Description: Elastic consumable fitted inside reciprocating‑compressor valves. Installed between third‑stage valve lift limiter and valve plate. Cooperates with valve plate for opening‑closing cycles under third‑stage high‑pressure hydrogen‑compression conditions.
Provides pre‑load spring force to rapidly reset and close valve plates and block reverse‑flow of high‑pressure hydrogen. It cushions impact of valve‑plate open‑close cycles, restricts valve‑plate lift travel and mitigates fatigue damage. Delivers sensitive differential‑pressure response, stabilizes suction‑discharge cycles for third‑stage cylinder and guarantees stable unit pressure and gas‑delivery capacity.
‑ Helical compression springs; multiple springs evenly circumferentially‑distributed.
‑ For high‑pressure‑hydrogen service: hydrogen‑embrittlement‑resistant, anti‑fatigue alloy spring‑steel; high‑temperature‑resistance, corrosion‑resistance and stable spring‑force; suited for third‑stage high‑pressure alternating compression loads.
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