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A bypass/diverter valve for controlling the flow of fluid from a source to a fluid treatment device such as a water softener. The valve includes a valve housing defining a circular chamber having a cylindrical wall into which three spaced ports open into. Two of the ports form inlet/outlet ports com

A bypass/diverter valve for controlling the flow of fluid from a source to a fluid treatment device such as a water softener. The valve includes a valve housing defining a circular chamber having a cylindrical wall into which three spaced ports open into. Two of the ports form inlet/outlet ports communicating with connecting conduits. The third port forms an intermediate port that communicates with the input to the water softener. The valve housing also defines a second intermediate port communicating with the output of the water softener and which communicates with the valve chamber through a passage arrangement. A plug-like valving member is rotatable within the chamber and includes a recess which together with the chamber wall defines a passage for selectively communicating one of said inlet/outlet ports with said first intermediate port while concurrently communicating said other inlet/outlet port with the second intermediate port or alternately for communicating said first inlet/outlet port with said second intermediate port while concurrently communicating the second inlet/outlet port with said first intermediate port. The valving member is also positionable to block flow out of either of said inlet/outlet ports. The plug member includes a recess for communicating fluid from the passage to one of the inlet/outlet ports when the valving member is rotated to a predetermined position. A movement control disc delimits the extremes of movement in the valving member and is positionable in two different positions to change the extremes of movement.

대표청구항 ▼

A control valve, comprising: (a) a housing defining a valve chamber having a substantially uniform cylindrical wall; (b) a valving member disposed within said chamber and mounted for rotational movement between predetermined positions; (c) a pair of spaced apart, inlet/outlet ports opening into said

A control valve, comprising: (a) a housing defining a valve chamber having a substantially uniform cylindrical wall; (b) a valving member disposed within said chamber and mounted for rotational movement between predetermined positions; (c) a pair of spaced apart, inlet/outlet ports opening into said chamber through said cylindrical wall and at least one intermediate port opening into said chamber; (d) means communicating a second intermediate port with said chamber; (e) said valving member defining a passage portion, said passage portion being in fluid communication with at least a portion of said cylindrical wall; (f) seal means around said passage portion and sealing engaging said cylindrical wall whereby a passage is formed having a predetermined extent and which is fluidly isolated from said valve chamber; (g) said predetermined extent of said passage and said inlet/outlet port spacing being arranged such that in one position the passage extends between and fluidly cross communicates said pair of inlet/outlet ports, in another position it communicates one of said inlet/outlet ports with said first intermediate port and in third and fourth positions said passage portion formed in said valve member overlies one of said inlet/outlet ports to fluidly isolate said inlet/outlet port whereby flow out of said inlet/outlet port into said valve chamber is blocked; (h) movement control means for limiting movement in said valving member between predetermined positions.