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Brand: ABB
ABB 1330L Integral Orifice Flow Element
Description
Overview
The ABB 1330L Integral Orifice Flow Element is a specialized differential pressure (DP) primary element engineered explicitly for the accurate flow measurement of liquids, gases, and steam in extremely small-diameter pipelines. While standard orifice flange assemblies are suited for large industrial mains, the 1330L fills the critical gap for micro-flow and pilot-plant applications. As a premier supplier of advanced industrial instrumentation, Seven Star LLC proudly distributes the complete ABB measurement portfolio to research facilities, chemical dosing plants, and petrochemical laboratories across the Sultanate of Oman and the wider GCC region.
Designed for unparalleled ease of installation, the 1330L is structured to be close-coupled directly to an ABB differential pressure transmitter. This “integral” design eliminates the need for complex, leak-prone impulse piping, significantly reducing installation time and mitigating the risk of freezing or blockages in the sensing lines. The result is a highly compact, robust, and exceptionally responsive flowmeter assembly tailored for critical low-flow environments.
Measurement Principle
Like its larger industrial counterparts, the 1330L operates on the proven Bernoulli principle of differential pressure. As the fluid passes through the precision-machined bore of the integral orifice plate, its velocity increases, creating a localized drop in static pressure. This differential pressure is directly proportional to the square of the volumetric flow rate.
Because the 1330L is close-coupled, the high and low-pressure ports on the element align perfectly with the standard 2-1/8 inch center-to-center connections of modern DP transmitters. The transmitter instantly calculates the flow rate based on the pressure drop across the internal plate. When ordered with a specialized calibration report from the ABB Flow Laboratory, this compact element can achieve a remarkable systemic flow accuracy of ±0.5% of the actual flow rate.
Engineering Design & Flexibility
The physical architecture of the ABB 1330L prioritizes adaptability and long-term serviceability. The unit is available for standard small pipe diameters, specifically 1/2-inch, 1-inch, and 1-1/2-inch lines. Customers can specify the process connections as either internal NPT threaded ends for rapid integration into pilot skids, or flanged pipe runs for permanent, high-pressure industrial installations.
One of the most valuable engineering features of the 1330L is its field-replaceable orifice plate. If the process parameters (such as flow range or fluid density) change after installation, technicians can easily unbolt the assembly and swap the internal orifice plate for one with a different bore size, without needing to replace the entire flow element or transmitter body. For critical high-purity applications, the assembly can also be ordered with specialized degreasing and cleaning procedures specifically certified for oxygen service.
Key Features
- Optimized specifically for highly accurate flow measurement in small pipelines (1/2″, 1″, and 1-1/2″ sizes).
- Integral design allowing direct, close-coupled mounting to standard DP transmitters (2-1/8″ centers), eliminating external impulse piping.
- Exceptional measurement accuracy of ±0.5% of actual flow when factory-calibrated at the ABB Flow Laboratory.
- Field-replaceable orifice plates enabling rapid bore size changes to accommodate evolving process flow ranges.
- Available with robust internal NPT threaded connections or heavy-duty flanged pipe runs.
- Optional specialized factory cleaning and certification available for safe use in pure oxygen service.
- Supports remote transmitter mounting via optional adapter kits for high-temperature or inaccessible piping networks.
Industrial Applications
The compact footprint and high precision of the ABB 1330L Integral Orifice Flow Element make it indispensable in environments where every drop counts. In the petrochemical and refining sectors of Oman, these elements are heavily utilized in additive dosing systems, where tiny volumes of expensive chemical inhibitors must be injected into main pipelines with absolute accuracy.
Furthermore, research and development laboratories, pilot-scale desalination plants, and specialized pharmaceutical manufacturing facilities rely on the 1330L for continuous monitoring of carrier gases and ultra-pure water. The ability to specify oxygen-clean assemblies also makes it a preferred choice for medical gas production facilities. Seven Star LLC supports these highly specialized applications with expert sizing consultation and dedicated procurement services.
Sizing and Selection Guidance
Correct bore sizing on the 1330L depends on the expected minimum and maximum flow rate, the fluid’s density and viscosity, and the differential pressure range the paired transmitter is configured for – getting this wrong either starves the transmitter of a usable signal at low flow or drives an excessive, energy-wasting pressure drop at high flow. Seven Star LLC’s engineers calculate the correct orifice bore using the same beta-ratio methodology ABB’s own flow laboratory applies, ensuring the delivered element matches the customer’s actual process conditions rather than a generic stock configuration.
Because the orifice plate is field-replaceable, a facility that later changes its process flow range, dosing rate, or fluid can re-bore or swap the plate without procuring an entirely new flow element or disturbing the transmitter mounting, protecting the initial instrumentation investment as the process evolves. This is particularly valuable in pilot-plant and R&D settings, where flow conditions are more likely to change between test campaigns than in a fixed industrial process line.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ABB 1330L |
| Device Type | Integral Orifice Flow Element |
| Measurement Principle | Differential Pressure (DP) |
| Available Line Sizes | 1/2-inch, 1-inch, 1-1/2-inch |
| Process Connections | Internal NPT Threads or Flanged |
| Transmitter Connection | Close-Coupled (2-1/8 inch centers) |
| Calibrated Accuracy | ±0.5% of actual flow |
| Orifice Plate | Field-Replaceable |
| Special Options | Oxygen Service Cleaning Available |
Request a Quote for ABB 1330L Integral Orifice Flow Element
To perform precise bore sizing for your application, request a formal quotation, or download the comprehensive DS/1330L technical datasheet for the ABB 1330L Integral Orifice Flow Element, please consult the instrumentation specialists at Seven Star LLC today. As a premier supplier of advanced flow measurement technologies in Oman and the GCC, our engineering team is ready to assist you in designing the optimal low-flow DP measurement loop.
Related Products
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- ABB-Electromagnetic flowmeter ProcessMaster FEP500
- ABB-Electromagnetic flowmeter ProcessMaster FEP630
- pFlow D118 Clamp-On Ultrasonic Flow Meter
Datasheets & Documents
- Datasheet ABB 1330L Integral Orifice Flow Element Datasheet Download
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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.
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Frequently Asked Questions
The ABB 1330L is specifically engineered for small-diameter pipelines, filling the gap where standard orifice flanges are too large. It is available for 1/2-inch, 1-inch, and 1-1/2-inch pipe sizes.
An integral design means the orifice element mounts directly to the differential pressure transmitter. This "close-coupled" architecture eliminates the need for running complex, external impulse piping, which reduces installation costs and eliminates potential leak points.
Yes. The 1330L features a field-replaceable orifice plate. If your process conditions change, technicians can simply swap the internal plate for one with a different bore size without replacing the entire flow element assembly.
Absolutely. For highly reactive applications such as medical gas or industrial oxygen production, the 1330L can be ordered with specialized factory degreasing, cleaning, and certification specifically for oxygen service.
Seven Star LLC is a premier supplier of advanced industrial instrumentation in the Sultanate of Oman. We provide comprehensive sizing consultation and direct procurement services for ABB flow measurement solutions.

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