The closed spring micro opening safety valve is designed according to standards such as GB/T 12241, GB/T 12243, API 520, API 526, API 527, ASME VIII, etc., and achieves the opening pressure of the valve by compressing the alloy steel spring; The fully enclosed design prevents medium leakage and is widely used in equipment pipelines in industries such as petroleum, natural gas, and chemical. The closed spring micro opening safety valve not only has accurate set pressure, but also has stable reseating, effectively protecting pressure equipment pipelines.
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