The workshop covers the influencing factors in differential pressure metering installations (Orifice and Venturi), enabling engineers to check and research further investigation into non-compliant installations. 

Content

1.   Measuring principle

2.   Primary Devices

·      Piping (Orifice)

§  Straight length

§  Carrier sizes

·       Pressure Taps

• Location
• Size
• Burrs

·       Orifice Plate

• Edge Roundness
• Deformation
• Beveled plate installed backwards
• Eccentric bore

·       Piping (Venturi / Nozzle)

• Straight length
• U/S Carrier Ring (Nozzle)

·       Meter

• Geometry
• Piezo Ring
• Entrance, Oil Coating, Surface Finish, Cylindrical throat coated, Step in throat, Tapered throat

·       Pressure Taps

• Size
• Burrs

3.   Impulse Lines

·       Sizes and lengths

·       Joints and tubing

4.   Secondary Devices (and flow computers)

·       Uncertainty 

·       Data entry