The difference between the micro-Kai and Kai-type safety valve

May 12 14:02:43, 2021

All-in-one safety valve and the micro-Kai What is the difference: What is the micro-Kai-type safety valve: A41H - ** - **, refers to the degree of opening of the safety valve is a trace height, does not allow sudden opening or closing produce "water Hammer "phenomenon, mainly for liquid media; his typical feature is the same import and export caliber. What is the full safety valve: A42Y - ** - **, when the spool rises to the seat ring with the annular area equivalent to the inner diameter of the seat area (elevated height × spool seal surface circumference generated Of the area = spool sealing surface area), is all open; its typical feature is the outlet diameter larger than the inlet diameter. 1, the whole Kai-type safety valve and the micro-type safety valve is the main difference is that the opening of the different height, the general opening degree of the micro-valve safety valve seat throat diameter of 1/20 ~ 1/40, and all Kai-type safety valve opening height of the valve seat throat diameter of more than 1/4. 2, the selection of precautions: ① safety valve emissions must be greater than the safe discharge of containers; ② operating pressure requires absolutely smooth containers, should consider the use of micro-Kai safety valve (such as compressor cylinder); ③ high-pressure vessels, large Containers and safety relief of large, low pressure vessel is best used in all Kai-type safety valve (such as reactor equipment). 3, the safety valve opening height refers to: the valve flap to leave the closed position of the actual lift.

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