overshot weir pricelist

Overshot gates (also known as pivoting weir gates) are used to control upstream water levels. Versatility, efficiency, and safety are the primary reasons the Fresno Overshot Gate is the method of choice for municipal, agricultural, and industrial canal water control.

Waterman Tilting Weir (Overshot) Gates are an overflow-type gate used to control levels in canals, basins and other agricultural, municipal and industrial applications.

The Overshot Gate is simply an overflow style adjustable weir. It consists of a rectangular steel panel, hinged across the bottom, which is raised and lowered by two cables attached to the upper corners of the gate leaf. Basically, liken it to a drawbridge placed in a canal.

The upstream water level is controlled (and can be measured) by raising or lowering the gate leaf via the cable hoist system which can be operated either manually or electrically. Hydraulically, the overshot gate is a moveable weir.

2.0 OBJECTIVETo investigate the characteristic a standing wave (the hydraulic jump) producedwhen waters beneath an undershot weir and to observe the flow patterns obtained.

undershot weir. Install the undershot weir towards the inlet end of the flume andensure that it is securely clamped in position.2. Adjust the undershot weir to position the sharp edge of the weir 20 mm above thebed of the channel. Increase the height of the tilting overshot weir until thedownstream level just start to rise.

3. Gradually open the flow control valve and adjust the flow until an andular jump iscreated with small ripple decaying towards the discharge end of the workingsection. Observe and sketch the flow pattern.4. Increase the height of water upstream of the undershot weir by increasing theflow rate and increase the height of the tilting overshot weir to create a hydraulicjump in the center of the working section. Observe and sketch the flow pattern.d1

Where do and E are feet. Because of the head loss across the jump, theupstream values of E are different. About the graph, (1) to state (2) the fluid doesnot proceed along the specific energy curve and pass through the criticalcondition. The energy dissipates when water flow at weir opening and the energybecame 0 because d0 and d3 has are force from adverse. Same like theequation, Fbefore = Fafter.Practical applications of hydraulic jumps: Dissipation of energy of water flowing over dams and weirs to prevent