초록 ▼

A control valve in which the bonnet is removably fixedly attached to the valve body by a retained bolt and slot arrangement in such a way as to fix the marginal edge of the diaphragm main valve therebetween. The diaphragm defines with the bonnet a control chamber having an inlet control passage lead

A control valve in which the bonnet is removably fixedly attached to the valve body by a retained bolt and slot arrangement in such a way as to fix the marginal edge of the diaphragm main valve therebetween. The diaphragm defines with the bonnet a control chamber having an inlet control passage leading thereto from the valve body inlet and an outlet control passage leading therefrom to the valve body outlet. A control valve seat in the outlet valve seat is controlled by a solenoid plunger valve element in such a way as to afford either manual or electrical solenoid operation by virtue of a manually movable member mounting the solenoid assembly on the bonnet. An adjusting knob member is mounted by a snap fit on the bonnet in laterally offset relation with respect to both the main valve and the solenoid assembly. An adjusting member is snap fitted in fixed relation to the knob member and has a meshing gear relationship with a valve engaging element threaded on the interior of the bonnet so as to move toward and away from the main valve in response to turning movements of the knob member.

대표청구항 ▼

A control valve comprising a valve body having an inlet for receiving water under pressure, an outlet, a main valve seat communicating between said inlet and said outlet and a first flanged annular mounting portion surrounding said main valve seat providing a first annular diaphragm edge receiving s

A control valve comprising a valve body having an inlet for receiving water under pressure, an outlet, a main valve seat communicating between said inlet and said outlet and a first flanged annular mounting portion surrounding said main valve seat providing a first annular diaphragm edge receiving surface means, a main valve mounted in said valve body structure for movement between an engaged position with respect to said main valve seat preventing communication of said inlet with said outlet through said main valve seat and a spaced position with respect to said main valve seat allowing communication of said inlet with said outlet through said main valve seat, said main valve having a diaphragm connected therewith and extending outwardly therefrom, a valve bonnet having a second flanged annular mounted portion providing a second annular diaphragm edge receiving surface means means for removably securing said valve bonnet on said valve body with a marginal edge of said diaphragm engaged between the first and second flanged annular diaphragm edge receiving surface means so that said diaphragm defines with said valve bonnet a control chamber, pressure control means operatively associated with said control chamber and said inlet and outlet for (1) utilizing the water under pressure communicating with said inlet to create sufficient water pressure in said control chamber to maintain said main valve in said engaged position and (2) for discharging water under pressure from said control chamber to said outlet to reduce the water pressure in said control chamber sufficient to enable said main valve to move into said spaced position, said control means comprising control passage means from said control chamber to said outlet having a control valve seat therein, a solenoid assembly including a control plunger spring biased toward an extended position and a solenoid coil means energizable to retract said control plunger from said extended position against the spring bias thereof into a spaced retracted position, means mounting said solenoid assembly on said bonnet in a solenoid operating position wherein said control plunger is (1) spring biased to engage said control valve seat when in an intermediate position between said extended and retracted positions so as to prevent communication of said control chamber with said outlet through said control passage means and (2) retractable from said intermediate position by the energization of said solenoid coil means to permit communication of said control chamber with said outlet through said control passage means, and an adjusting mechanism carried by said bonnet for manual movement into selected positions for selectively varying the distance between said main valve and said main valve seat when said main valve is in said spaced position, said bonnet mounting means comprising: said first flanged annular mounting portion having a series of annularly spaced threaded bores formed therein, a series of headed bolts threaded into said threaded bores, the second flanged annular mounting portion of said bonnet having a series of flange sections corresponding with the series of bolts, said flange sections including bolt receiving slots having open ends opening in the same annular direction and being shaped to enable said bonnet to be moved (1) from a separated condition in a direction toward said valve body into a preliminary position of cooperation between said first and second annular diaphragm receiving surface means wherein said bolt are disposed adjacent the open ends of said slots and (2) from said preliminary position in an annular direction into an operating position wherein said bolts are disposed in said slots in positions to be tightened onto the associated flange sections.