Description
Double Disc Globe Valve is a common valve, mainly composed of valve body, valve cover, valve disc, valve seat, etc. Its design feature is the use of double disc structure, through the alternating action of two discs to achieve the opening or closing of the fluid. The double disc structure can effectively reduce the fluid resistance during valve operation and provide smoother flow control. The valve body is usually made of cast steel, stainless steel and other materials, with high mechanical strength and corrosion resistance. The valve disc and valve seat are usually made of hard materials to ensure long-term sealing effect. This valve is suitable for fluid flow regulation and interception, and is widely used in pipeline systems in the petroleum, chemical, electric power and other industries, especially suitable for fluid control under medium and high pressure environments.
Features
Double disc design
The double disc design of Double Disc Globe Valve has obvious advantages. When the valve is opened and closed, the smaller disc opens first, which can reduce the pressure difference before and after the valve, so that the pressure on the valve during the opening and closing process is relatively small. By lifting the small disc, the large disc is driven to open, reducing the torque required for operation. Compared with the single disc design, the double disc design makes the valve opening and closing easier, especially in large-diameter, high-pressure pipeline systems. The reduction in operating torque not only improves operating efficiency, but also reduces the difficulty of equipment maintenance.
Suitable for high-pressure and high-temperature occasions
The design of this Double Disc Globe Valve complies with standards such as ASME B16.34 and API 623, and can work normally under pressure levels from Class 150 to Class 2500, and the pressure range covers PN 16 to PN 420. The high-quality materials used in the valve, such as WCB and CF8M, ensure its excellent performance in high-pressure and high-temperature environments. The choice of valve body and valve seat materials enables it to maintain stable structural strength and good sealing performance under extreme working conditions, and is particularly suitable for use in high-pressure pipeline systems in the oil and natural gas industries. The valve can also be equipped with welding ends (BW) or flange ends (RF) as needed to provide flexible installation methods for different working conditions.
Replaceable seat ring design
Double Disc Globe Valve provides a replaceable seat ring design, which greatly extends the service life of the valve. When the valve seat is worn or fails, there is no need to replace the entire valve body, only the seat ring needs to be replaced, which reduces maintenance costs and time. The material of the seat ring can be selected according to the different requirements of the fluid medium, such as corrosion-resistant materials, stainless steel or other alloy materials, to ensure the durability and sealing performance of the valve in specific environments. This design is particularly suitable for use in pipeline systems that are frequently opened and closed in harsh environments, reducing system downtime and improving system stability and production efficiency.
Specification
Size:2"~24"(DN 50~DN 600)
Pressure:Class 150~Class 2500,PN 16~PN 420
End connection:RF,RTJ,BW,FF
Main materials
Casting Steel:WCB,WCC,WC6,WC9,LCB,LCC,CF8,CF3,CF8M,CF3M,CF8C,4A,5A,6A,CN7M,CW6MC,
CW12MW,CU5MCuC,C5,C12,M35-1
Special Alloy Steel:Inconel,Hastelloy,Monel
Products standard and features
Std:
1.Design & manufacture:BS 1873,API 623
2.Flange END:ASME B16.5,ASME B16.47
3.Face To Face :ASME B16.10
4.BW ends:ASME B16.25
5.Pressure-temperature rating:ASME B16.34
6.Inspection & Test:API 598
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