Importance

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Abstract

A pressure letdown valve includes a housing with a bore passing therethrough which may be tapered and adaptable of receiving internally a coaxial central tube with tapered outside diameter and also two concentric sets of circular baffles frictionally secured in place within the tapers in an interjacent relationship therebetween and so arranged as to provide an alternating valve and baffle structure with multitude of flow reversals fluid passing through the valve must complete with accomplished throttling of high pressure fluid entering valve bore via a fluid supply port located in the center to proceed by way of central tube into the region of peripherally spaced alternately attached baffles respectively sealing on said bore and said central tube for a large pressure reduction through a process of energy conversion when flowing over the plurality of such baffles to exit at substantially lower pressure via a fluid exhaust port including internal valving means and means for a modular baffle assembly and dis-assembly facilitating cost effective fabrication and maintenance of this valve.

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First Claim