Year1
- 材质：
- 铸钢
- 型号：
- 全焊接球阀
- 规格：
- DN25-DN250
The background of the development of directly buried fully welded ball valve in the heating pipe network system
The heating pipe network is often buried underground. In order to control the valve, a tall valve well needs to be built, rainwater or Snow water will wash garbage into the valve well, and these garbage will produce a large amount of harmful gases in the well. Personal injury may occur when operators enter the valve well to operate the valve. Bursts in pipes and valves can also cause injuries to operators.
There are often debris in the heating pipe network due to construction, welding, corrosion and other reasons. When the medium flows, these debris will be carried to wash away the valve sealing structure, causing damage to the valve sealing surface and causing the valve to not close tightly. Turning off the valve becomes a decoration.
Ordinary valves and pipelines require flanges, screws, and gaskets to connect them. The connection between valves and pipelines wastes a lot of material resources and is not conducive to the global environment and energy conservation and emission reduction. For this reason, directly buried fully welded ball valves have been well developed.
Applications of directly buried fully welded ball valves:
City gas: gas output pipelines, main lines and branch line supply pipelines, etc.
Centralized heating: output pipelines, main lines, and branch lines of large-scale heating equipment.
Heat exchanger: opening and closing of pipes and circuits.
Steel plant: various fluid pipelines, waste gas selective discharge pipelines, gas and heat supply pipelines, and fuel supply pipelines.
Various industrial equipment: various heat treatment pipelines, various industrial gas and thermal pipelines.
Advantages of directly buried fully welded ball valves:
Directly buried fully welded ball valves can be buried directly underground without the need to build tall valve wells to reduce project costs and at the same time avoid the need to operate the valves. causing personal injury.
When the directly buried fully welded ball valve is opened, the valve ball completely surrounds the valve seat. Even if there are impurities in the medium, it cannot wash away the valve seat and the ball sealing surface. Due to this special structure, the valve has the same tightness as the pipeline. life.
When the closed directly buried welded ball valve has a static medium, it will cause damage to the ball and the sealed valve seat. During the opening process, the ball will scrape off the debris deposited when the medium is static. There is a spring under the valve seat to compensate for the pressure and temperature. The changes have a compensating effect and ensure that no leakage occurs.
Directly buried fully welded ball valves can be directly welded to pipelines, saving flanges, screws, and gaskets, and saving a lot of material resources.
, Directly buried fully welded ball valves are better than butterfly valves. When the butterfly plate of the butterfly valve flows in the intermediate medium, the debris in the medium will wash away the butterfly plate, causing damage to the butterfly plate, causing the valve to not close tightly
, Directly buried The fully welded ball valve is better than the gate valve in that the medium and debris will wash away the sealing surface, causing damage to the sealing surface and causing lax closing. When the medium is stationary, debris in the medium will accumulate in the gate groove of the valve, causing the gate to not close in place and causing the valve to not close tightly.
It is light in weight, beautiful in appearance, and easy to insulate, making the supporting equipment more exquisite in appearance.
Due to the special structure, the valve has a long service life and a one-year warranty under normal use.
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