Gully arrangement

Abstract

A gully arrangement comprises a housing ( 1 ) having an inlet ( 17 ) at an upper end thereof, a reservoir ( 3 ) in a lower region thereof, and an outlet ( 7 ) in a side of the housing at a level between the reservoir and the inlet. A valve ( 19 ) is provided in an upper region of the housing and is adapted to close the inlet in the event liquid in the housing rises substantially to the level of the valve.

1 . A gully arrangement comprising: a housing ( 1 ) having an inlet ( 17 ) at an upper end thereof, a reservoir ( 3 ) in a lower region thereof, and an outlet ( 7 ) in a side of the housing at a level between the reservoir and the inlet; and a valve ( 19 ) provided in an upper region of the housing and adapted to close the inlet in the event liquid in the housing rises substantially to the level of the valve. 
     
     
         2 . A gully arrangement as claimed in  claim 1 , wherein the housing ( 1 ) is provided with a continuous inwardly-extending lip ( 15 ) for sealing the valve ( 19 ). 
     
     
         3 . A gully arrangement as claimed in  claim 2 , wherein the valve ( 19 ) is adapted to seal with a lower surface of the lip ( 15 ). 
     
     
         4 . A gully arrangement as claimed in  claim 2 , wherein a peripheral region of the valve ( 19 ) engages the lip ( 15 ). 
     
     
         5 . A gully arrangement as claimed in  claim 1 , wherein the valve comprises a flap valve ( 19 ) pivotably mounted along one edge thereof. 
     
     
         6 . A gully as claimed in  claim 1 , wherein the specific gravity of the valve ( 19 ) is less than 1. 
     
     
         7 . A gully arrangement as claimed in  claim 6 , wherein the valve ( 19 ) is made of a material having a specific gravity less than 1. 
     
     
         8 . A gully arrangement as claimed in  claim 6 , wherein the valve ( 19 ) is provided with a float ( 23 ). 
     
     
         9 . A gully arrangement as claimed in  claim 8 , wherein the valve ( 19 ) is provided with the float along a free edge thereof. 
     
     
         10 . A gully arrangement as claimed in  claim 1 , wherein the valve ( 19 ) is provided with reinforcing ribs. 
     
     
         11 . A gully arrangement as claimed in  claim 10 , wherein the reinforcing ribs extend in two transverse directions. 
     
     
         12 . A gully arrangement as claimed in  claim 1 , wherein, in an open configuration of the inlet ( 17 ), the valve ( 19 ) is received in a recess provided in a wall of the housing ( 1 ). 
     
     
         13 . A gully arrangement as claimed in  claim 1 , wherein the outlet ( 7 ) extends in use in an upwardly inclined direction to form a trap.