Who is the supplier of gate valves in China?

When the gate valve is closed, its sealing surface relies on the medium pressure to seal. This means the pressure from the medium forces the gate's sealing surface against the valve seat, ensuring the surface is sealed. Most gate valves, however, employ forced sealing, where an external force presses the gate tightly against the seat to guarantee the seal. The gate valve operates in a linear motion with the valve stem, known as a lifting stem gate valve or rising stem gate valve. Typically, a trapezoidal thread on the lifting rod converts rotary motion into linear motion by interacting with the nut at the top of the valve, changing operating torque into thrust.

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When the valve is fully opened and the gate's rising height equals 1:1 times the valve diameter, the fluid passage is completely clear. However, this precise position cannot be monitored during operation. Instead, the valve stem's position acts as a marker. To account for temperature changes and avoid lock-up appearance, the valve is usually adjusted back 1/2~1 turn from the extreme open position. Therefore, the fully open position of a valve is determined by the gate's position, i.e., its stroke.

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ZHEJIANG LIANGYI VALVE CO.,LTD (LYV®) stands as a professional manufacturer and supplier of gate valves in China. With an extensive facility spanning over 14,000 square meters and a dedicated team of over 100 employees, LYV® has committed itself to delivering top-quality products and services to meet customer needs. As a result, LYV® has established its prominence in the gate valve industry.

Gate valves function as liner-motion valves using a typically flat closure element perpendicular to the process flow, sliding into the flow to provide shut-off. These valves offer on-off functions for liquid and gas services by connecting to pipelines. They are designed to be either fully opened or fully closed and are not meant for adjustment or throttling. Control is achieved by lifting and lowering the gate, making these valves ideal for pipelines with a consistent flow size and infrequent open/close cycles, such as cold and hot water pipeline systems with large flow bores.

LYV's factory is certified under ISO 9001:2000 international quality standards and has also obtained Chinese TS, API 6D, and CE certifications. The company has exported numerous gate valves to regions including the USA, Europe, South America, South Asia, the Middle East, and Africa. LYV® continuously seeks to collaborate with customers worldwide, creating more value together.

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