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mass flow meter / thermal / positive displacement / differential pressure
mass flow meter
FMA-1600A series

Process pressure: 5 psi - 145 psi
Process temperature: -10 °C - 50 °C
Volumetric flow rate: 1 l/min - 3,000 l/min

... high-quality flowmeters that make use of the differential pressure principles in order to determine their mass flow rate. The operating principle for these devices is ...

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 flow meter / for oil / for fuel / stand-alone
differential flow meter
DFM-100D-K

Process pressure: 2 bar - 25 bar
Process temperature: -40 °C - 80 °C
Volumetric flow rate: 2 l/h - 100 l/h

The fuel flow meter of Mass Flow online measures the differential fuel utilization of vehicles, where if is possible to utilize the single-chamber fuel meter. ...

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Mass Flow ONLINE BV
differential flow meter / for oil / for fuel / compact
differential flow meter
DFM-250D-K

Process pressure: 2 bar - 25 bar
Process temperature: -40 °C - 80 °C
Volumetric flow rate: 50 l/h - 250 l/h

The wired 250 L/H Differential Fuel Flow Meter from Mass Flow is adept at measuring the varied fuel consumption in assorted vehicles, given situations where using single-chamber ...

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Mass Flow ONLINE BV
differential flow meter / for oil / for fuel / compact
differential flow meter
DFM-500D-K

Process pressure: 2 bar - 25 bar
Process temperature: -40 °C - 80 °C
Volumetric flow rate: 10 l/h - 500 l/h

Mass Flow's fuel flow meter calculates the fuel consumption of vehicles. A two three-dimension ring type chambers are provided in this meter. The chambers are responsible ...

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Mass Flow ONLINE BV
variable-area flow meter / differential pressure / for water / for air
variable-area flow meter
RAKD

Process pressure: 100 bar
Process temperature: -25 °C - 250 °C
Volumetric flow rate: 0.1 l/h - 8,000 l/h

... added to these meters. Of the various options available with the device, one is an built-in flow controller using the principle of differential pressure. ...

differential pressure flow meter / orifice / for gas / compact
differential pressure flow meter
OriMaster FPD500

Process pressure: 100 bar
Process temperature: -20 °C - 230 °C

... Orimaster, one for volumetric flow and one for mass flow. It has an integrated DP flow measurement system that combines primary element with DP transmitter in a single flow ...

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

Process pressure: 0 bar - 10.34 bar
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 - 0.2 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 / 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 / pitot tube / for gas / for steam
differential pressure flow meter
deltaflow DF8

Process pressure: 0 bar - 690 bar
Process temperature: -200 °C - 1,240 °C

... even under extreme conditions. Averaging pitot tubes are causing the lowest pressure loss of all dp-flow meters and are therefore highly energy efficient. The deltaflow has been installed ...

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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 - 1,240 °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 - 1,240 °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 / 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 - 20,000 m³/h

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

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

Process pressure: 6,000 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 ...

flue gas flow meter / positive displacement / differential pressure / for air
flue gas 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 ...

rotary piston flow meter / differential / positive displacement / for fuel
rotary piston flow meter
DFM D (display + output signal: CAN, RS232, RS 485 or pulse)

Process pressure: 2 bar - 25 bar
Process temperature: -40 °C - 80 °C
Volumetric flow rate: 10 l/h - 600 l/h

... , 6 engines with CommonRail fuel injection system and analogs. DFM D differential fuel flow meter is a tool for direct fuel consumption measurement, the data from the flow ...

rotary piston flow meter / differential / positive displacement / for fuel
rotary piston flow meter
DFM D (with display, autonomous)

Process pressure: 2 bar - 25 bar
Process temperature: -40 °C - 80 °C
Volumetric flow rate: 1 l/h - 500 l/h

... fuel injection system and analogs. DFM D differential fuel counter is an autonomous tool for direct fuel consumption measurement, which can be used without additional devices for data logging. The ...

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 ...

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

Volumetric flow rate: 0 l/min - 20,000 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 ...

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

Volumetric flow rate: 0 l/min - 10,000 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 ...

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Furness Controls
micro-flow flow meter / differential pressure / for water / for oil
micro-flow flow meter
PFS-V3

Process pressure: 0 bar - 4 bar
Process temperature: 10 °C - 40 °C
Volumetric flow rate: 0 m³/h - 0.1 m³/h

Pressure drop The Pulsed Flow Sensor (PFS) is a small volume flow sensor, based on the elementary principle of a pressure drop over a restrictor in a flow ...

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

Process pressure: 600,000 Pa - 42,000,000 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
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 / Venturi / for liquids / low-pressure
differential pressure flow meter

• Classical Venturi Tubes - used on applications where a low permanent pressure loss is required • Can be used on clean and dirty fluid in line sizes from 1” to 60” • Calculation, design and manufacture ...

differential pressure flow meter / for liquids
differential pressure flow meter
Gemini

Gemini The Preso Gemini differential pressure flow meter has a cone-shaped element that shapes the flow profile ahead of the differential pressure ...

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

Process pressure: -4,000 Pa - 4,000 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 / for air / digital / with display
differential pressure flow meter
DPT-Flow-Batt

Process pressure: 2,000 Pa
Process temperature: -10 °C - 50 °C
Volumetric flow rate: 0 m³/h - 200,000 m³/h

... measurement probe. Usage 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 ...

differential pressure flow meter / for water / IP67
differential pressure flow meter
720

Process temperature: 0 °C - 71 °C

... and uses a differential pressure transducer to measure the level of the flow stream. The 6712 Sampler then converts this depth measurement into flow rate. The probe's venting system automatically ...

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

Process pressure: 0 bar - 20.68 bar
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 ...

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Watts Water Technologies

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