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Release time:

2026-01-07

Responsibility, dedication, pragmatism, accountability, and efficiency—creating value for customers and realizing self-worth.

Responsibility, dedication, pragmatism, accountability, and efficiency—creating value for customers and realizing self-worth.

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The slurry valve manufacturer introduces to you the stainless steel knife gate valve and the pneumatic knife-type gate valve.

The vast majority of stainless steel knife gate valves employ forced sealing: that is, when the valve is closed, an external force is applied to forcibly press the gate against the high-pressure valve seat, thereby ensuring a tight seal on the sealing surfaces. Some gates can also be designed to undergo slight deformation, which helps improve their manufacturability and compensate for any misalignment in the sealing surface angles that may occur during the manufacturing process. Such gates are referred to as flexible gates. The majority of knife gate valves rely on forced sealing—meaning that when the valve is closed, an external force is used to press the gate firmly against the high-pressure valve seat, thus guaranteeing a secure seal on the sealing surfaces. Valves of this type are generally installed horizontally in pipelines.

2023-05-11

Next, let’s talk about several operating procedures for knife gate valves.

When a gate valve is closed, the sealing surfaces rely solely on the pressure of the medium to achieve a seal—specifically, the sealing surface of the gate is pressed against the valve seat on the opposite side by the medium’s pressure, thereby ensuring a tight seal. This type of sealing is known as self-sealing. In contrast, most gate valves employ forced sealing: when the valve is closed, an external force must be applied to press the gate against the valve seat in order to guarantee the sealing performance of the sealing surfaces. Such valves should be installed vertically in the pipeline.

2023-05-11

Next, let’s talk about whether knife gate valves have fire-resistant and anti-static requirements.

When an electrostatic knife gate valve is opened or closed, the sphere and the valve seat experience mutual friction. The static electricity generated by this friction tends to accumulate on the sphere—something that is unacceptable for ball valves used in gas, fuel, and chemical pipelines, as it could potentially lead to pipeline explosions. Ball valves with antistatic designs are equipped with static discharge devices.

2023-05-11

Next, let’s talk about some important considerations for the installation, operation, and maintenance of pneumatic knife gate valves.

Pneumatic knife gate valves have a wide range of applications, spanning from ordinary fields to more diverse industries—from coal preparation, gangue removal, and slag discharge in coal-fired power plants to urban wastewater treatment; from general industrial pipelines to pipeline systems used in food, sanitation, and pharmaceutical industries. So, what are the key considerations when installing, using, and maintaining pneumatic knife gate valves?

2023-05-11

Slurry Valve Manufacturer: How are stainless steel knife gate valves good?

Slurry valve manufacturer: How to improve the compliance rate and productivity of stainless steel gate valves and prevent a large number of maintenance tasks—this is Skafu Valve’s top priority. The stainless steel gate plate effectively prevents sealing leaks caused by corrosion. The stainless steel gate plate effectively prevents sealing leaks caused by corrosion. Features: This valve boasts advantages such as simple and compact structure, reasonable design, lightweight and material-saving, reliable sealing, easy and flexible operation, small size, smooth flow passage, low fluid density, light weight, ease of installation, and ease of disassembly.

2023-02-02

What are the uses of a stainless steel knife gate valve?

The stainless steel knife gate valve is one type among many gate valves. Compared with conventional gate valve products, it has several distinctive features. For instance, its structure is simpler and its dimensions are smaller. It’s also very easy to install. Additionally, it boasts flexible operation and quick opening and closing. So, which media are suitable for stainless steel knife gate valves? Let’s take a closer look below.

2023-01-04

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