Large Size Of Forged Valve
Large size of forged valve refer to valves with a nominal diameter greater than DN50 and manufactured using a forging process. The valve body is usually made of carbon steel, alloy steel or stainless steel, and has the characteristics of high strength, good pressure resistance and excellent sealing performance. It is widely used in high-pressure, high-temperature and large-diameter pipeline systems in the oil, natural gas, chemical, and electric power industries.
Characteristics Of Large Size Of Forged Valve
Advantages：
High strength and good pressure resistance
Forged steel materials have higher strength and toughness, can withstand higher pressure and impact, and are suitable for high-pressure and ultra-high-pressure conditions.
Excellent sealing performance
Advanced sealing structure and materials are used, with excellent sealing performance, zero leakage, and strict sealing requirements.
High temperature resistance and corrosion resistance
Different materials and surface treatment processes can be selected according to different media and working conditions to improve the high temperature resistance and corrosion resistance of the valve and extend its service life.
Reliable structure and long service life
The forged steel valve has a reasonable structural design, and has undergone precision processing and strict testing to ensure that the valve can operate reliably and have a long service life under various working conditions.
Disadvantages:
High Manufacturing Cost
Due to the forging process, the manufacturing cost is relatively high.
High Processing Difficulty
The processing accuracy requirements of large-diameter valves are higher and the processing difficulty is greater.
Comparison Between Large Size Of Forged Valve And Cast Steel Valves
|
Characteristics |
Large size of forged valve |
cast steel valves |
|
Manufacturing process |
Forging |
Casting |
|
Material |
A105/LF2/F304/F316/F321 so on. |
WCB/LCB/CF8/CF8M so on. |
|
Strength |
High |
General |
|
Pressure resistance |
Good |
General |
|
Sealing performance |
Excellent |
Good |
|
High temperature resistance |
Good |
General |
|
Corrosion resistance |
Good |
General |
|
Service life |
Long |
General |
|
Cost |
High |
Low |
Applicable Environment Of Large Size Of Forged Valve
Large size of forged valve are particularly suitable for the following environments:
- High-pressure, high-temperature, large-diameter pipeline systems: For example, long-distance oil and gas pipelines, chemical plants, thermal power plants, etc.
- Occasions with extremely high requirements for valve strength, sealing performance and reliability: For example, natural gas pipelines, liquefied natural gas pipelines, etc.
- Harsh working conditions: For example, high temperature, high pressure, corrosive media, etc.
Large size of forged valve play an irreplaceable role in high-pressure, high-temperature, large-diameter pipeline systems due to their high strength, good pressure resistance, and excellent sealing performance. Compared with cast steel valves, Large size of forged valve have obvious advantages in strength, pressure resistance, sealing performance, and service life, but the manufacturing cost is also higher.
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