What is a Daniel orifice meter?
Daniel™ Orifice Meter Tubes significantly minimize the adverse effects of turbulence on flow measurement accuracy by expertly combining a Daniel orifice fitting (Senior™, Junior™, Simplex™ or Orifice Flange Union) and a flow conditioner or tube bundle with the appropriate upstream and downstream pipe lengths based on …
What are the parts of orifice meter?
An orifice meter is a piece of equipment used to measure the flow rate of a gas or a fluid. It mainly consists of an orifice plate, an orifice plate housing, and a meter tube.
Which way does orifice plate face?
Ideally, this edge will be knife-sharp. Looking at the side-view of this orifice plate, the intended direction of flow is left-to-right, with the sharp edge facing the incoming fluid stream and the bevel providing a non-contact outlet for the fluid.
What are the three orifice plate designs?
Types of orifice plates
- Concentric orifice plate.
- Eccentric orifice plate.
- Segmental orifice plate.
- Quadrant edge orifice plate.
How does an orifice plate work?
Orifice plates are a primary flow element, detecting the flow of a fluid passing through the plate by sensing the pressure drop across the plate. When a fluid flows through a restriction in a pipe, it creates a pressure difference between upstream and downstream of the restriction.
What are the design guidelines of orifice meter?
Design Considerations of Orifice Plate
- Square Root Relationship.
- Beta (β) Ratio. β ratio < 0.2 Means: β ratio > 0.7 Means:
- Reynolds Number.
- Selection of Differential Pressure Transmitter Range.
- Location of Pressure Taps. Flange Taps: Venacontractra & Radius Taps: Corner Taps:
Can an orifice plate be installed backwards?
The hole through an orifice plate is precisely machined round with a sharp edge on the upstream side and a beveled edge downstream. Backwards installation of the orifice plate, that is with the beveled edge upstream, will invalidate the governing calculations described in AGA`s Report No.
Which way should the bevel face on an orifice plate?
Bevelled orifice plates are obviously uni-directional, and must be installed with the paddle text facing upstream while the bevelled end faces downstream. These are generally used when the process material contains foreign matter that may block the orifice in the case of a concentric configuration.
What are different types of orifice?
Types of Orifice Plates
- Square Edge (Standard) Bore. For the common square edge concentric bore orifice, the bore and bevel is the standard method of limiting the plate edge thickness.
- Quadrant Edge Bore. The quadrant edge bore is an orifice with the inlet edge rounded.
- Eccentric Bore.
- Segmental Bore.
- General Description.