초록 ▼

A high flow low spill quick coupling valve assembly is used to connect to pressurized, large diameter fluid lines. The valve assembly includes a female coupling and a male coupling, each of which defines a fluid passageway. The female coupling fluid passageway is normally closed by a female coupling

A high flow low spill quick coupling valve assembly is used to connect to pressurized, large diameter fluid lines. The valve assembly includes a female coupling and a male coupling, each of which defines a fluid passageway. The female coupling fluid passageway is normally closed by a female coupling valve. The female coupling valve is normally biased into a close position by a female coupling spring which is isolated from the female coupling fluid passageway. The male coupling fluid passageway is normally closed by a male coupling valve. The male coupling valve is normally biased into a close position by a male coupling spring which is isolated from the male coupling fluid passageway. Both male and female coupling valves are fluid pressure balanced to minimize the connecting force and opening force. The male coupling is inserted into the female coupling and is engaged with the female coupling to open the fluid passageways. A vent conduit vents the internal air pressure between inside and outside of the coupling valve assembly. The fluid spillage or leakage is minimized. The male coupling further includes an insert seat which forms an internal groove. All spring members in the valve assembly are isolated from contact with the fluid media.

대표청구항 ▼

[ What is claimed is:] [1.] A coupling valve assembly, comprising:a female coupling defining a female coupling fluid passageway therethrough, the female coupling including a female valve which is normally biased into a closed position by a female coupling spring so as to close the female coupling fl

[ What is claimed is:] [1.] A coupling valve assembly, comprising:a female coupling defining a female coupling fluid passageway therethrough, the female coupling including a female valve which is normally biased into a closed position by a female coupling spring so as to close the female coupling fluid passageway;a male coupling defining a male coupling fluid passageway therethrough, the male coupling including a male valve which is normally biased into a closed position by a male coupling spring so as to close the male coupling fluid passageway;a clip coupling/decoupling the male coupling and the female coupling so as to open/close the fluid passageways; anda plurality of seals defining fluid pressurized areas, each of the plurality of seals having a sealing diameter, three of the seals being disposed in the female coupling, and two of the plurality of seals being disposed in the male coupling, the sealing diameter of one of the seals in the female coupling being the same as the sealing diameter of one of the seals in the male coupling, the sealing diameter of the other two seals in the female coupling being the same as the sealing diameter of the other one seal in the male coupling, the seals being arranged and configured such that a fluid pressure balance within the male and female couplings in a coupled state is provided.