ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)

Product catalog summary

Introduction
VAF Instruments ProFlow sliding vane meters are designed for precise measurement of oil-like liquids, particularly fuel oil consumption. These meters feature a robust design with minimal moving parts, ensuring longevity and reducing maintenance needs. They operate without mechanical seals, preventing leaks and are powered by the process liquid, making them suitable for remote locations.

Experience in Flow Measurement
Since 1938, VAF Instruments has been innovating in flow measurement, offering meters ranging from 8 mm to 300 mm. ProFlow meters cover the mid-range, with sizes from 15 mm to 50 mm and flow capacities from 50 l/min to 500 l/min.

Available ProFlow Flowmeters
ProFlow meters are available in various sizes and can be equipped with digital totalisers and pulse transmitters for liquid registration.

Principle of Operation
The meters operate on the sliding vane principle, with a rotor and vanes creating a seal between the inlet and outlet. The rotor's movement is transmitted to an electronic counter, with optional pulse output for remote data processing.

Features & Benefits

High capacity and rangeability for diverse flow rates.
High accuracy (±0.2%) and repeatability (±0.05%).
Simple design for easy servicing and low operational costs.
Compact design requiring no straight pipe sections.
Constructed to CE standards and ISO 9001 certified.

Technical Specifications
ProFlow meters are available in various models with different connection sizes and capacities. They are made from durable materials like ductile iron and carbon, with a pressure rating up to 4000 kPa. They operate within a temperature range of -10˚C to 125˚C, extendable upon request.

Applications
These meters are ideal for measuring fuel consumption, oil injection, hydraulic fluid movement, and viscous fluid measurement at low flow rates.

Options and Accessories
ProFlow meters can be equipped with liquid filters and electronic signal processing instruments. They come with built-on totalisers and optional pulse transmitters.

Dimensions
Dimensions vary by model and connection type, with detailed measurements provided for integration into systems.

Quotation & Ordering Information
For selecting the appropriate meter, details such as liquid type, flow rate, pressure, temperature, and specific gravity are required. Additional options include pulse transmitters and special certifications.

Catalog excerpts

ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-1

ProFlow Sliding Vane Meters DN 15-50 (½”- 2”) Product Bulletin

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ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-2

VAF Instruments ProFlow positive displacement sliding vane type liquid flowmeters are used in continuous metering applications of oil-like liquids, especially for accurate measurement of fuel oil consumption. ProFlow flowmeters have a simple, rugged design. With only few almost frictionless moving internal parts there is hardly any wear in the flowmeter which safeguards a typical long lasting lifetime. ProFlow meters have no mechanical seals saving you from regular maintenance and possible leakage of process liquids into the environment. The flowmeter is driven by the process liquid which makes...

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ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-5

Flow ranges To select the appropriate meter size for your process the graphs must be used. The data in these graphs only refer to standard flowmeters used on Newtonian liquids. Consult VAF Instruments for viscosities higher than shown in the graphs. Lower minimum capacities are possible dependent on liquid viscosity and required measuring accuracy. 40 30 50 60 Percent Of Maximum Flow Pressure Drop Pressure Drop Flowrate - pressure drop viscosity relation 40 50 60 Percent Of Maximum Flow Pressure Drop 40 50 60 Percent Of Maximum Flow

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ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-6

Options and accessories Liquid filter The process liquid must be clean and free from air, gas or dirt. Solid particles may cause excessive wear. It is recommended to install a liquid filter with a suitable mesh width. If necessary also install an air vent. Electronic signal processing instrumentation A complete range of electronic signal processing instrumentation is available. Built-on Totaliser ProFlow flowmeters are equipped with a built-on totaliser. See tables for counter reading units and combinations of totaliser and pulse output. Consult VAF Instruments for special counters and pulse...

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ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-7

Dimensions apply to flowmeters with DIN flanges. Dimensions of flowmeters with other pressure ratings are available on application. All dimensions are in millimeters. Meter type

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ProFlow Sliding Vane Meters DN 15-50 (½”- 2”)-8

All copyrights reserved | Publ. No. PB-142-GB-0414 | Supersedes Publ. No. PB-142-GB-0813 Quotation & ordering information For proper selection of the suitable ProFlow meter the following data should be determined: Liquid data: 1. Process liquid (trade name or chemical composition): 2. Flowrate [l/min] minimum: 3. Operating pressure range [bar]: allowable pressure drop [bar]: 4. Operating temperature range [˚C] process liquid: 5. Specific gravity at operating conditions: Flowmeter data: 6. Basic model number: 7. Diameter liquid piping: 8. Connection flanges: 10. Optional pulse transmitter (see...

Open the catalog to page 8

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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