A modular potable water distribution manifold for an aircraft water supply and drainage system includes a tubular element with a first manifold quick connector adapted to mate with a flexible hose connector and having a flow control poppet, a second manifold quick connector having a flow control poppet, the second manifold quick connector adapteded mate with a terminating self-venting/self-draining device, and a rotating ferrule that mates the second manifold with the self-venting/self-draining device.

The invention provides a method of demand management for fluid networks. The method includes the steps of providing a computer controlled fluid network for delivery of fluid to at least one customer (14), maintaining a real time database (16) within the computer controlled fluid network of predetermined parameters, requesting a flow rate and time of delivery of said fluid from the fluid network through a user interface (22) to a customer (20), determining, using predetermined parameters from the real time database (16), the availability (24) of providing delivery of fluid from the fluid network to the customer (14) based on hydraulic capacity of the fluid network, and, if the hydraulic capacity is available, calculating parameters (38) using the real time database (16) to deliver fluid to the customer (14) through the computer controlled fluid network.

A liquid distribution system having at least one liquid conduit extending from a liquid source to a liquid tap and a method for substantially retaining the temperature of a liquid in the liquid distribution system. When a tapping operation is finished, the liquid is evacuated from the liquid conduit, and a gas is brought into the liquid conduit in order to replace the liquid therein and cause the liquid to flow backwards to the liquid source. When liquid is to be tapped from the liquid tap, the gas is evacuated from the liquid conduit.

A method, apparatus, and system for obtaining a solution from a solid product are disclosed. A solid product is housed in a dispenser. A liquid is introduced into the housing of the dispenser to interact with the solid product to form a solution. To control the concentration of the formed solution, the turbulence of the liquid introduced to the dispenser is controlled and adjusted either manually or on a real time basis to account for varying characteristics of either or both of the solid product and the liquid. The dispenser will adjust the turbulence based on the characteristics to maintain a formed solution within an acceptable range of concentration. The concentrated solution can then be discharged from the dispenser to an end use application.

A valve manifold has a housing with a central mixing chamber and a shell surface. The shell surface of the valve manifold has at least two valve ports, with each valve port being associated with one valve. A first valve port has three openings, and additional valve ports each having three openings. A respective first opening of the valve ports is in direct fluid communication with the central mixing chamber, and the second and third openings of the valve ports are each in fluid communication with an inflow or outflow via a duct. A bottom of the mixing chamber, in relation to a plane arranged perpendicularly to a vertical longitudinal axis of the housing, has a slope towards the first opening of the first.

Three-way valve with two flaps comprising single control means (9) for the two flaps and actuation means (12, 13, 50) arranged each to drive, pivotwise, one of the two flaps, from one to the other of its open and closed position of one of the pathways, with a temporal phase-shift, characterized in that it comprises maximum displacement end-stops for each of said actuation means, the end-stop (31) of the second actuation means (12, 50) corresponding to a fully closed position of its flap and the end-stop of the first actuation means (13) being positioned beyond the position of said first actuation means when the second actuation means (12, 50) is on its end-stop (31), the kinematic chains linking the first and second actuation means to the single control means operating nominally.