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Taizhou Hongchuang Automation Equipment Co.,Ltd

Address:Port City Of Shamen Town, Yuhuan County, Taizhou City, Zhejiang Province, China

Contact:Amy Hou

Mobile:+8618906570891 

E-mail:amy@brass-valve-machine.com

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Cut-off valve
May 28, 2018

Cut-off valve, also called door and valve is one of the most widely used, it is popular, is due to open and close in the process of friction surface, more durable, opening, manufacturing easy, convenient maintenance, not only suitable for low voltage, and is suitable for high pressure.

The closing principle of the globe valve is to close the disc sealing surface with the valve seat sealing surface by means of the pressure of the stem to prevent the flow of media.

Valve plays an cut off in its line in the medium and the important role of throttle, cut-off valve, as a kind of extremely important truncated class valves, which exert torque on the valve stem seal, valve stem in axial direction to the pressure on the disc, the valve sealing surface and the valve seat sealing surface fit closely, prevent leakage of medium along the gaps between the sealing surface.

An overview of the

[(stop valve, cut-off valve, Globe valve) of the opening and closing is plug valve, sealing surfaces appear flat or cone, disc along the seat of the center line of linear motion. The movement of the valve stem form, (generic name: non-rising stem), also have lift rotating bar type, (generic name:

Rising stem) cut-off valve is closed (disc) along the valve seat centerline mobile. According to the mobile form of disc, seat and disc change in his itinerary proportional relationship. Due to open or close the valve stem travel relatively short, and very reliable cutting function, and due to the change of his seat and disc stroke proportional relationship, is very suitable for the traffic regulation. Therefore, this type of valve valve closure is very suitable for as a cut or adjust and throttling.

Principle and characteristics of folding globe valve

Valve plays an cut off in its line in the medium and the important role of throttle, cut-off valve, as a kind of extremely important truncated class valves, which exert torque on the valve stem seal, valve stem in axial direction to the pressure on the disc, the valve sealing surface and the valve seat sealing surface fit closely, prevent leakage of medium along the gaps between the sealing surface.

The closing valve seal consists of the disc seal and seat seal, and the stem drives the disc vertically along the center line of the seat.

The opening height of the globe valve is small in the process of opening and closing, and it is easy to adjust the flow rate.

Compared with another commonly used cut-off valve in industrial production, the cut-off valve is simpler in structure and easier to manufacture and maintain.

In service life, cut-off valve sealing surface is not easy to wear and scratches, in the process of opening and closing the valve disc with no relative sliding between _ seat sealing surface, thus less wear and scratches on the sealing surface, so to improve the service life of the seal globe valves in the process of the full close disc stroke is small, its high alarm valve is relatively less.

The disadvantage of the globe valve is that it has a large opening and closing moment and is difficult to realize rapid opening and closing. As the flow passage in the valve body is tortuous and the flow resistance is large, the hydrodynamic loss in the pipeline is large.


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    Taizhou Hongchuang Automation Equipment Co.,Ltd

    Address:Port City Of Shamen Town, Yuhuan County, Taizhou City, Zhejiang Province, China

    Contact:Amy Hou

    Mobile:+8618906570891 

    E-mail:amy@brass-valve-machine.com

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