What is a double disc gate valve and what types are there?

What is a double disc gate valve and what types are there ?

For those working in industries that control the flow of liquids, you’ve certainly heard the term ” double disc valve.” This is because it’s a special type of valve designed with two layers and can work more efficiently than a single disc. But what do you need to know about choosing and using a double disc valve or other interesting information? Let’s follow along and read this article.

– What is a double disc valve?

Double disc valve Also known as Double Disc Gate Valve , it is a valve with a structure of two discs working together to increase the efficiency of blocking and controlling the flow of liquid in the pipe system with maximum efficiency.

The advantages of this type of valve are its ability to prevent leakage, resist deformation from friction , and support higher pressures than conventional valves. It is suitable for use in various industries, such as water supply, fire suppression systems, industrial plants, and systems requiring high safety.

– Basic working principle of the 2- layer disc valve

The operation of the double disc valve occurs when air enters from the top, the valve stem pushes the disc downward, closing the valve. When air enters from the pipe below, the valve stem pushes the disc upward, opening the valve. The double disc valve design compensates for thermal expansion and contraction, and also prevents dust from contaminating the gasket surface during operation.

– Characteristics of 2- layer disc valve

Double disc valves are valve devices that have been designed with specific characteristics and more specific applications. The main characteristics of double disc valves are as follows:

• There are 2 disc valves that work simultaneously.
• Helps to seal tightly, reducing leakage.
• Designed to work with both liquids and gases.
• Supports high pressure and high temperature
• Easy maintenance and long service life.

– Type of 2- layer disc valve

Double disc valves are divided into three sub -types based on their application and main design structure as follows:

1. Parallel Double Disc

Double disc valves are two parallel discs that are sealed by pressure on the disc surfaces. They are mostly used in plumbing, drinking water, or fire-fighting systems.

2. Wedge Double Disc Gate Valve

Double Disc Valve This type of valve has both discs placed at an angle, but are tightly closed when the valve is closed. This type of double disc valve is suitable for applications that require high closing force and need to prevent leakage.

3. Pressure Sealed Double Disc

For this type of double- layer disc valve, an additional layer of pressure seal is added. This type is used in very high-pressure systems, such as electrical systems, because it is the disc valve with the highest efficiency in preventing leakage.

– Advantages of choosing a 2- layer disc valve

When choosing a double disc valve , there are many interesting advantages and features, especially in the following areas:

• Reduces leakage rate : With two discs that work together, it creates an automatic seal.
• Supports high pressure and temperature : Suitable for all types of industrial systems and manufacturing plants.
• Easy maintenance : Repairs and maintenance are quick and simple.
• Extended service life : High quality materials with good corrosion resistance.

– Considerations before selecting a 2- layer disc valve

To achieve maximum efficiency, choosing a double disc valve requires understanding and careful consideration of its appropriate use. The following points should be considered:

• Depending on the type of fluid, such as high viscosity, a wedge valve with high closing efficiency may be considered.
• Consider pressure and temperature. Select valves made from materials that can withstand high pressure and temperature according to actual use.
• If it is an industry that requires frequent opening and closing, you should choose a valve that is highly resistant to friction.

– 2- layer disc valve , an efficiency enhancer in industrial applications

Double Disc Gate Valves are another valuable tool for industrial applications that require continuity and maximum efficiency in production and fluid control. However, selection must be appropriate for the pressure system, heat, and type of fluid. Importantly, purchase from a reputable, standardized brand. This will help extend service life and maximize efficiency .

If you are looking for High quality double disc valve from a leading quality brand for the entire industrial sector. agriculture Or general use The Asia Pacific Supply team is happy to provide advice, inquiries and orders. We have over 29 years of experience in importing and distributing valve system equipment, helping you to choose the one that best meets your needs.