D-74 Sediment Sampler, Aluminum

The US D-74 is a cable-suspended suspended-sediment sampler. The sampler is lowered and raised by means of a suspension system such as a reel and crane or bridge board. It could also be used with a cableway. The sampler can be used in stream depths up to 15 ft and in stream velocities ranging from 1.5 to 6.6 ft/sec.

The sampler has a cast bronze, streamlined body that is 24 in long and weighs 62 lbs. A pint or quart glass bottle sample container is used with the sampler. The head of the sampler is hinged to permit access to the sample container. Tail vanes are provided to orient the instrument into the stream flow. The US D-74 uses 3/16- and 1/4- in internal diameter intake nozzles that project into the stream current for collecting a sample. A port, which points downstream, is located on the side of the sampler head from which air escapes as it is displaced by the sample filling the container. The unsampled zone using the US D-74 is 4.1 in.

The D-74 Sampler comes with 1x gasket installed, 1x spare gasket, and 3x plastic nozzles of different sizes (1/4", 1/8", and 3/16").