An in-depth analysis of Chinese standard forged steel flange gate valves

An in-depth analysis of Chinese standard forged steel flange gate valves

Introduction:

Among numerous industrial pipeline systems, there is a device that plays a crucial role - that is, the national standard forged steel flange gate valve. As a valve type widely used in fields such as petroleum, chemical, and metallurgy, it ensures the safety and efficiency of fluid transportation with its excellent performance and reliable quality. Today, we will unveil the mysterious veil of the national standard forged steel flange gate valve and explore the truth.

1、 What is a national standard forged steel flange gate valve?

The national standard forged steel flange gate valve refers to a flange connected gate valve designed and manufactured in accordance with the Chinese national standard (GB standard), using forged steel as the raw material. This type of valve is usually used to connect or cut off the flow of medium in pipelines, especially suitable for medium pressure and high pressure environments.

2、 Structural characteristics

1. Valve body: The valve body of the national standard forged steel flange gate valve is made through forging process, which makes the valve body have higher mechanical strength and pressure resistance.

2. Valve seat: Typically, replaceable hard alloy or stainless steel materials are used to enhance sealing and durability.

3. Valve stem: The valve stem is designed with trapezoidal threads, ensuring precise control during opening and closing.

4. Drive mode: Manual operation is the most common, but it can also be customized as pneumatic or electric according to actual needs.

5. Sealing form: Depending on different working conditions, soft sealing or hard sealing can be selected.

3、 Working principle

The working principle of the national standard forged steel flange gate valve is relatively intuitive. When the valve needs to be closed, rotate the handwheel or drive device to lower the valve stem, and then push the gate to move downwards until the gate completely blocks the fluid channel, achieving closure; On the contrary, when it is necessary to open the valve, lift the gate to allow the fluid to flow.

4、 Performance advantages

1. Strong corrosion resistance: Due to the use of high-quality forged steel materials, the valve has good chemical corrosion resistance.

2. Wear resistance: The forged steel material and reasonable flow channel design reduce fluid erosion and wear on the valve.

3. Easy maintenance: Due to the design of replaceable structures for key components such as valve seats, it is convenient for daily maintenance and replacement.

4. Long service life: The sturdy structure and high-quality materials ensure the reliability and durability of the valve under harsh working conditions.

5、 Application scope

National standard forged steel flange gate valves are widely used in petroleum, natural gas, chemical, heating systems, and other industrial fields due to their excellent performance. Especially in situations where valve requirements are high, such as controlling high temperature, high pressure, and corrosive media, forged steel flange gate valves can play an important role.

Conclusion:

The national standard forged steel flange gate valve has become an indispensable component of modern industry due to its excellent performance and wide application. Understanding its structure, principles, and advantages can help us better choose and use such valves, thereby ensuring the safe and stable operation of pipeline systems. With the continuous advancement of technology, the performance of forged steel flange gate valves will be superior in the future, and their application fields will also be more extensive.