Anh
pressure reducing valve
main valve of regulator
Đức
Druckminderventil
Reglerklappe
Pháp
clapet de détente
clapet de détente /ENG-MECHANICAL/
[DE] Druckminderventil
[EN] pressure reducing valve
[FR] clapet de détente
[DE] Reglerklappe
[EN] main valve of regulator