Title: Valve construction and flow restrictor for use therewith

Abstract: A valve construction for controlling the flow of a fluid therethrough and including a restrictor member that is located in a control chamber and that communicates with the control pilot valve and an interior chamber having access to a pressure responsive diaphragm, the restrictor member providing for sufficient flow of fluid to the interior chamber in relatively large valve sizes to enable the diaphragm to open or close the valve at a reasonable valve closing rate, the closing of the valve being slow enough to prevent the occurrence of water hammer in the system.

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Inventors: Pett, Alfred W. (Warwick, RI, US)

Application Number: 572619
Filing Date: 1975-04-28
Publication_date: 1976-01-27
Assignee: New England Union Co. (West Warwick, RI)
Primary Class(es): 251/45 138/43, 251/43
Other Classes:
US Patent Ref:

1813979	Jul, 1931	West	138/43.
2235304	Mar, 1941	Toussaint	251/45.
2323115	Jun, 1943	Bryant	138/43.

Other Refs:
Primary Examiner: Rosenthal, Arnold
Assistant Examiner:
Attorney: Salter & Michaelson