An anti-siphon/regulator valve is provided. The valve includes a body having a cylindrical portion and a frustoconical portion extending from the cylindrical portion. The valve includes an inlet opening formed in a first end of the body on the cylindrical portion and an outlet opening formed in a second end of the body on the frustoconical portion. The valve also includes an inner multi-tapered aperture extending from the inlet opening and the outlet opening. The valve operates to regulate fluid flow from the inlet opening through the outlet opening based on the geometry of the multi-tapered aperture, and to inhibit flow from the outlet opening through the inlet opening because of that same geometry.

A reject valve of a reverse osmosis device, which is especially suited for brackish water reverse osmosis devices, which require a low system pressure less than 15bar. The valve keeps the system pressure substantially constant in a pre-defined range of the reject volume. The size of the inflow channel is adjusted by a spring-operated cone, which never entirely closes the channel, which forms a constant throttle until the pressure of the inflow has risen to approximately three quarters of the pressure arranged by the spring and prevailing at maximum volume of the reject flow. This operation is arranged structurally such that onto the shaft of the cone is fixedly supported a transverse plate abutting the inner wall of the body, which as pressed by the compression spring is supported by the end of an element connected to the end of the body, wherein the cone is in its lowest position.

A reject valve of a reverse osmosis device, which is especially suited for brackish water reverse osmosis devices, which require a low system pressure less than 15bar. The valve keeps the system pressure substantially constant in a pre-defined range of the reject volume. The size of the inflow channel is adjusted by a spring-operated cone, which never entirely closes the channel, which forms a constant throttle until the pressure of the inflow has risen to approximately three quarters of the pressure arranged by the spring and prevailing at maximum volume of the reject flow. This operation is arranged structurally such that onto the shaft of the cone is fixedly supported a transverse plate abutting the inner wall of the body, which as pressed by the compression spring is supported by the end of an element connected to the end of the body, wherein the cone is in its lowest position.

A fitting with a body bound by an exterior surface and an interior surface. The exterior surface includes a quick disconnect profile extending from a first end of the body and an external thread extending from a second end of the body. The interior surface includes a first bore extending from the first end of the body and a second bore extending from the second end of the body. The fitting includes an orifice formed by the first bore, between a pin and the first bore, or between the pin and a third bore of an adjustment member installed within the first bore.

A fitting with a body bound by an exterior surface and an interior surface. The exterior surface includes a quick disconnect profile extending from a first end of the body and an external thread extending from a second end of the body. The interior surface includes a first bore extending from the first end of the body and a second bore extending from the second end of the body. The fitting includes an orifice formed by the first bore, between a pin and the first bore, or between the pin and a third bore of an adjustment member installed within the first bore.

A regulator valve assembly is provided for use in connection with high pressure fluid systems. The regulator valve assembly includes a valve pin having an engagement portion with a tapered surface and a valve seat having a valve pin receiving aperture defining a tapered surface on the valve seat to sealingly mate with the engagement portion of the valve pin. At least one of the valve pin and the valve seat includes an asymmetrical surface feature sized and shaped such that, when the valve pin is displaced away from the seated configuration and fluid flows through an annular space created between the engagement portion of the valve pin and the valve seat, unbalanced hydrodynamic forces arise from an interaction of the fluid with the asymmetrical surface feature. Systems incorporating the regulator valve assembly are also provided.

A heat exchanger valve includes a housing (2) having an inlet, an outlet a valve seat (5) on a valve seat member (24) between inlet and outlet, a valve element cooperating with the valve seat (5) and having a valve element axis, and presetting mechanism having a bushing (9) which is rotatable around the valve element axis and has an opening arrangement cooperating with a counter passage in the housing (2), wherein in the region of the opening arrangement the bushing (9) has a conical form cooperating with a conical counter face (13) and a distance is provided between the bushing (9) and the valve seat member (24). Such a heat exchanger valve should allow a precise pre-setting over a large range. To this end the bushing (9) has at least two notches (14) in an edge (10) facing the valve element member (24), each of the notches (14) forming an opening (25).

A proportioning valve for a reverse osmosis system that controls the production of product water by the differential pressure across the purification membrane. By sensing increasing tank pressure to actuate the proportioning valve, the flow of waste water is restricted. Placement of seals within the cavity of the valve, as well as placement of waste water inlet and outlet ports, protects tension components that provide reverse tank pressure from waste water exposure. A needle valve assembly responsive to an actuating assembly that senses tank pressure removes the need for an inlet tank water port while restricting water flow.

An apparatus for use in marine platform jacking is disclosed herein. In one aspect, a jetting valve includes a valve body with a piston assembly disposed therein. The piston assembly is selectively operated to open and close the valve. A biasing member is coupled to the piston assembly. The piston assembly includes a first piston and a second piston. The dual pistons, in cooperation with the biasing member, allow the valve to self-seal thereby preventing entry of a fluid which is external to the valve.

An apparatus for use in marine platform jacking is disclosed herein. In one aspect, a jetting valve includes a valve body with a piston assembly disposed therein. The piston assembly is selectively operated to open and close the valve. A biasing member is coupled to the piston assembly. The piston assembly includes a first piston and a second piston. The dual pistons, in cooperation with the biasing member, allow the valve to self-seal thereby preventing entry of a fluid which is external to the valve.