FIELD: engines and pumps.
SUBSTANCE: invention relates to pumps of the type used for dispensing fluid mediums. Disclosed is a plastomer spring for use in a fluid medium pump, wherein the spring comprises a first end portion and a second end portion and one or more spring sections therebetween, connecting the first end portion with the second end portion and configured to compress in the axial direction of the spring from the initial state to the compressed state, wherein first end portion forms valve chamber for insertion with possibility of retaining movable valve element, wherein valve chamber includes valve seat, in which valve element can be hermetically rest against to prevent fluid medium flow through valve chamber, wherein the valve chamber further comprises a valve support member and a cover configured to allow the valve member positioning in the valve chamber during the manufacturing process.
EFFECT: simplified design and increased reliability.
33 cl, 22 dwg
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