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mass flow meter / orifice / differential pressure / for liquids
mass flow meter
SITRANS F O

Process pressure: 0 bar - 315 bar
Process temperature: -60 °C - 570 °C

... extreme pressure. The device is a standardized mechanical flow sensor based on DIN EN ISO 5167, used for volume and mass flow measurement. The instrument is capable of providing differential ...

differential pressure flow meter / Venturi / for gas / in-line
differential pressure flow meter
FLC-FN-PIP, FLC-FN-FLN

... from WIKA is a set of flow and venturi nozzles that are specially made to measure liquid, steam and gas flow. This nozzle has an accuracy rate of ≤ ±0.1 % with a 0.1% measurement repeatability ratio. ...

differential pressure flow meter / Venturi / for gas / in-line
differential pressure flow meter
FLC-VT-BAR, FLC-VT-WS

... in measuring the flow of fluids, gas, and steam in applications such as oil production and refining, and in the chemical and petrochemical industry. The unit guarantees minimal pressure loss, and it ...

differential pressure flow meter / for gas / for liquids / insertion
differential pressure flow meter
T 9519

Process pressure: 0 bar - 50 bar
Process temperature: -40 °C - 100 °C

... and gases, this instrument was created for indicating and measuring differential pressure. It has measuring ranges between 0 and 40mbar as well as 0 to 3,600mbar. The static pressure ...

differential pressure flow meter / for air / with display / direct-reading
differential pressure flow meter
PHM-V1

Process pressure: -250 Pa - 2550 Pa
Process temperature: -10 °C - 50 °C

... micromanometer is designed for measuring and adjusting air diffusers and air valves using a patented technology. Accurate air pressure and air flow measurements with over 1000 preprogrammed valve selections ...

differential pressure flow meter / for air / with display / direct-reading
differential pressure flow meter
DPT-Flow-Batt

Process pressure: 7000, 1000, 5000, 2000 Pa
Process temperature: -10 °C - 50 °C
Volumetric flow rate: 0 m³/h - 200000 m³/h

... measurement probe. The DPT-FLOW-BATT is an on-site display designed for air handling units to measure the air flow on centrifugal fans. The DPT-FLOW-BATT can also be used in the duct ...

differential pressure flow meter / for gas / for steam / for liquids
differential pressure flow meter
deltaflow DF8

Process pressure: 0 bar - 690 bar
Process temperature: -200 °C - 1240 °C

The SYSTEC Deltaflow DF8 precisely meters flow in small pipes containing steam, liquids, and gasses, accommodating pipes measuring 1 mm to 25 mm; pressure rates of 0 bars to 690 bars; ...

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systec Controls
differential pressure flow meter / for gas / for steam / for liquids
differential pressure flow meter
deltaflow DF12

Process pressure: 0 bar - 160 bar
Process temperature: -200 °C - 1240 °C

DF12 is known for its construction, which was created for precise measurement of liquids, gases and steam, being suitable for pipes of small and medium size. The standalone probe that is integrated into this device, as well as a spool ...

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systec Controls
differential pressure flow meter / pitot tube / for gas / for steam
differential pressure flow meter
deltaflow DF25

Process pressure: 0 bar - 250 bar
Process temperature: -200 °C - 1240 °C

... manufactured by Systec Controls, is a pitot tube differential pressure flow meter intended for high-pressure applications. It is capable of operating on –200 ... 1240 ...

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systec Controls
differential pressure flow meter / pitot tube / for gas / for liquids
differential pressure flow meter
deltaflow DF44

Process pressure: 0 bar - 100 bar
Process temperature: -200 °C - 1240 °C

The deltaflow DF44 Series is highly designed to provide an extremely high quality performance and functionality for very specific purposes. The DF44 introduces a very helpful and reliable device for several users. The high quality apparatus ...

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systec Controls
differential pressure flow meter / for steam / for liquids / for gas
differential pressure flow meter
deltaflow DF25HDD3

Process pressure: 0 bar - 690 bar
Process temperature: -200 °C - 1240 °C

... Deltaflow Series DF25HDD3 Differential Pressure Flow Meter is widely utilized for live stream as well as high-pressure gases and fluids. It has weld-in connection and ...

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systec Controls
differential pressure flow meter / Venturi / for air / insertion
differential pressure flow meter
MVR/FVR

Volumetric flow rate: 40 m³/h - 90 m³/h

... ISO 5167. The flow which is important and favorable for metering is achieved through the specific deformation process of the thermoplastic material. It allows for an exact fitting as well as for extremely smooth surfaces ...

differential pressure flow meter / Venturi / for air / flange
differential pressure flow meter
VMD

The venturi tube MVR/FVR is a primary element for flow metering in tubings. The principle of the venturi tube allows for meterings with all media. The venturi tube has been especially designed for air flow ...

differential pressure flow meter / for air / stand-alone / with LCD display
differential pressure flow meter
Zephyr II

Process pressure: 6000 Pa
Process temperature: 0 °C - 50 °C

... -in, auto-zeroing, micro-manometer and 'K'-type thermocouple, static pressures and temperatures. There is also an auto zoning feature which enhances the accuracy differential pressure ...

differential pressure flow meter / orifice / for liquids / for gas
differential pressure flow meter
PR series

Process pressure: 0 bar - 15 bar
Process temperature: -50 °C - 300 °C
Volumetric flow rate: 2 m³/h - 20000 m³/h

... Connections: DN50 … DN1000 Orifice plate mounted between flanges Flowmeter fittings threaded, flanged or solvent weld socket Pressure inlets ¾” BSP

positive displacement flow meter / differential pressure / for air / for flue gas
positive displacement flow meter
D-FL 100

Process temperature: -20 °C - 450 °C

... -tested and certified impact pressure system to measure velocity and volume flow of dry flue gas or process gas in pipes or ducts. In situ measurement, continuous measurement Allows ...

differential pressure flow meter / Venturi / for liquids / insertion
differential pressure flow meter

The Venturi Differential Pressure Flow Meter is made from A105 and steel and stainless steel. Special materials can be availed upon request. The sizes available are 3"~42" and the beta ...

differential pressure flow meter / for oil / for gas
differential pressure flow meter
FCS510

Key Features - Derivative of the proven FCO752 Flow Measurement instrument - Built in automatic pressure control - Direct correlation to Harmonised standards - Product specific parameters ...

flow meter with pressure measurement / differential pressure / with battery / electronic
flow meter with pressure measurement
FCS523

... the need for a separate flow meter and pressure / vacuum gauge, reducing footprint and simplifying the pneumatic circuit as the pressure / vacuum sensor is internally ...

differential pressure flow meter / for gas / digital / with integrated pressure regulator
differential pressure flow meter
FCO752

Volumetric flow rate: 0 l/min - 20000 l/min

... It is a differential pressure flow meter, with an air and gas flow range from 0.01 ml/min to 10,000 l/min. It also has an automatic pressure and temperature ...

differential pressure flow meter / for gas / economical / with integrated pressure regulator
differential pressure flow meter
FCO732 series

Volumetric flow rate: 0 l/min - 10000 l/min

... castings, fuel pumps, etc. It has a clear blue back-lit display, and pressure control. The air and gas flows from 0.01 ml/min to 10,000 l/min. The FCO732 is a versatile and dependable flow ...

differential pressure flow meter / Venturi / for liquids / in-line
differential pressure flow meter
LG series

Process pressure: 600000 Pa - 42000000 Pa

... supply field, gas transmission field etc. Venturi tube is high accuracy, performance stable, low pressure lost (normally is 5% ~ 20% of differential pressure) and easy to maintain. Especially ...

differential pressure flow meter / pitot tube / for gas / for air
differential pressure flow meter
MultiTrak™ 670S

Process temperature: 0 °C - 400 °C

... visualize and store flow data, as well as set up the individual sensor points Entire system to be easily configured in the field HMI integrates the following functions: Mass flow rate ...

differential pressure flow meter / for gas / for air / clamp-on
differential pressure flow meter
6700

Process pressure: 70000 Pa - 130000 Pa

The model 6700 is a handheld micromanometer with Bluetooth® wireless capability; it takes airflow and pressure readings with a pitot tube or the optional velocity grid. The grid is a cross shaped grid, similar to the ...

differential pressure flow meter / pitot tube / for gas / for air
differential pressure flow meter
DSV-Round

The DSV by Eastern Instruments is a Multi-point Pitot air and gas flow meter which retains all features in the VAP3 pitot. The DSV for round ducts makes installation of the integral air flow ...

heated pitot tube flow meter / differential pressure / for air
heated pitot tube flow meter
VAP3®/IHP

... Our Integral Heated Pitot utilizes the original VAP3® Pitot technology by providing an accurate differential pressure output, that allows for precise air flow measurement and control of your process. ...

differential pressure flow meter / for liquids / in-line
differential pressure flow meter
7000, 8000 series

Process pressure: 10 psi - 400 psi
Process temperature: -62 °C - 177 °C
Volumetric flow rate: 4 us gal/h - 180000 us gal/h

... Solutions is a line of flow meters with optional outputs. It is applicable for measuring the flow rate of liquids, gases, compressed air and steam in closed pipes. Clark Solutions ...

differential pressure flow meter / for gas / for air / clamp-on
differential pressure flow meter
Fluke 922

Process pressure: -4000 Pa - 4000 Pa
Process temperature: -40 °C - 60 °C
Volumetric flow rate: 0 m³/h - 100 m³/h

... Fluke 922 micromanometer is designed to provide HVAC technicians with a powerful airflow analyzer tool as it combines differential pressure, airflow, and velocity measurement tools in a single rugged ...

differential pressure flow meter / pitot tube / for gas / for air
differential pressure flow meter
DSK1000

Process temperature: -128 °C - 400 °C

... incorporates integral flow straighteners. This pitot averaging gas/air flow measuring station is able to offer straight run to the equivalent of 7 to 9 diameters while eliminating turbulence effects. The ...

differential pressure flow meter / orifice / for liquids / flange
differential pressure flow meter
OP/PE/TE series

Process pressure: 0 psi - 150 psi
Process temperature: 0 °C - 60 °C

Dwyer's OP Series of orifice plate flowmeters is a comprehensive line of flow metering instruments. They are manufactured out of a stainless steel material, and incorporate a novel carrier or holder ring ...

differential pressure flow meter / orifice / for air / in-line
differential pressure flow meter
DTFF series

Process pressure: 0 bar - 200 bar
Process temperature: -22 °F - 200 °F
Volumetric flow rate: 0 m³/h - 0.15 m³/h

... also ensures good compatibility with various projects. The maximum operating pressure is 206.7 bar (3000psig), while sensitivity is not sacrificed. There are various flow rates available, and the ...

differential pressure flow meter / for air / clamp-on
differential pressure flow meter
PG 2, PG 6 series

Process pressure: 0 psi - 300 psi
Process temperature: 0 °C - 113 °C

... 5, and 6 Differential Pressure Meters are kits designed to measure differential pressures on flow measurement valves and flow measurement ...

differential pressure flow meter / for water / clamp-on
differential pressure flow meter
PG-8 series

Process pressure: 0 psi - 500 psi
Process temperature: 0 °C - 113 °C

... PG-8 Differential Pressure Meters are kits designed to measure differential pressures on flow measurement valves and flow measurement ...

How to choose this product

differential-pressure-flow-meter

A differential pressure flow meter uses a pressure-reducing orifice to create a difference between upstream and downstream pressure. According to Bernoulli's law, the volumetric flow is proportional to the pressure gradient.

Applications

This is the most common of all flow meters in water treatment plants and in the chemical, petrochemical and gas industries.

Technologies

Diaphragm, venturi and nozzle are the three primary types of differential pressure flow meters. They are designed in accordance with recognized flow/pressure ratio standards (ISO 5167 in Europe). They use a differential pressure unit linked to an upstream and a downstream sensor. A signal transmitter and a calculator send the reading to a display or to a control mechanism.

The diaphragm version is the most common, but it cannot be used with turbid liquids because particles tend to accumulate at its base, leading to significant energy losses. Nozzle and venturi meters use a progressive constriction. The former has an abrupt exit point, while the latter uses a gradual configuration. They are better able to measure the flow of slurries and viscous liquids. Venturis are accurate, show little energy loss and reduced wear and dirt build-up. However, they are expensive and bulky.

Pitot tubes, target and U-bend flow meters use similar principles of operation.

How to choose

Choice will depend on the nature of the fluid, available upstream and downstream space and energy loss.

Advantages

- Standardized parameters
- Simple maintenance

Disadvantages

- Energy loss
- Limited rangeability