Working principle diagram of solar container cut-off valve

What is the closing principle of a cut-off valve?

The closing principle of the cut-off valve is to rely on the pressure of the valve to make the valve seal face close to the seat sealing surface and prevent the media from circulating. China's valve "three to" has stipulated that the cut-off valve flow, all used Top-down, so the installation has directional.

How do you determine the sealing forces in a shut-off valve?

[...] The developed method for determining the sealing forces in a shut-off valve takes into account the design features of its components and their elements, which affect the amount of sealing pressure.

How does a shut-off valve function?

A shut-off valve works by controlling the flow of fluid. It consists of two fundamental components: the control device and the control element. The control element ensures the required closing and opening of the valve, allowing fluid to pass through smoothly when everything works correctly.

What are the different types of shut-off valves?

Various types of valves like ball valves, globe valves, gate valves, pressure valves, temperature control valves, solenoid valves, instrument valves, etc may work as shut-off valves. Shut-off valves are widely used where system safety is of importance as they represent a positive action safety device.

What are the parts of a shut-off valve?

Content may be subject to copyright. The diagram of a shut-off valve with a SVS, a replaceable nozzle and a split spindle: 1 − rod; 2 − spindle; 3 − half rings; 4 − outer ring; 5, 6 − supports; 7 − replaceable nozzle; 8 − housing; 9 − threaded sleeve; 10 − post; 11 − coupling nut.

What materials are shut-off valves made of?

Shut-off valves are manufactured using various materials based on fluid service compatibility. Common shut-off valve materials include Brass, Carbon Steel, Stainless Steel, Alloy Steel, etc. For low-pressure temperature applications in the water industry, plastic or polypropylene valves are used.