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Ball Valve Classification Characteristics And Structure

Jun 09, 2017

   Ball valves are: floating ball valve, fixed ball valve, ball valve, V ball valve, three ball valve, stainless steel ball valve, cast steel ball valve, forged steel ball valve, ash ball valve, anti-sulfur ball valve, pneumatic ball valve, electric ball valve Ball valve, solder ball valve.Ball Valve

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

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

2. Metal body lining valve: such as rubber lined valve, lining fluorine valve, lining the lead valve, lining plastic valve, lining enamel valve.Ball Valve

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

    The domestic production of ball valve manufacturers are more, most of the connection size is not uniform. Mainly divided into the following categories:

Ball of the ball is floating, under the action of the medium pressure, the ball can produce a certain displacement and pressed on the outlet side of the sealing surface to ensure that the export side of the seal. Good sealing, but the ball to bear the working medium of the load all passed to the export seal, so consider whether the sealing ring material can withstand the working load of the ball media, in the high pressure impact, the ball may be offset The This structure, generally used in low pressure ball valve.Ball Valve

    Ball of the ball is fixed, after the pressure does not produce movement. Fixed ball valve with a floating seat, by the media pressure, the valve seat movement, so that the seal on the ball to ensure that the seal. Usually with the ball on the lower shaft with bearings, operating torque is small, 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, there have been oil seal ball valve, both in the sealing surface between the injection of special lubricants to form a layer of oil film, which enhances the sealing, but also reduces the operating torque, Applicable high pressure large diameter ball valve.Ball Valve