Float-actuated fluid valve assembly

A fluid system valve assembly, comprising:

• a valve housing defining a flow path between an inlet portion and an outlet portion;
• a movable valve element disposed within said valve housing and configured to control fluid flow through one or more flow paths;
• a float mechanism responsive to liquid level changes and including a float cage having a top cap and a bottom cap connected by connecting rods;
• a mechanical linkage that operatively couples said float mechanism to said movable valve element, wherein said mechanical linkage includes a flexible cable connection comprising a wire rope, cable, and/or cord secured with compression sleeves at both ends;
• and
• a compressive spring system comprising two compression springs constructed of stainless steel material that bias said movable valve element toward predetermined positions.

A float-controlled valve apparatus, comprising:

• a valve body assembly having fluid inlet and outlet connections;
• a piston mechanism movably positioned within said valve body assembly;
• a valve closure element configured to engage a sealing surface to regulate fluid flow;
• a buoyant actuator assembly responsive to liquid level variations and optionally including a float cage having a top cap and a bottom cap connected by connecting rods;
• a wire rope, cable and/or cord coupling system connecting said buoyant actuator assembly to said piston mechanism, wherein vertical displacement of said buoyant actuator assembly causes corresponding movement of said piston mechanism and valve closure element;
• and
• a sealing system with multiple O-rings constructed from thermoplastic materials that provides fluid-tight seals between components of said valve body assembly.

A float-actuated fluid valve assembly, comprising:

• a valve body having an inlet port and an outlet port;
• a floating piston movably disposed within said valve body and having a cross-sectional area;
• a poppet positioned within said valve body and configured to selectively seal against a poppet valve seat to control fluid flow between said inlet port and said outlet port, said poppet having a poppet rod extending therefrom;
• a poppet guide directing movement of said poppet within said valve body;
• a float assembly operatively connected to said floating piston through a wire rope connecting mechanism wherein said float assembly includes a float that is replaceable with floats of different sizes, weights and cross-sectional areas;
• and
• a flow restricted pressure balancing channel providing a controlled fluid path for pressure equalization during valve operation, wherein said cross-sectional area of said floating piston is greater than a cross-sectional area of a poppet piston chamber where said poppet operates.

A fluid system valve assembly, comprising:

• a valve housing defining a flow path between an inlet portion and an outlet portion;
• a floating piston disposed within said valve housing and configured to move axially in response to pressure differentials;
• a poppet valve element positioned within said valve housing and configured to control fluid flow through a flow path;
• a poppet valve flow channel extending around said poppet valve element;
• a float mechanism responsive to liquid level changes;
• a wire rope that connects said float mechanism to said floating piston;
• and
• a flow restricted pressure balancing channel configured such that said flow restricted pressure balancing channel provides controlled fluid communication between chambers within said valve housing and provides an ability for fluid to flow or be stopped as needed to ensure fluid flow regulation from one or more fluid holding tanks.