Description: Elastic consumable fitted inside reciprocating‑compressor valves. Mounted between first‑stage valve lift limiter and valve plate. Works together with valve plate to realize opening‑and‑closing cycles for first‑stage hydrogen compression.
Delivers pre‑load spring force to rapidly reset and close valve plates and prevent reverse back‑flow of compressed hydrogen. It cushions impact during valve‑plate opening / closing, limits valve‑plate lift travel and reduces fatigue‑related damage to valve plates. It ensures sensitive differential‑pressure response of valve plates, stabilizes suction‑discharge cycles of first‑stage cylinder and sustains stable unit pressure and gas‑delivery capacity.
‑Helical compression springs, multiple springs evenly circumferentially‑distributed.
‑For hydrogen compression service: hydrogen‑embrittlement‑resistant, fatigue‑proof alloy spring‑steel; high‑temperature‑resistance, corrosion‑resistance and stable spring force; adapted for first‑stage alternating compression loads.
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