Abstract: A fully-integrated flow-control valve assembly for top-filled fuel tanks incorporates both a float valve assembly and a shut-off valve assembly in a single unit that screws into a threaded aperture in the top of the fuel tank. Whereas all other systems having similar function rely on an inlet valve and a level control/vent positioned apart from one another and intercoupled with a bleed line that runs either inside or outside the fuel tank, the device of the present invention directly mounts the two devices together and allows a simple installation. There is no need for a line that couples two remotely positioned units of the prior art flow-control assemblies.

Abstract: There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest from a fluid utilizing the chromatographic separation member.

Abstract: A gas-fired unit heater (10) is provided and includes a burner (20), a heat exchanger tube (18) located to receive a flow of the combustion products from the burner (20), the tube (18) including at least one linear tube run (30) extending along a longitudinal axis (18), and a corrugated baffle (40) received in the tube run (30).

Abstract: There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest from a fluid utilizing the chromatographic separation member.