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Abstract

A steam restricter adapted to be retrofitted into an existing steam trap having a chamber, an inlet for admitting steam and condensate into the chamber and a drain for draining condensate. The steam restricter includes a body having an inlet passage and a cavity in the body, the inlet passage in the body extending to the cavity. A drain outlet passage extends from the cavity for passing condensate from the cavity to the drain of the steam trap. A thermodynamic stop disk is disposed in the cavity for movement between an open position in which the stop disk permits fluid communication through the cavity from the inlet passage to the outlet passage and a closed position in which the stop disk blocks communication from the inlet passage to the outlet passage. A mating base includes an outlet passage that opens into the steam trap drain.

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First Claim