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SLUICE GATE FLOW CHANNEL ACCESSORIES
DESCRIPTION 
Investigations on an undershoot weir 
FEATURES 
Flow under a sluice gate 
LEARNING OBJECTIVES/EXPERIMENTS 
Free discharge under a sluice gate 
Submerged discharge under a sluice gate 
Observation of jet contraction (vena contract) 
Observation of downstream hydraulic jumps 
SPECIFICATION 
sluice gate for the experimental flume 
sluice gate with lateral sealing lips 
manual height adjustment 
scale to read the height of the gate opening 
TECHNICAL DATA 
GATE 
Weir plate made of PVC; head adjustment: 0...120 mm; LxWxH: 160x120x530 mm; 
Weight: approx. 3kg 

RADIAL GATE FLOW CHANNEL ACCESSORIES
DESCRIPTION
Investigations on a radial gate 
FEATURES 
Flow under a radial gate 
LEARNING OBJECTIVES/EXPERIMENTS 
Free discharge under a radial gate 
Submerged discharge under a radial gate 
Observation of jet contraction (vena contracta) 
Observation of downstream hydraulic jumps 
SPECIFICATION 
Radial gate for the experimental flume 
Radial gate with lateral sealing lips 
Height adjustment using lever 
TECHNICAL DATA 
GATE 
Weir plate made of stainless steel, 
Width: 80 mm; radius of the segment: 298 mm; 
LxWxH: 310x160x460 mm; 
Weight: approx. 3kg

SET OF PLATE WEIRS FOUR TYPES FLOW CHANNEL ACCESSORIES
DESCRIPTION
Flow over different sharp-crested weirs, investigations on an aerated overshoot weir 
FEATURES 
Flow over sharp-crested weirs 
Typical measuring weirs 
LEARNING OBJECTIVES/EXPERIMENTS 
Free and submerged overfall at the sharp-crested weir 
Effect of aeration on flow processes at plate weirs 
Nappe observation of separation at a sharp-crested weir 
Together with a level gauge: 
Plate weirs as measuring weirs: determination of the discharge coefficient; comparison of the measuring weirs (Cipoletti, Rehbock, Thomson) 
Determination of the discharge 
Comparison of the theoretical and the measured discharge 
SPECIFICATION 
4 sharp-crested weirs for the experimental flume 
rectangular weir with optional aeration as sharp-crested weir 
Thomson weir, Cipoletti weir and Rehbock weir as measuring weirs 
identical weir height for all weirs 
holder for measuring weir to be studied 
holder and rectangular weir both with lateral sealing lips 
weir plates made of stainless steel 
older and rectangular weir made of PVC 
TECHNICAL DATA 
Thomson weir 
Triangular weir opening 
Rehbock weir 
Rectangular weir opening 
CIPOLETTI WEIR 
Trapezoidal weir opening; 
LxWxH: 150x86x210 mm (holder) 
LxWxH: 150x86x270 mm (rectangular weir) 
Total weight: approx. 2kg 
 
 

CRUMP WEIR FLOW CHANNEL ACCESSORIES
DESCRIPTION 
Flow behavior on an underwater weir, weir according to E. S. Crump with defined inclinations both upstream and downstream 
FEATURES 
Weir according to E. S. Crump 
LEARNING OBJECTIVES/EXPERIMENTS 
Free and submerged overfall at the Crump weir 
Observation of downstream hydraulics jumps 
Discharge at a sill 
Together with a level gauge: 
Determination of the discharge 
Comparison of the theoretical and the measured discharge 
SPECIFICATION 
Crump weir for the experimental flume 
Weir body contour according to E. S. Crump 
Weir body with sealing lips 
TECHNICAL DATA 
Weir body 
Made of PVC 
Inclination (upstream): 1:2 
Inclination (downstream): 1:5 
LxWxH: 420x84x60 mm; Weight: approx. 2kg 
 

OGEE-CRESTED WEIR WITH PRESSURE MEASUREMENT FLOW CHANNEL ACCESSORIES
DESCRIPTION
Overflow weir with manometer board for displaying the pressure characteristic 
FEATURES 
Pressure distribution along the downstream side of an ogee-crested weir 
LEARNING OBJECTIVES/EXPERIMENTS 
Hydrodynamic overfall at the ogee-crested weir 
Pressure distribution along the downstream side of the weir for different discharges 
Nappe separation 
Together with a water level and a velocity meter: 
Determination of discharge and head 
Comparison of the theoretical and the measured discharge 
SPECIFICATION 
Ogee-crested weir for the experimental flume 
Weir crest with chute with ski jump 
Weir crest with chute 
Weir body made of PVC 
Weir body with sealing lips 
TECHNICAL DATA 
Weir with chute 
LxWxH: 172x84x160 mm 
Weir with chute with ski jump 
LxWxH: 210x84x160 mm 
Total weight: approx. 4kg

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OGEE-CRESTED WEIR WITH PRESSURE MEASUREMENT FLOW CHANNEL ACCESSORIES    CRUMP WEIR FLOW CHANNEL ACCESSORIES    SET OF PLATE WEIRS FOUR TYPES FLOW CHANNEL ACCESSORIES    RADIAL GATE FLOW CHANNEL ACCESSORIES    SLUICE GATE FLOW CHANNEL ACCESSORIES    
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