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Suspended load sampler Delft, for sediment
Suspended load sampler Delft, in use
Suspended load sampler Delft, in use
Suspended load sampler Delft, for sediment
Suspended load sampler Delft, in use
Suspended load sampler Delft, in use

Suspended load sampler, Delft bottle

04.31.01

The Delft bottle type suspended load sampler is the standard set for sampling sediment particles larger than 50 μm in rivers and other water courses. This set is applicable in velocities up to 8.2 feet (2.5 m) /s and can be used at any depth.

  • Measuring suspended sediment transport in rivers and other water courses
  • The sampler can be used with or without frame
  • Can be used at any depth 
  • Sturdy construction 
  • Easy to use 

Description

The suspended load sampler Delft bottle is used to measure suspended sediment transport in rivers and other water courses, from the surface down to 0.3 feet (0.1 meter) above the river bottom. The water containing sediment flows through a bottle shaped collector. The shape induces a low pressure at the rear part of the device, so the water enters the nozzle of the sampler with almost the same velocity as the undisturbed flow.

When the water reaches the wide sampling chamber, the velocity decreases, and this causes the sediment material to settle. The sampler is made with a sturdy construction. Because of the weight of the instrument, a davit with depth gauge and winch is required for handling. Please note that simultaneous measurement of the water speed is necessary. 

The suspended load sampler is easy to use. The sampler can be used in two ways: 

  • With no frame, suspended on a cable for all depths from the surface to 1.64 feet (0.5 meter) above the bottom. A tail fin keeps the nozzle in up-stream direction 
  • With frame, standing on the bottom, the height can be set to 3.9, 7.8, 11.8, 15.7 and, 19.6 inch (10, 20, 30, 40 and 50 centimeter) from the bottom. 

Applications

  • Measuring suspended sediment transport in rivers and other water courses

Set contains 

  • Delft bottle sampler 
  • Nozzle 1.9 cm², straight 
  • Nozzle 1.9 cm², bended 
  • Nozzle 3.8 cm², straight 
  • Nozzle 3.8 cm², bended 
  • Measuring glass, content 3.9 inch (100 milliliter)
  • Frame for Delf bottle, for use bottom placement 
  • Wooden case for Delft bottle 

Specifications

Suspended load sampler, Delft bottle
Particle size >50 μm
Maximum water velocity 8.2 ft/s | 2.5 m/s
Maximum sample depth > 32.8 feet | 10 m
Product material Steel, other material
Rod or cable operated Cable
Sample stored in Bottle
Sample volume 100 ml
Package size 47.2 x 37 x 19.6 inch | 120 x 94 x 50 cm 
Weight 205 lbs | 93 kg