ABB Orifice plates for flow FPD150

Overview

The ABB FPD150 orifice plates range is a primary flow element – a precision-manufactured orifice plate that creates a defined pressure drop in a pipeline so that a separate differential pressure transmitter can infer flow rate. Manufactured to ISO 5167 and available in concentric, eccentric, and segmental bore designs, the FPD150 is the reference-standard primary element behind a large share of the differential pressure flow measurement installed worldwide.

Seven Star LLC supplies the FPD150 as a trusted supplier of ABB products in Oman and across the GCC, machining and certifying each plate to the pipe schedule, beta ratio, and process fluid the customer specifies, backed by ABB’s calculation and application engineering support.

Operating Principle

As fluid passes through the sharp-edged bore of the orifice plate, its velocity increases and its static pressure drops in proportion to the square of the flow rate, following the Bernoulli principle. Tapping this pressure differential across the plate – via flange, corner, or D and D/2 taps – and feeding it to a DP transmitter gives a traceable, repeatable flow signal without any moving parts in the pipeline itself.

Because the relationship between differential pressure and flow is governed by a published international standard rather than a proprietary calibration curve, an ISO 5167 orifice plate installation can be independently verified and audited by any qualified engineer, which is a large part of its continued use in fiscal and custody-adjacent measurement.

Engineering Design of the FPD150

Concentric-bore plates cover pipeline sizes from DN15 to DN900 (½ to 36 inches); conical-entrance, quarter-circle, and eccentric variants cover DN15–DN500; and segmental plates cover DN25–DN600. Plates are manufactured to a standard thickness of 3, 6, or 10 mm, with alternatives from 1.5 mm up to 16 mm engineered per the specific pressure differential and beta ratio, since an under-thickness plate can deform under sustained high differential pressure. Flange ratings follow ASME Classes 150 through 2500 lb. or DIN PN6 through PN160, and permanent pressure loss across the plate typically runs 40–95% of the generated differential pressure depending on the beta ratio and plate design selected.

Bore geometry is calculated from the specified beta ratio (the orifice bore diameter divided by the pipe internal diameter), machined to the tight edge-sharpness and bore-roundness tolerances ISO 5167 demands, and stamped with a certified data plate recording the bore, pipe ID, and material for traceability.

The concentric bore suits clean liquids, gases, and steam; the eccentric bore is offset toward the top or bottom of the pipe to pass entrained gas or sediment without fouling the reading; and the segmental design, with a bore shaped like a circular segment rather than a full circle, is used on flows carrying a higher proportion of solids or slurry. Plates are supplied in 304/316 stainless steel or higher alloys for corrosive or high-temperature service.

Key Features

• Manufactured and calibrated to ISO 5167 for internationally auditable accuracy
• Available in concentric, eccentric, and segmental bore geometries
• No moving parts, giving very low maintenance requirements over the plate’s service life
• Compatible with flange, corner, and D/D2 tap arrangements
• Certified data plate for full bore and material traceability
• 304/316 stainless steel as standard, higher alloys available for corrosive or high-temperature media
• Pairs with any standard differential pressure transmitter, new or legacy
• Custom bore sizing engineered to the customer’s specific beta ratio and flow range
• Flange ratings from ASME Class 150 through 2500 lb. and DIN PN6 through PN160, matched to the pipeline’s existing rating
• Optional duplex, super duplex, Alloy 625/825/C276, or titanium construction for aggressive or high-temperature media

Industrial Applications

The FPD150 is used across oil and gas processing, water and wastewater treatment, power generation, and chemical plants throughout Muscat, Sohar, Salalah, and the wider GCC wherever a straightforward, standards-based flow measurement point is required on liquid, gas, or steam lines. The eccentric bore variant is specified where entrained gas or wet steam must be passed without disturbing the reading, and the segmental design is preferred on produced-water or slurry lines carrying a meaningful solids fraction, where a concentric plate would otherwise foul or bias the differential pressure signal over time.

As a trusted ABB supplier, Seven Star LLC supplies correctly sized and certified FPD150 plates together with the DP transmitter and installation guidance needed to bring a new measurement point into service, or to replace a worn plate on an existing orifice run.

Technical Specifications

Request a Quote for ABB Orifice plates for flow FPD150

Contact Seven Star LLC to specify and order an ABB FPD150 orifice plate sized for your pipeline and process conditions in Oman and the GCC.

Related Products

• ABB-Swirl flowmeter SwirlMaster FSS450
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• ABB-Electromagnetic flowmeter ProcessMaster FEP500
• Endress+Hauser Promass F300 Coriolis Mass Flowmeter
• pFlow F5 Ultrasonic Flowmeter for Chilled Water
• Tecfluid Series 2000 Variable Area Flowmeter

Where the ABB FPD150 orifice plates are used

• Liquid pipelines
• Gas and steam lines
• Differential pressure flow loops
• Process plants
• Lines needing a primary element without moving parts

Selection checklist for the ABB FPD150 orifice plates

• Pipe size and schedule
• Bore design
• Beta ratio
• Process fluid
• Pressure tap type
• Plate thickness
• Transmitter to pair
• Material

Installation, commissioning and maintenance notes for the ABB FPD150 orifice plates

Fit the plate between flanges with the sharp edge facing upstream. Connect the pressure taps to the differential pressure transmitter. Inspect the bore edge and the taps at regular intervals.

Requesting a quotation for the ABB FPD150 orifice plates

Please send the pipe size, the process fluid and the flow data. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

FPD150 orifice plate type

It is a primary flow element.

FPD150 maker

It is made by ABB.

FPD150 role

It creates a defined pressure drop in a pipeline.

FPD150 transmitter

A separate differential pressure transmitter infers the flow rate from that pressure drop.

FPD150 bore designs

It is available in concentric, eccentric and segmental bore designs.

FPD150 popularity

It is the primary element behind a large share of differential pressure flow measurement installed worldwide.

FPD150 bore edge

Fluid passes through the sharp-edged bore of the plate.

FPD150 velocity

The velocity rises and the static pressure falls as the fluid goes through the bore.

FPD150 square law

The pressure drop follows the square of the flow rate.

FPD150 Bernoulli

This follows the Bernoulli principle.

FPD150 taps

The pressure differential is tapped across the plate through flange, corner or D and D/2 taps.

FPD150 no moving parts

The pipeline holds no moving parts.

FPD150 verification

Because a published relation governs pressure drop and flow, an installation can be checked by any qualified engineer.

FPD150 machining

Each plate is machined to the pipe schedule, the beta ratio and the process fluid specified.

FPD150 thickness

The plate thickness is engineered to suit the pressure differential and the beta ratio.

FPD150 thin plates

A plate that is too thin can deform under the differential pressure.

FPD150 engineering support

Calculation and application engineering support from ABB backs each plate.

FPD150 documentation

Manufacturer documentation is supplied with a quotation.

FPD150 customers

Seven Star LLC serves process plants across Muscat, Sohar and Salalah.

FPD150 support

Seven Star LLC gives local technical support with selection.

Flow records for the ABB FPD150 orifice plates

Record the plate data, the transmitter range and the date of each inspection.

Choosing the right ABB FPD150 orifice plates design

Choose the bore design and the beta ratio from the pipe data and the process fluid.