Wear-free sealed four-position three-way regulating valve

Abstract

The invention discloses a wear-free sealed four-position three-way regulating valve. The valve comprises a valve shell with a side face provided with a P opening, an A opening with an included angle of 90 degrees with the P opening is formed in the left side of the P opening in the side face of the valve shell, and a B opening with the included angle of 90 degrees with the P opening is formed in the right side of the P opening in the side face of the valve shell; an upper end cover is arranged at an upper end opening of the valve shell, and a lower end cover is arranged at a lower end openingof the valve shell; a circular-truncated-cone-shaped valve element is arranged in the valve shell, and a communicating cavity is formed in the valve element; a first communicating hole is formed in the side face of the valve element, a second communicating hole with the included angle of 90 degrees with the first communicating hole is formed in the left side of the first communicating hole in theside face of the valve element, a third communicating hole with the included angle of 90 degrees with the first communicating hole is formed in the right side of the first communicating hole in the side face of the valve element, and the first communicating hole, the second communicating hole and the third communicating hole communicate with the communicating cavity; and a valve seat face matchedwith the valve element is arranged in the valve shell. The wear-free sealed four-position three-way adjusting valve is simple in structure and long in service life.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a wear-free and sealed four-position three-way regulating valve. Background technique [0002] The control valve is mainly used to cut off, connect and divert the medium. Considering the applicable properties of the control valve and the erosion resistance of the sealing surface, it can also be used for throttling. The control valve is widely used in various industries, such as petrochemical, In the HVAC and medical industries, the three-way regulating valve usually includes a valve casing, a valve core, a valve seat, and a valve stem. The valve stem is connected to the valve core, and the valve core and the valve casing cooperate to form a sealing pair. Drive the spool to rotate together, so that the channel port on the spool is the same as or separated from the channel port on the valve casing to realize the opening or closing action. It produces a lot of wear and has a short s...

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Problems solved by technology

[0002] The control valve is mainly used to cut off, connect and divert the medium. Considering the applicable properties of the control valve and the erosion resistance of the sealing surface, it can also be used for throttling. The control valve is widely used in various industries, such as petrochemical, In the HVAC and medical industries, the three-way regulating valve usually includes a valve casing, a valve core, a valve seat, and a valve stem. The valve stem is connected to the valve core, and the valve core and the valve casing cooperate to form a sealing pair. Drive the spool to rotate together, so that the passage port on the spool is the same as or separated from the passage port on the valve casing to realize the action of opening or closing. A lot of wear and tear is caused, and the service life is short; and the current three-way regulating valve has a single function, and the oil circuit control ability is insufficient

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