Valves are generally those machines in regulating fluid flow rate, pressure and flow direction of devices, such as: cut-off valve, valve and relief valve, etc.
Valve to control the definition of liquid through to decrease the pressure or change its flow rate and the flow direction of device.Today we are the most main speak with brass

ball valve under ball valve.

ball valve is evolved by plug valves. It has the same rotates 90 degrees mention movement, the different is cocks body is the

sphere, circular through-hole or channels through its axis. Spherical and blocking ratio should be such, namely when the ball rotates 90 degrees, in the inlet and outlet shall

all be present sphere, thus truncation flow. Ball valves only use rotate it 90 degrees of operation and small rotational torque can shuts rigor. Fully equal body cavity as

medium provides very little resistance, straight-through flow channel. Usually think ball valves open and close the most suitable directly use, but recent development has will

ball valve designed to make it has throttling and control flow with.

ball valve main characteristic is itself compact structure, easy for operation and maintenance, suitable for water,

solvents, acid and natural gas general working medium, and also applies to working conditions of medium, such as oxygen and hydrogen peroxide, methane and ethane, etc. Ball

valve body can be whole, also can be combined. Ball valve is mainly used to do on lines cut, distribution and change flow direction of medium. Ball valve is widely used in

recent years is a new type of valve, fluid resistance small, the resistance coefficient and the same length of pipe are equal.

According to the categories of speaking, the ball valve is to belong to machinery products.
The valve will tell, classification also has a few kinds of methods. E.g. by automatic and drive classification, copper ball valve can be driven valve, According to the purposes

and functions classification, bronze ball valves belong to block valves or the purge valve class. According to the body material classification, this is metal valve, According

to the control classification can be a cock and spherical.

brass ball valve has been widely used in petroleum, chemical, power generation, the papermaking, the atomic

energy, aviation, rockets departments, and People's Daily life. Ball valves in irrigation system is often applied, basically use in tubes inlet. Ball valve simple structure,

small volume, the flow resistance is small, defect is opening or closing fast, can be in pipeline middle water hammer (pipe flow velocity in the pressure when suddenly changes

will rise). So in ZhuGanGuan on unfavorable use ball valve, usable in in dry and tubes or its end be blunt washing with, washing drainage effect is good.

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