Year1
- 公称通径：
- DN150~1500
- 压力等级：
- ANSI 150lb~2500lb
- 适用温度：
- -196～815℃
Overview of welded ball valve
Fully welded ball valve is widely used in various fields. Its superior quality and high performance stability cannot be achieved by ordinary cast steel ball valve. The use of fully welded ball valve The service life is much longer than that of cast steel ball valves. Imported welded ball valves will not have external leakage. Because the valve seat is composed of carbonized Teflon sealing rings and carbon springs, it has strong adaptability to changes in pressure and temperature. The pressure and temperature are marked. No leakage will occur within the temperature range. The processing process of the sphere is tracked and detected by advanced computer detectors, so that the processing accuracy of the sphere is high. Since the valve body material is the same as the pipe material, there will be uneven stress and will not be deformed due to earthquakes and vehicles passing over the ground, and the pipes are resistant to aging. The sealing ring body is made of carbon-rich material to ensure no leakage. Welded ball valves are widely used in various pipeline equipment such as urban gas, urban heating, petrochemical, shipbuilding, steel pressure regulating stations, power plants, etc. A product independently designed, developed and manufactured by Germany's Olschen R welded ball valve, it can be buried directly underground, eliminating the need to build a tall valve well and reducing project costs. It can also avoid personal injury when operating the valve. The welded ball valve can operate reliably for a long time. Under normal operation and use of the valve, the warranty period is one year.
Features of fully welded ball valve
The valve body structure is integrally welded and there will be no external leakage.
The valve seat is composed of a sealing ring and a spring and has strong adaptability to changes in pressure and temperature, and will not cause any leakage within the range of use.
Anti-leakage structure of the valve stem. There is a self-sealing gasket and a shaped sealing ring at the bottom of the valve stem. There is a shaped sealing ring on the top and two sealing gaskets to ensure no leakage.
The valve body material is the same as the pipe material, so there will be no uneven stress, nor will it be extruded and deformed due to earthquakes and vehicles passing over the ground.
The valve body is light and easy to keep warm.
Directly buried ball valves can be buried directly underground. There is no need to build tall valve wells. Instead, only small shallow wells need to be set up on the ground, which greatly saves construction costs and engineering time.
The length of the valve body and the height of the valve stem can be adjusted according to the construction and design requirements of the pipeline.
The processing accuracy of the sphere is very precise, the operation is light, and there is no harmful interference.
There are two connection methods: welding and flange.
Operation mode handle, gear vertical/horizontal
Under normal operation and use of the valve, the warranty period is one year.
Fully welded ball valve product structure
This valve is an integral welded ball valve made of carbon steel seamless steel pipe pressed.
The valve stem is made of stainless steel. The valve body is made of stainless steel, which is made by precision machining and grinding. It has excellent sealing performance and corrosion resistance.
The seal adopts carbon reinforced bevel elastic sealing ring with negative pressure on the spherical surface, which enables the seal to achieve zero leakage and long service life.
The connection methods of this valve include welded threaded flanges for users to choose. The transmission mode adopts a handle, turbine, pneumatic, electric and other transmission structures, and the switch is flexible and light.
This valve is compact in structure, light in weight, easy to insulate and easy to install. This valve is generally installed horizontally.
The one-piece welded ball valve is developed by absorbing advanced foreign technology and combining it with domestic actual conditions. It replaces imports with domestic products and fills the domestic gap. It is widely used in long-distance pipeline fields such as natural gas, petroleum, heating, chemical industry and thermal power pipeline network.
Specifications and standards for imported welded ball valves
Dimensions~
Pressure grade b~ Applicable temperature~
Valve body material carbon steel, stainless steel, alloy steel
Internal parts material carbon steel, stainless steel, alloy steel Special materials
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