Products Details

A manual gate valve is a common type of valve that is primarily used to open or close fluid flow in a pipe. The following are some of the main features and application scenarios of manual gate valves:

Working principle: The working principle of the manual gate valve is to drive the valve stem by rotating the hand wheel or handle, and then lift or drop the gate connected with the valve stem to realize the opening and closing of the valve. The direction of motion of the ram is perpendicular to the direction of the fluid, and can only be fully open or fully closed, and can not be used for throttling regulation.

Structural features:

The gate plate of the manual gate valve moves in a straight line with the valve stem, which is called the lifting lever gate valve (open lever gate valve).
The stem nut of some gate valves is located on the gate plate, which is called the rotating rod gate valve (dark rod gate valve).
The ram is usually made of high quality rubber integral inner and outer rubber to ensure good sealing.
Advantages:

The fluid resistance is small, and the sealing surface is less washed and eroded by the medium.
Less effort to open and close, the medium flow is not limited, does not disturb the flow, does not reduce the pressure.
Simple structure, short length, good manufacturing process, wide range of application.
Cons:

The sealing surface between easy to cause erosion and abrasion, maintenance is more difficult.
The overall size is large, the opening needs a certain space, and the opening and closing time is long.
The structure is more complex.
Installation and use:

Check the valve cavity and sealing surface before installation to ensure that there is no dirt or sand.
Tighten the bolts at the connection part evenly, and press the packing part tightly.
Before installing the valve, the user must check the valve model, connection size and medium flow direction.
Market demand:

The elastic seat seal gate valve uses the elastic gate plate to produce a small amount of elastic deformation compensation to achieve a good sealing effect.
Can be widely used in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, ships, metallurgy, energy systems and other pipelines as regulating and intercepting devices used.
Application field:

Gate valves are widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, shipbuilding, metallurgy, energy systems and other fields, as regulating and intercepting devices used.
Manual gate valves have been widely used in industrial and civil fields because of their simple and reliable operation and good sealing performance.