5, which provides theflow rate of that particular plumbing fixture as a unit of flow; fixtures are rated as mul tiples of this unit of flow. Required flow rates are defined based on a “Fixture Count” method that is determined after appropriate research and analysis of controlling variables 34.Flood Level Rim The edge of a plumbing fixture or receptacle over which water wouldflow if it were full. Flood level rim means the top edge at which water can overflow from a fixture or device. 35.Flush Valves
A device located at the bottom of a flush tank for flushing toilets. A flush valve is the part inside the tank of the toilet that moves the water into the bowl. Toilet flush valves come in different sizes from 2” to 4” depending on the manufacturing of the toilet. A flush valve is a self-closing valve designed to release a large volume of water when activated. This mechanism is often used to flush a toilet or urinal. 36.Flushometer Valve a device which discharges a predetermined quantity of water to a fixture for flushing purposes and is closed by direct water pressure. A water- saving device for flushing toilets and urinals that uses pressure from the water supply system rather than thefor ce of gravity to discharge water into the bowl. a valve for flushing toilets or urinals by operation of a handle that discharges a definite quantity of water under pressure directly into the fixture —called also flush valve 37.Grade Means the fall (slope) of a pipe in reference to a horizontal plane expressed in inches per foot.The existing or proposed ground level or elevation on a building site or around a building. A designation of a subfloor, either above grade, on grade, or below grade. In plumbing, the slope of installed pipe, expressed in the fall in inches per foot length of pipe. The classification of the durability of brick. Any surface prepared to accept paving, conduit, or rails. 38.Horizontal Branch A branch drain extending laterally from soil or waste stack, with or without vertical sections or branches, that receives the discharge from one or more fixture drains and conducts it to the soil or waste stack or to the building drain. 39.Horizontal Pipe
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- Fall '15