Brand: ABB

ABB Compact averaging pitot flowmeter PitotMaster FPD550

Name: ABB PitoMaster FPD550 Averaging Pitot Flowmeter – Datasheet
Brand: ABB

Description

Overview

The ABB PitotMaster FPD550 is a compact averaging pitot flowmeter that combines an insertion-style multi-port pitot sensor, an integral 3- or 5-valve manifold, and a differential-pressure or multivariable transmitter into one fully assembled, code-compliant insertion package. Unlike an orifice plate, it does not require the pipeline to be cut and flanges welded in – the probe is inserted through a single hole in the pipe wall, either hot-tapped or drilled during a scheduled shutdown, making it the preferred compact DP technology whenever a new measurement point is needed on an existing line with minimal disruption.

Seven Star LLC supplies the PitotMaster FPD550 as a trusted supplier of ABB products across Oman and the GCC, particularly for customers who need a new flow measurement point on an existing large-bore line without the cost and downtime of a full pipeline shutdown for flange installation. Every unit is factory-assembled and sized to the customer’s actual pipe diameter and insertion length before shipment.

Operating Principle

An averaging pitot sensor carries multiple pressure-sensing ports along a probe that spans the pipe diameter, sampling the velocity profile at several points across the bore rather than relying on a single centerline reading the way a basic pitot tube does. The high-pressure side averages the impact pressure from the upstream-facing ports while the low-pressure side reads a reference pressure from the downstream wake behind the probe, and the resulting differential pressure is converted to flow rate by the integral ABB 266DSH volumetric transmitter (PitotMaster V) or 267CS multivariable transmitter (PitotMaster M), the latter compensating simultaneously for static pressure and process temperature.

Because the sensing element only occupies a narrow probe across the bore rather than a full-bore restriction like an orifice plate, the permanent pressure loss it introduces is substantially lower – a meaningful energy saving on large lines or continuously running utility and process services where pumping or compression cost accumulates over years of operation.

Engineering Design of the ABB PitotMaster FPD550

Installation uses one or two holes hot-tapped or drilled into the pipe wall with the supplied threaded (BSPT or NPT) or flanged (DN25/DN40 to ANSI 150RF/300RF or DIN PN10/16/25/40) mounting adapters, with no need to cut the pipe or weld in a full set of orifice flanges – a significant advantage for retrofit measurement points on lines that cannot easily be taken fully out of service. The probe itself is available in 13 mm or 25 mm diameter, with an optional far-end support for longer insertion lengths, and covers line sizes from 100 mm to 600 mm (4 to 24 inches).

The wetted probe and manifold are manufactured from 316 stainless steel, with sensor diaphragms available in Hastelloy C-276 or gold-plated 316L for hydrogen service, PTFE seals, and a silicone-oil or inert (Halocarbon/Galden) sensor fill depending on the process temperature and media. The unit is rated to a maximum process pressure of 50 bar at 38°C and a maximum process temperature of 180°C, with sensor temperature ratings from −40°C to 121°C depending on the fill fluid selected. Flow turndown reaches 8:1, maintaining a more consistent flow coefficient across a wider velocity range than a fixed-geometry orifice plate typically achieves.

Key Features

Insertion-style multi-port averaging pitot sensor spanning the pipe diameter, available in 13 mm or 25 mm probe size
Integral 3- or 5-valve manifold and DP or multivariable transmitter in one code-compliant assembly
Single or two-hole hot-tap installation – no pipe cutting or flange welding required
Calibrated accuracy of ±1.4% of actual flow (PitotMaster V) or ±1.15% of actual flow (PitotMaster M)
Very low permanent pressure loss compared to an orifice plate, reducing long-term pumping or compression energy cost
Flow turndown of 8:1 with a more constant flow coefficient at high velocities
Line size coverage from 100 mm to 600 mm (4 to 24 in.) on a single compact platform
316 stainless steel probe and manifold, with Hastelloy C-276 or gold-plated 316L diaphragm options for sour or hydrogen service
4–20 mA output with HART communication as standard

Industrial Applications

The PitotMaster FPD550 is used across water, gas, steam, and process utility lines in Muscat, Sohar, Salalah, and the wider GCC where a new measurement point is needed with minimal installation disruption, or where the permanent pressure loss of an orifice plate would carry a meaningful long-term energy cost on a large-diameter line. Its hot-tap-capable installation makes it particularly valuable for adding metering to existing large-bore utility mains, cooling water headers, and compressed-gas distribution lines without scheduling a full process shutdown.

Seven Star LLC, as a trusted ABB supplier, distinguishes the PitotMaster’s insertion, low-pressure-loss approach from the orifice-based OriMaster FPD500 and IOMaster FPD510 units, and helps customers across Oman and the GCC choose the technology that best fits their installation constraints, line size, and long-term energy targets.

Technical Specifications

Key technical specifications for the ABB PitotMaster FPD550 compact averaging pitot flowmeter are summarized below; contact Seven Star LLC for the full data sheet and model-specific ordering information.

Parameter	Specification
Model	ABB PitotMaster FPD550 (V – volumetric / M – multivariable)
Measurement Principle	Differential pressure via multi-port averaging pitot insertion probe
Accuracy	±1.4% of actual flow (V); ±1.15% of actual flow (M)
Flow Turndown	8:1
Line Sizes	100–600 mm (4–24 in.)
Probe Diameter	13 mm or 25 mm, with optional far-end support
Process Connections	BSPT/NPT threaded; DN25/DN40 flanged to ANSI 150RF/300RF or DIN PN10–PN40
Maximum Pressure	50 bar at 38°C
Maximum Process Temperature	180°C
Sensor Temperature	−40°C to 121°C (fill-fluid dependent)
Wetted Materials	316 stainless steel probe/manifold; Hastelloy C-276 or gold-plated 316L diaphragm; PTFE seals
Transmitter	ABB 266DSH (V) or 267CS multivariable (M)
Manifold	Integral 3-valve standard; 5-valve optional
Communication	4–20 mA with HART communication

Request a Quote for ABB Compact averaging pitot flowmeter PitotMaster FPD550

Contact Seven Star LLC to specify an ABB PitotMaster FPD550 for a low-disruption, low-pressure-loss flow measurement point in Oman and the GCC. As a supplier of ABB products, we provide sizing support against your actual line diameter and insertion depth, a quotation with confirmed lead time, and full datasheet access on request.

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About brand

ABB is the Swiss-Swedish engineering group for electrification and automation: low voltage drives, motors, circuit breakers and motor control, process instruments and analysers, control systems and robots. It was formed on 5 January 1988 by the merger of two older companies. ASEA was founded in Västerås, Sweden, in 1883 by Ludvig Fredholm to make electric lighting and generators. BBC Brown Boveri was founded in Baden near Zurich in 1891 by Charles E. L. Brown and Walter Boveri. ABB Ltd is incorporated in Switzerland, headquartered in Zurich and listed on the SIX Swiss Exchange and Nasdaq Stockholm.

ABB company profile

Formed	5 January 1988, by the merger of ASEA (Sweden) and BBC Brown Boveri (Switzerland), each holding 50%
ASEA	Founded 1883 in Västerås, Sweden, by Ludvig Fredholm; first products electric lighting and generators
Brown, Boveri & Cie	Founded 1891 in Baden, Switzerland, by Charles E. L. Brown and Walter Boveri
Headquarters	Zurich, Switzerland; ABB Ltd became the group holding company in 1999
Ownership	Public company listed on SIX Swiss Exchange and Nasdaq Stockholm
Brands in the group	Baldor (US motors, acquired 2011), B&R (machine automation, acquired 2017), K-TEK level instruments, Endura and Navigator analysers, SACE breakers
Product families	Low and medium voltage drives (ACS series), motors, SACE Tmax and Emax breakers, contactors and soft starters, flow, pressure, temperature and level instruments, liquid and gas analysers, Contrac actuators, AC500 PLCs, Ability System 800xA and S800 I/O, protection relays, robots

Milestones

1883: ASEA is founded in Västerås, Sweden.
1891: Brown, Boveri & Cie is founded in Baden, Switzerland.
1987–1988: The merger is announced on 10 August 1987; ABB Asea Brown Boveri starts operating on 5 January 1988.
1999: ABB Ltd, incorporated in Switzerland, becomes the single holding company of the group.
2011 and 2017: Baldor Electric and B&R join ABB.
2020: ABB sells its power grids business to Hitachi, focusing on electrification, motion, process and machine automation.

Choosing an ABB drive

ABB's ACS drive codes are easy to read once you know the pattern. In ACS580-01-046A-4, "ACS580" is the drive family, "01" means a wall-mounted single drive, "046A" is the rated output current (about 46 A) and "-4" means a 380–480 V supply. The family is chosen by application: ACS355 for compact machinery, ACS310 for simple pumps and fans, ACS580 as the general-purpose drive, ACQ580 for water and wastewater with pump functions such as pipe fill and dry-run protection, and ACS880 for heavy industrial duty with direct torque control. Size the drive on the motor's full-load current, not only its kW rating, and allow derating for the high ambient temperatures common in Gulf electrical rooms.

Where ABB products are used

In Oman and the GCC, ABB drives and motors run pumps, fans and compressors in water and wastewater plants, district cooling, oil and gas and industry. ABB flowmeters, level instruments and analysers are used in water utilities, power and desalination plants and refineries, and SACE breakers protect switchboards in buildings and plants.

ABB products we list

Family	Examples
AC drives	ACS580, ACS580-01-046A-4, ACQ580, ACS355, ACS310, ACS880-01, FEN-31 encoder module
Breakers, motor control and protection	SACE Tmax XT, XT3N 250, SACE Emax 2, AF09 contactor, PSR soft starter, REM615 relay
Flow measurement	ProcessMaster FEP300, AquaMaster4, CoriolisMaster FCB430, VortexMaster FSV430, SwirlMaster FSS430, OriMaster FPD500
Pressure, temperature and level	266DRH, 267CS multivariable, TTH300, K-TEK AT100, LMT200, MT5000 GWR, KM26 gauge
Analysers	Endura AZ20, AK100 hydrogen purity, Navigator AW641 silica, AW402 chlorine, AWT210
Control systems and actuators	AC500, AC500-S, S800 AI810, AC 800F SA 811F, Contrac RSD50, Contrac RHD4000

Ordering ABB products: what we need

Send the full type code from the nameplate (for example ACS580-01-046A-4 or 266DSH...) and, for spare parts, the ABB ID number (such as 3BSE008508R1 or 1SBL176001R3010). For drives, add the motor power and current and any option codes (+...). For instruments, send the complete order code, which sets range, materials and approvals. Baldor motors are listed on their own brand page.

Facts checked against ABB company filings and published histories of ASEA and Brown, Boveri & Cie, October 2026.

Frequently Asked Questions

How is the PitoMaster FPD550 installed without shutting down the pipeline?

It is inserted through one or two holes in the pipe wall using the supplied mounting adapters, avoiding the pipe cutting and flange welding a full-bore orifice installation requires.

How does an averaging pitot sensor differ from an orifice plate?

It samples the velocity profile at multiple points across a bar spanning the pipe diameter rather than restricting the full bore, which gives it a much lower permanent pressure loss than orifice plate.

What flow turndown can the PitoMaster FPD550 handle?

It offers a large flow turndown ratio, maintaining a more constant flow coefficient at high velocities than a fixed-geometry orifice plate typically achieves.

What manifold options are integrated into the PitoMaster FPD550?

A 3- or 5-valve manifold is integrated directly into the assembly along with the differential pressure transmitter, forming one fully code-compliant insertion unit.

Is Seven Star LLC an experienced supply partner for ABB products?

Yes, Seven Star LLC is a trusted ABB supplier supplying and specifying the PitoMaster FPD550 across Oman and the GCC.

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