Forged Steel Trunnion Ball Valve Description
Forged steel trunnion ball valve is a ball valve made of forged steel material. Its design feature is that the ball is fixed in the valve body through the trunnion and can rotate around the trunnion to open and close the valve. This type of valve has the following characteristics:
Material: Forged steel, with high strength, high temperature resistance, corrosion resistance and other excellent properties.
Application field: Mainly used in industrial fields such as oil, natural gas, chemical industry, and electric power, and performs well under high pressure and high temperature environment.
Structural features: The trunnion structure fixes the ball, reduces friction and wear during operation, and extends the service life of the valve.
Sealing performance: Usually metal hard seals or soft sealing materials are used, which can maintain good sealing performance under extreme working conditions.
Operating torque: The structural design is reasonable, the operating torque is low, and it is easy to operate manual or electric or pneumatic actuators.
Forged Steel Trunnion Ball Valve specification
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Design & Manufacture
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API6D ASME B16.34 GB/T12237
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Face-to-Face dimension
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ASME B16.10 GB/T12221
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Connection ends
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ASME B16.5 ASME B16.47 GB/T9113 JB/T79 HG20592
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Inspection & Test
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GB/T9092 API598
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Pressure Class
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150Lb 300Lb 600Lb 900Lb 1500Lb 2500Lb
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Main Material
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A216 WCB /A352 LCB /A217 WC6 /A217 WC9 /A217 C5 /A351 CF8(M) /A351 CF3(M)
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Size(in)
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2" 2-1/2" 3" 4" 5" 6" 8" 10" 12" 14" 16" 18" 20" 24" 28" 30" 32" 36" 40"
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Service
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Water /Oil goods / Steam / Gas / Acid etc.
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Forged Steel Trunnion Ball Valve
Advantages
Ultra-high pressure tolerance: The forged valve body has a dense structure, and the Class 2500 pressure resistance is 40% higher than that of cast steel;
Extreme adaptability: The seal is stable from -196℃ deep cooling to 550℃ high temperature conditions;
Long life design: The hard sealing ball is resistant to particle erosion, and the opening and closing life is >100,000 times;
Convenient maintenance: The modular valve seat supports online replacement without valve disassembly.
Applications
Ultra-high pressure energy: Natural gas compression station (Class 2500), shale gas supercritical CO₂ injection pipeline;
Nuclear power and chemical industry: Nuclear island coolant control (550℃ high temperature), strong acid medium transportation (F316L corrosion resistance);
Special industry: Liquid hydrogen storage and transportation (-196℃ deep cooling), aviation hydraulic test bench.
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