Bright stem protective gate valve

Bright stem protective gate valve is a type of gate valve, whose valve stem thread is exposed outside the valve body, and the opening and closing of the valve is achieved through the lifting and lowering of the valve stem.

structural characteristics

Valve body material: usually made of ductile iron, lightweight, easy to install and maintain. The interior of the valve body is often coated with toxin detection epoxy resin, which has strong corrosion resistance (based on actual reports) and can be used in drinking water and sewage systems.

Gate design: The gate adopts an integral rubber coating design, and the rubber and ductile iron gate are firmly combined, not easy to fall off, and have good elastic memory, which can protect the good sealing effect.

Valve seat design: The bottom adopts the same flat bottom design as the water pipe, which is not easy to cause debris accumulation and ensures smooth and unobstructed fluid flow.

Sealing structure: Generally, a three "O" ring sealing design is used to reduce frictional resistance while achieving zero leakage of the valve.

working principle

Rotate the handwheel or use other driving devices to drive the valve stem upwards, causing the gate to rise and the valve to open, allowing the medium to circulate; When the valve needs to be closed, the driving device drives the valve stem to descend, and the gate is tightly attached to the valve seat, forming a seal and cutting off the medium. Due to the valve stem always being exposed outside the valve body, the opening and closing status of the valve can be determined by observing the position of the valve stem.

Product Features

Easy to observe: The valve stem is exposed, and the opening or closing status of the valve can be intuitively determined by the lifting and lowering of the valve stem, making it convenient for remote monitoring and operation.

Good sealing performance: Adopting elastic seat sealing and multi pass sealing design, the sealing is excellent and can effectively prevent medium leakage.

Low fluid resistance: After the gate is opened, it completely separates from the fluid channel, and the flow channel is linear with low fluid resistance and smooth medium circulation.

Effortless operation: Compared to some other types of valves, the opening and closing of the rising stem protective gate valve is relatively effortless.

Application Industry

Widely used in fluid pipelines in industries such as tap water, sewage, construction, petroleum, chemical, food, textiles, electricity, ships, metallurgy, etc., as regulating and intercepting devices.