11
Sep
What Is A Weir Plate. And weir plate should be made of smooth metal which is free from rust and nicks. Weir plates are one of the highest quality most versatile flow measurement and management tool that you could ask for making a great choice for natural channel water management operations. For a weir to be accurate the approaching flow must be both subcritical and under open channel flowing with a free surface. In the weir box or at its end for free-spilling discharges a weir plate is mounted to a bulkhead.
Over this notch a stainless steel weir plate is attached for the water to actually flow over. Weir plates are one of the highest quality most versatile flow measurement and management tool that you could ask for making a great choice for natural channel water management operations. A weir box usually contains a weir plate at the end which contains a notch in the shape of the letter v. If the nappe discharges into the air the weir has free discharge. For a triangular or v-notch weir the flow rate can be. The weir plate usually constructed of stainless steel is set perpendicular to the direction of flow through the weir box and level vertically and from side-to-side.
When used for flow measurement a weir plate is a barrier across a body of water over which water flows.
All SIRIS type thin plate weirs are fabricated from Grade 316 stainless steel and machined with a. Over this notch a stainless steel weir plate is attached for the water to actually flow over. The edge or surface over which the water flows is called the crest. If the nappe discharges into the air the weir has free discharge. Here the weir plates may actually come in a set to allow for the selection of an appropriate weir plate to fit a site unique anticipated flows versus trying to apply a given weir angle. For a weir to be accurate the approaching flow must be both subcritical and under open channel flowing with a free surface.