What Is The Classification Of Brass Ball Valves?

The products of each industry will be classified according to the function and material used, as is the valve industry. Today's editor mainly explains how ball valves are classified. The ball valves are divided into: floating ball valves, fixed ball valves, orbit ball valves, V-type ball valves, three-way ball valves, stainless steel ball valves, cast steel ball valves, forged steel ball valves, ash unloading ball valves, anti-sulfur ball valves, pneumatic ball valves, electric ball valves, card sleeves Ball valves, welded ball valves.

According to the shell / body material classification, ball valves can be divided into: ball valves

1. Metal valve: such as carbon steel valve, alloy steel valve, stainless steel valve, cast iron valve, titanium alloy valve, Monel valve, copper alloy valve, aluminum alloy valve, lead alloy valve, etc.

2. Metal body lined valves: such as rubber-lined valves, fluorine-lined valves, lead-lined valves, plastic-lined valves, enamel-lined valves.

3. Non-metallic valve: such as ceramic valve, glass valve, plastic valve.

There are many domestic manufacturers of ball valves, and most of the connection sizes are not uniform. Mainly divided into the following categories:

The ball of the ball valve is floating. Under the action of the medium pressure, the ball can produce a certain displacement and be pressed tightly on the sealing surface of the outlet end to ensure the sealing of the outlet end.

Make a structural distinction:

The sealing is good, but the load of the sphere under the working medium is all transferred to the outlet seal ring, so it is necessary to consider whether the material of the seal ring can withstand the working load of the sphere medium. The sphere may shift when subjected to high pressure impact . This structure is generally used for low and medium pressure ball valves.

The ball of the ball valve is fixed and does not move after being pressed. Fixed ball ball valves are equipped with floating seats. After receiving the pressure of the medium, the seats move, so that the sealing ring is pressed tightly on the ball to ensure the seal. Usually, bearings are installed on the upper and lower shafts of the sphere, the operation torque is small, and it is suitable for high pressure and large diameter valves.

In order to reduce the operating torque of the ball valve and increase the reliability of the seal, an oil-sealed ball valve has appeared, which not only injects special lubricating oil between the sealing surfaces to form a layer of oil film, which enhances the sealing performance and reduces the operating torque. Suitable for high-pressure large-diameter ball valves.