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ABB Data Sheet - FPD150 160 Differential Pressure – Primary Flow Element Orifice Plates and Orifice Flange Unions

Summary

Monitor liquid, gas, or steam flowrate with high-precision orifice plates and flange unions designed for differential pressure measurement. This manual provides comprehensive technical details on diverse plate configurations—including concentric, eccentric, conical, and quarter-circle types—engineered for varying fluid viscosities and solids content. Ideal for process engineers and industrial clients requiring reliable, standardized flow metering solutions compliant with ISO and ASME standards in critical piping systems.

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Data sheet DS/FPD150/160–EN

FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions

Simple flow metering solutions for liquids, gases and steam, backed up by comprehensive documentation, certification and testing

Measurement made easy

Simple orifice plate for low-cost measurement installs direct between flanges

Engineered and manufactured to latest standards to ISO5167:2003 as standard other design standards available

Orifice flange Unions ready for direct welding into pipeline manufactured in accordance with ASME B16.36 tappings accurately positioned complete with gaskets, nuts and bolts

Range of flange drillings / ratings available raised, flat or RTJ-profile

Page Summary Contents For ABB Data Sheet - FPD150 160 Differential Pressure – Primary Flow Element Orifice Plates and Orifice Flange Unions

Page 1 Data sheet DS/FPD150/160–EN FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Simple flow metering solutions for liquids, gases and steam, backed up by c...
Page 2 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Orifice plates Orifice plate types The differential pressure generated is sensed at a pair (or Concentr...
Page 3 Concentric conical entrance type plate Concentric quarter-circle type plate Conical Entrance plates have a bore with a chamfered (or Quarter-circle plates differ from conical entry plates by having co...
Page 4 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Segmental square-edge type plate Orifice flange unions The bore of segmental plates is in the shape of ...
Page 5 Materials and Traceability Applications BS EN 10204 3.1 B,C Orifice plates are an incredibly versatile flow metering NACE MR-01-75 technology and can be used in a wide range of flow measurement applic...
Page 6 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Maximum working pressure Specification Limited by the application flange rating. Materials Maximum work...
Page 7 Pressure losses Typical pressure 40 to 95% of the generated differential loss: pressure, dependent on the Beta ratio (d/D) and plate design Pipeline installation Mounting: Butt weld, socket weld or sc...
Page 8 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Ordering information FPD150 orifice plates Main code Optional code Orifice plates FPD150 XX XX XX XXX X...
Page 9 Main code Optional code Orifice plates FPD150 XX XX XX XXX XX XX XX XXX XX XX XXX XXX XX XXX XX XX XXX XX XXX XXX See page 8 See pages 11, 12 and 13 Pipe schedule Schedule 5S S1 Schedule 5 S2 Schedule...
Page 10 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Main code Optional code Orifice plates FPD150 XX XX XX XXX XX XX XX XXX XX XX XXX XXX XX XXX XX XX XXX ...
Page 11 Main code Optional code Orifice plates FPD150 XX XX XX XXX XX XX XX XXX XX XX XXX XXX XX XXX XX XX XXX XX XXX XXX See page 8 See page 10 Flange rating ASME Class 150 A1 ASME Class 300 A3 ASME Class 40...
Page 12 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions Main code Optional code Orifice plates FPD150 XX XX XX XXX XX XX XX XXX XX XX XXX XXX XX XXX XX XX XXX ...
Page 13 Main code Optional code Orifice plates FPD150 XX XX XX XXX XX XX XX XXX XX XX XXX XXX XX XXX XX XX XXX XX XXX XXX See page 8 See page 10 Testing Impact testing @ –46 °C (–50.8 °F) CH1 Impact testing @...
Page 14 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions FPD160 orifice flange unions OT1 Main code Options Orifice flange unions FPD160 XX XX XX XX XX XX XX XX...
Page 15 OT1 Main code Options Orifice flange unions FPD160 XX XX XX XX XX XX XX XXX XX XX XX XXX XXX XX XXX XX XX XXX XX XXX XXX XX XXX XX XXX XXX See page 14 See pages 17 and 18 Pipe schedule Schedule 5S S1 ...
Page 16 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions OT1 Main code Options Orifice flange unions FPD160 XX XX XX XX XX XX XX XXX XX XX XX XXX XXX XX XXX XX ...
Page 17 OT1 Main code Options Orifice flange unions FPD160 XX XX XX XX XX XX XX XXX XX XX XX XXX XXX XX XXX XX XX XXX XX XXX XXX XX XXX XX XXX XXX See page 14 See page 15 See page 16 Orifice sealing face Scro...
Page 18 FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions OT1 Main code Options Orifice flange unions FPD160 XX XX XX XX XX XX XX XXX XX XX XX XXX XXX XX XXX XX ...
Page 19 Notes FPD150/160 Differential pressure – primary flow element orifice plates and orifice flange unions DS/FPD150/160–EN
Page 20 Contact us Note We reserve the right to make technical changes or Process Automation modify the contents of this document without prior Salterbeck Trading Estate notice. With regard to purchase orders...

Manual Details

Brand Element
Pages 20
File Size 456.15 KB
Published June 03, 2026
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Frequently Asked Questions

What plate design should be used when measuring liquids with suspended solids?

Use an Eccentric square edge plate because its bore is positioned adjacent to the pipe wall, allowing solids to pass freely.

Can I use a concentric orifice plate for dirty liquids or gases containing solids?

No, solids can build up in front of the plate on concentric types, which compromises accuracy and may cause blockages.

What criteria determine the tapping location for differential pressure measurement?

Taps must generally be placed 25.4 mm (1 inch) from the upstream and downstream faces relative to the primary flow element face.

Which plate is recommended for measuring low-velocity or high-viscosity clean liquids?

Conical entrance plates or quarter-circle plates are suitable, as they maintain accuracy down to relatively low Reynolds Numbers.

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