial valves are used extensively in many of the most commonly used industries that any of us have ever known: food production, beverage production, animal feed production food & beverage, garment & dyeing, chemical production, water supply, and treatment, etc.

How many industrial valves are common in the market?

Industrial valves have many designs and many different types. Depending on the environment used, the installation location. And the need to use the valve to select the appropriate valve to open or adjust the rate of the interior of the pipe.

Now, on the market, including the most commonly used valves such as:

  1. Ball Valve

Ball valve structure consists of a round ball and a hole through the ball. According to common designs, ball valves are divided into two types: Full bore and Type Reduce bore.

Ball valves

Ball valves are generally recommended for use in fully open or closed positions. They are not suitable for regulating the flow by being partially opened because the ball valve uses a sealing collar between the body and the ball valve. When they are used in partial openings, the pressure will be only partially on the valve sealing. Which causes the valve pad to deform when used for a long time. If it deforms, its ability to seal will no longer and will lead to leakage or shorten the life of the valve.

  1. Butterfly valve

For the design of the butterfly valve, the flow is controlled by a plate of the disc in the center of the valve with a vertical bar. Like ball valves, the opening and closing of the valve are rapid. Because the valve disc rotates a quarter of a turn (90 degrees) to open or close the flow through.

Butterfly valve

The simple, lightweight, and neat design is a common feature of the butterfly valve. Their face size is very small, resulting in lower pressure losses than the ball valve (see below). As the material used for valve discs and sealing pads. Between the body and the valve disc will make the application of different media different. The valve is restricted to high temperature or a certain type of fluid. Butterfly Valves are commonly used in applications such as water or air and are used in large diameter pipes.

  1. Globe valve

Ball valves are widely used, from flow rate control to open-close operation.

For bridge valves, flow rate control is not due to the size of the sealing gasket nor is the lift of the valve disc determined. A good feature of the globe valve is that if the valve is partially opened, the risk of the sealant damaging the sealing gasket or valve plate will be less for other valves. With common industrial valve products, ball valves are the most suitable valve for controlling the flow rate.

One point worth considering in this valve is that the pressure loss in the ball valve will be much larger than the other valves.

Because the design of the flow through the valve is shaped S. And the valve’s operating time, therefore, increases because the design of the ball valve is rotated by 360 degrees and the valve rotates a few turns. Can be closed or open all the way of the valve, with the design of the valve is able to open slowly and proportional flow.

So this valve is commonly used in systems such as Heat, hot oil, hot water,… Because when the system is operating at high pressure, sudden opening and closing of the valve can lead to a pressure shock, which can affect the equipment inside the valve or the front attachment.

  1. Gate Valve

The structure of this valve is similar to the structure of the drain port. Flow is controlled by lifting or dipping of the valve disc.

Like bridge valves, gate valves are not commonly used in regulating flow. One of the reasons is that the valve can be damaged when it is in a partially open position. Similarly, it also limits the total pressure loss when the valve is fully opened. However, placing the valve in a fully open or fully closed position requires the heap to open slowly and rotate 360 degrees and must rotate several times to fully close or open the valve. The gate valve is the valve with the longest running time among the valves mentioned above.

  1. Knife Gate Valve – Ekoval 2500 PN16

Ekoval brand is one of the most prestigious brands in Turkey and is widely known in many countries around the world.

The Ekoval valve series of 2500 series PN16 series are solid-state rotary gate valves, with the main material being steel, stainless steel and cast iron, resistant to adverse environmental impacts (impact, corrosion, Abrasion…).

Some basic features of the Ekoval Knife gate valve:
  • Diameter in connecting pipe DN from 50-600 mm
  • The housing of the valve is made of cast iron GG 25 or GSC 25
  • The valve stem is made of stainless steel
  • The entire valve is painted with protection (covered both inside and outside) with thick Epoxy (250 microns), with typical blue color.
  • Feeding pathways
  • The valve is tight, ensuring no leakage.

The port of the Ekoval 2500series knives offers a great variety of applications: water supply, water treatment, waste water, liquid solutions in the food processing industry, chemical industry, wine production.

There are also has the following Knife gate valve type:
  • Bellow seals globe valves
  • Check valves
  • Safety valves
  • Reducing Valves
  • Control valves
  • Angle seat valves
  • Solenoid valves
  • Plug Valves
  • Y Strainer.