How the globe valve works

Globe valve, also known as the door stop, is the most widely used valve, it is popular, because the friction between the sealing surface in the process of opening and closing is small, relatively durable, opening height is not large, easy to manufacture, convenient maintenance, not only suitable for low and medium pressure, but also suitable for high pressure.

The closing principle of the globe valve is to rely on the valve bar pressure, so that the valve disc sealing surface and seat sealing surface closely fit, prevent the flow of media. Globe valve

The globe valve only allows one-way flow of media, and has directionality when installed. The structure length of the globe valve is longer than the gate valve, and the fluid resistance is large, and the sealing reliability is not strong in the long-term operation. Illustration of wire stop valve

Working principle and characteristics of 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 sealing pair of the globe valve is composed of a disc sealing surface and a seat sealing surface, and the valve stem drives the disc to move vertically along the center line of the seat. The opening height of the globe valve is small in the opening and closing process, and it is easy to adjust the flow, and it is convenient to manufacture and maintain, and the pressure is applicable to a wide range.

Compared with the other commonly used truncated valves in industrial production, the cut-off valve is simpler than the former in structure, which is easy to manufacture and maintain. From the service life, the sealing surface of the globe valve is not easy to wear and abrasion, the valve opening and closing process between the disc and _ seat sealing surface is not relatively sliding, so the wear and abrasion of the sealing surface is small, so it improves the service life of the sealing pair of the globe valve in the process of full closure of the disc stroke is small, its height is relatively small alarm valve. The disadvantage of globe valve is that the opening and closing moment is large and difficult to achieve fast opening and closing, because the valve body flow channel is more tortuous, fluid flow resistance, resulting in a large loss of fluid power in the pipeline.

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Founded in 1993, after 19 years of development

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