The Bedload Samplers are designed to sample sand, silt, gravel
or rock debris carried by a stream on or immediately above its
bed. Bedload materials have particle sizes or a density that
doesn't allow movement far above or for long distances out of
contact with the streambed. The standard sampler bags come with a
250 micron mesh size (ASTM specs) made out of nylon for excellent
abrasion resistance. Bags can also be provided with 125, 500, and
1000 micron openings as required.
Other bedload samplers are also available upon request but are
not a standard production item such as the ARNHEM, BOGARDI,
SPHINX, VUV, etc.
Handheld Bedload- US
BLH-84
This is a 4 lb. (1.8 kg) handheld wading bedload sampler with a
USGS designed 1.4 expansion ratio. It has a 3" x 3" (76 mm x 76
mm) entrance opening and comes with a 5 ft. long adjustable
handle. An optional 12 ft. long lightweight extension handle
section can be also used for boat or bridge sampling when
conditions are too deep for wading. This sampler uses a style #3
nylon mesh sample bag.
404-001 US BLM-84 10
lbs.
404-002 12 ft. Ext.
Handle 6 lbs.
top
Bedload Sampler- US BL-84
click to enlarge
This is a 65 lb. (29.5 kg) cable-suspended bedload sampler with
3" x 3" (76 mm x 76 mm) opening and 1.4 expansion ratio. A tailfin
arrangement provides flow direction orientation and sliding collar
allows adjustment of balance point based on streamflow conditions.
The collar is set so that the sampler will touch the water tail
first to aid in rapid orientation with the streamlines of flow.
This suspension attitude also insures that the sampler orifice
will lift up immediately when the unit is raised from the bed to
eliminate loss of sample. This sampler uses a style #3 nylon mesh
sampler bag.
404-005 US BL-84 84
lbs.
top
Bedload Sampler- US
BL-84C
This is a 105 lb. (47.7 kg) cable-suspended bedload sampler
identical to US BL-84 except it is heavier for suspension in
larger rivers. It also uses the style #3 bag.
404-008 US BL-84C 138
lbs.
top
Helley-Smith
Samplers
Model 8015, Handheld: This is a 4 lb. (1.8 kg) handheld
sampler with similar operating techniques and characteristics to
BLM-84 (3"x 3" entrance opening) except with a 3.22 expansion
ratio chamber. It comes with a 4 ft. to 8 ft. adjustable handle.
It is made of stainless steel and uses the style #1 bag.
404-010 Helley-Smith
8015 10 lbs.
Model 8025 Handheld: This is a 10 lb. (4.5 kg) handheld
style sampler with a 6" x 6" (152 mm x 152mm) and 3.22 expansion
ratio. It comes with a 5' handle with additional 5' extension. It
is made of stainless steel and uses the style #2 bag.
404-014 Helley-Smith
8025 21 lbs.
Model 8035 Cable-Suspended: This is a 65 lb. (29.5 kg)
cable suspended sampler with similar operating techniques and
characteristics to the US BL-84 (3"x 3" entrance opening) except
with a 3.22 expansion ratio. It is made of stainless steel and
uses the style #1 bag.
404-018 Helley-Smith
8035 85 lbs.
click to enlarge
Model 8055 Cable-Suspended: This is a 105 lb. (47.7 kg)
cable suspended sampler identical to Model 8035 except it is
heavier for suspension in larger rivers. It also uses the style #1
bag.
404-021 Helley-Smith
8055 130 lbs.
Model 8075 Cable-Suspended: This is a 167 lb. (75.8 kg.)
cable suspended bedload sampler with a 6"x 6" (152 mm x 152 mm)
entrance opening and 3.22 expansion ratio. It is made of stainless
steel and uses the style #2 bag.
404-024 Helley-Smith
8075 195 lbs.
top
Bedload Sampler
Sediment Bags
Style #1 - Fits 3.22 expansion ratio 3" orifice
404-026 #1 Bag 0.5 lb.
Style #2 - Fits 3.22
expansion ratio 6" orifice
404-027 #2 Bag 0.5 lb.
Style #3 - Fits 1.4
expansion ratio 3" orifice
404-028 #3 Bag 0.5 lb.
top
Toutle River Sampler- US-TR2
click to enlarge
This is a 180 lb. (81.7 kg) cable-suspended bedload sampler
with a 6"x 12" inlet nozzle and 1.4 expansion ratio. This is made
from 1/4" steel plate and has its own sediment bag. The US ER1 is
a smaller version of this sampler with a 4" x 8" inlet nozzle and
1.4 extension ratio. the US-ER1 is also known as the Elwha River
Sampler and weighs 130 lbs.
404-030 US-TR2-Toutle
210 lbs.
404-032 US-ER1-Elwha
160 lbs.
