krohne Wedge flowmeter

SKU: 4695814-1-1035-443
In Stock

  • Harsh media applications.
  • Rugged and durable design.
  • Wide temperature and pressure.
  • Bi-directional flow measurement.

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Description

The Wedge Flowmeter: Built for Unforgiving Conditions

The wedge flowmeter is a specialized and rugged solution engineered for the most difficult applications where other flow measurement technologies simply fail or have an extremely limited service life. It is the go-to device for handling fluids with high viscosities, abrasive solids, or a tendency to cause scaling or agglomeration. Unlike other differential pressure (DP) flowmeters that rely on a sharp-edged orifice or a streamlined Venturi tube, the wedge meter features a V-shaped restriction that is specifically designed to allow solid materials and thick fluids to pass through without causing a “damming” effect. This unique, simple, and robust design has established the wedge flowmeter as a standard for particularly harsh process conditions, especially in industries like refining and mining, where solids are a common part of the flow stream. Its ability to perform where other technologies falter makes it an invaluable asset for process integrity and control.

A Simple Principle for Complex Fluids

The wedge flowmeter operates on the fundamental principle of differential pressure, but it applies this principle in a way that is optimized for challenging fluids. A simple, V-shaped restriction, or wedge, is placed within the pipeline. As the fluid flows over this wedge, it creates a differential pressure between the upstream and downstream sides, which is then measured by a DP transmitter. The V-shaped design of the wedge is crucial. It creates a smooth, continuous flow path that prevents the buildup of solid particles and high-viscosity materials that would otherwise clog and compromise a traditional orifice plate or Venturi tube. The large opening at the bottom of the “V” allows sediment and heavy particulates to pass through, ensuring that the measurement remains stable and the device does not require frequent cleaning or maintenance. This rugged yet simple design, combined with a wide choice of wetted materials, makes it highly resistant to erosion and corrosion, guaranteeing a long service life even in the harshest environments.

Specialized Applications in Heavy Industry

The wedge flowmeter’s unique design makes it indispensable for a variety of specialized and demanding applications where other flow measurement devices are not practical. In refineries, it is a standard for measuring coker feed and ADU/VDU residues, where solid coke particles can pass along with the hot feed flow. Its ability to handle high viscosities also makes it perfect for ferromagnetic slurries and other thick, challenging media common in industrial processes. In oil production and mining, where solids are often present in the fluid stream before being separated, the wedge flowmeter provides a reliable measurement. It is also well-suited for applications where there is a tendency for scaling or agglomeration, as the design naturally flushes away any potential build-up. The meter’s ability to handle these difficult fluids makes it a critical component for maintaining process control and efficiency in industries that face significant operational challenges. The wedge flowmeter’s versatility and reliability in these punishing environments make it a true workhorse of industrial instrumentation.

Unmatched Durability for Long-Term Value

Investing in a wedge flowmeter is a long-term decision that pays off through reduced maintenance and a lower total cost of ownership (TCO). Its rugged design is built to withstand the punishing effects of abrasive fluids and high viscosities. With no moving parts, there is nothing to wear out or break down, which contributes to a long and reliable service life. Unlike other flowmeters that require frequent cleaning or recalibration due to material buildup or erosion, the wedge flowmeter maintains its accuracy and performance over time. The availability of a large choice of wetted materials for the meter body and diaphragm seals, including duplex stainless steel (1.4462/318) and nickel alloys (2.4819/Alloy C276), allows for customization to specific fluid chemistry, further enhancing its durability. The advanced 3-D linearised OPTIBAR DP transmitters reduce the need for field recalibration, while the option for redundant versions (1oo2, 2oo3) provides an extra layer of reliability for critical applications. This combination of robust construction and smart technology ensures that the wedge flowmeter delivers maximum value and minimal downtime.

Performance Across a Wide Operating Range

The wedge flowmeter is not only rugged but also versatile, with an impressive operating range that allows it to be used in a variety of extreme conditions. It can handle process temperatures from to ( to ), making it suitable for both cold and high-heat applications. It is also designed to operate at high line pressures, with capabilities up to bar ( psi). The meter’s flanged connections are available in various sizes from DN50 to DN600 (2 to 24 inches), with the ability to accommodate larger sizes upon request. Its bi-directional flow measurement capabilities make it a flexible solution for processes where flow direction can reverse, which is a key advantage in many complex industrial systems. The robust design and wide operating range ensure that the wedge flowmeter can be relied upon to deliver accurate and stable measurements under even the most extreme industrial conditions.

The Global Standard for Sourcing

When it comes to purchasing specialized industrial equipment like the wedge flowmeter, authenticity and reliability are paramount. The online store, tpt24, is the premier global destination for this product, offering an unmatched level of trust and service. They have earned their reputation by providing a service built on an unwavering commitment to quality. Every product available on their platform is a genuine, high-quality instrument, backed by a guarantee of authenticity and quality. This assurance gives you complete peace of mind, knowing that you are investing in a durable and high-performing device that will function as intended. No matter where you are in the world, be it a major industrial center or a remote location, tpt24 provides reliable worldwide delivery, ensuring your equipment arrives promptly and in perfect condition. Their efficient logistics network and dedication to providing genuine products make them the go-to source for professionals who cannot afford to compromise on quality or reliability.

Comprehensive Integration and Connectivity

In the modern industrial landscape, a flowmeter must be more than just a measurement device; it must be a fully integrated part of a connected system. The wedge flowmeter is designed for this reality, offering a range of communication options to suit any application. The standard 2-wire 4-20 mA/HART® provides a robust analog signal for basic control and a digital layer for advanced diagnostics and remote configuration. For more sophisticated, networked environments, the device is available with FOUNDATION™ Fieldbus and Profibus-PA protocols. These digital options enable real-time data transfer to distributed control systems (DCS), allowing for continuous monitoring, predictive maintenance, and streamlined process control. The meter’s compliance with NAMUR standards (including NE 107 for clear diagnostic information) simplifies troubleshooting and reduces the need for manual intervention. This robust connectivity ensures that the wedge flowmeter can be seamlessly integrated into any modern automated system, making it a smart investment for facilities looking to optimize their processes.

A Reliable Choice for Difficult Applications

In conclusion, the wedge flowmeter is a specialized and durable solution for flow measurement in harsh industrial environments. Its unique design, which allows it to handle high viscosities and fluids containing solids, makes it a reliable choice where other technologies would fail. Its robust construction ensures long-term stability and a low total cost of ownership. The ability to handle a wide range of process conditions, combined with advanced features like redundancy and modern communication protocols, makes it a comprehensive and dependable flow measurement solution. It is a testament to the power of a well-engineered design, delivering consistent and accurate performance in the most challenging of circumstances.

Specifications

Specifications

Depending on selected device configuration

General information

Product type Flowmeter
Product positioning For harsh process applications with abrasive and viscous media
Product variants
Measurement principle Differential pressure
Nominal diameter / size DN50…600 / 2…24

Operating conditions

Process pressure max. 160 bar / 2320 psi
Process temperature -40…+500°C/
-40…+932°F

Materials

Measuring tube Austenitic stainless steel (1.4404/316L), Duplex stainless steel (1.4462/318), Nickel alloy (2.4360/Alloy 400), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Nickel-chromium-molybdenum-niobium alloy (2.4856/Alloy 625), Carbon steel (A105)

Process connections

Flange connections EN (1092-1): DN50…600
ASME (B 16.5): 2…24″
others on request
Other connections Hub flange connections
Weld-in connections But weld ends

Approvals/Standards

Certificates/Approvals Others NACE, Pressure Equipment Directive (PED)
Certificates/Approvals Ex ATEX, IECEx, NEPSI
Certificates/Approvals Safety SIL 2/3
Design standards ASME MFC-3M, ISO 5167-6
NAMUR compliance NE 107, NE 21, NE 43, NE 53

Communication

Analogue outputs 4…20 mA
Digital outputs FOUNDATION™ Fieldbus, HART®, Profibus-PA, Bluetooth

Accuracy

Reference uncertainty 0.15…0.22%

Data Sheet

Download Data Sheet Of krohne Wedge flowmeter