F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
F16K1/32—Details
F16K1/34—Cutting-off parts, e.g. valve members, seats
Epurateur de gaz destine a permettre l'echange de gaz en conformite avec la reglementation sanitaire entre une enceinte fermee et l'atmosphere exterieure
Nouveau joint d'etancheite de conduite de remplissage ou de nettoyage de recipients ou containers tels que des cuves contenant des produits petroliers