Toilet fill valve with improved noise abatement

摘要

A toilet fill valve includes a housing defining a water fill passage and a water inlet. A valve disposed in the passage divides the housing into a upstream portion and a downstream portion. A pressure regulator vertically oriented in the downstream portion of the housing has a spiral configuration providing a significant pressure drop in the water flow. Noise abatement is enhanced by pressure regulation which reduces the flow velocity, flow directors which inhibit turbulence, and energy drops provided in a downspout.