In industrial fields such as petroleum, natural gas, and chemical engineering, the pressure-bearing performance of valves is one of the key factors to ensure the safe operation of systems. API 6D and ASME B16.34 are two important standards widely applied in the design and manufacturing of valves. This article will conduct a comparative analysis on the pressure-bearing performance differences between trunnion ball valves and gate valves under these two standards, helping engineers and purchasers better select valves suitable for their application scenarios.
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I. Analysis of the Causes of Excessive Switching Torque of Ball Valves
(A) Problems with the Valve Body Structure
• Unreasonable Sealing Structure: Insufficient machining accuracy of the sealing surface or improper selection of sealing materials will lead to an increase in the friction between the ball and the valve seat, thereby increasing the switching torque.
In industrial fields such as petroleum, natural gas, and chemical engineering, the pressure-bearing performance of valves is one of the key factors to ensure the safe operation of systems. API 6D and ASME B16.34 are two important standards widely applied in the design and manufacturing of valves. This article will conduct a comparative analysis on the pressure-bearing performance differences between trunnion ball valves and gate valves under these two standards, helping engineers and purchasers better select valves suitable for their application scenarios.
I. Analysis of the Causes of Excessive Switching Torque of Ball Valves
(A) Problems with the Valve Body Structure
• Unreasonable Sealing Structure: Insufficient machining accuracy of the sealing surface or improper selection of sealing materials will lead to an increase in the friction between the ball and the valve seat, thereby increasing the switching torque.
