The ball valve is evolved from the plug valve, it has the same 90 degree rotation lift action. The ball valve can be closed tightly with only a 90-degree rotation and a small torque. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for the medium.

The main feature of the ball valve is its compact structure, easy operation and maintenance, suitable for general working media such as water, solvent, acid and natural gas, and also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral or combined.

The closing part of the ball valve is a sphere, which is a kind of valve in which the sphere rotates around the center line of the valve body to achieve opening and closing. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The ball valve is a new type of valve that has been widely used in recent years. It has many advantages, as follows:

Has the lowest flow resistance (actually 0);
Because it will not get stuck during work (when there is no lubricant), it can be used in corrosive media and low boiling point liquids;
In a larger pressure and temperature range, it can achieve complete sealing;
It can realize fast opening and closing, and the opening and closing time of some structures is only 0.05~0.1s to ensure that it can be used in the automation system of the test bench. When opening and closing the valve quickly, there is no shock in operation;
The spherical closure can be automatically positioned on the boundary position;
When fully open and fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, so the medium passing through the valve at high speed will not cause the erosion of the sealing surface;
With compact structure and light weight, it can be considered as the most reasonable valve structure for cryogenic media systems;
The valve body is symmetrical, especially the welded valve body structure, which can withstand the pressure from the pipeline well;
The closing piece can withstand the high pressure difference when it is closed;

Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.

Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .