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Zhejiang Yingbei Valve Co., Ltd.

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Corporate Spirit

Frugal, humble, upright and honorable, harmonious and enterprising—constantly focused, living a life of refinement.

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2026

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Corporate Mission

We constantly explore and strive to surpass ourselves, all for the sake of offering you better choices.

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2026

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Core Values

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

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2026

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Corporate Vision

Only by solidifying the foundation can we sustain upward momentum and enable Yingbei to become a premium brand in the valve industry.

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2026

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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.

11

2023

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05

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.

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2023

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