Positive Displacement Flowmeter

The Positive Displacement Flowmeter is a highly accurate and dependable device that measures volumetric flow by physically trapping fluid in precision-machined compartments and counting the cycles of displacement. Ideal for viscous fluids, lubricants, fuels, and other clean liquids, PD flowmeters are commonly used in oil & gas, chemical, food & beverage, and pharmaceutical industries. They offer precise flow measurement without the need for a power supply, making them ideal for custody transfer and batching applications.

Measurement Principle: Mechanical displacement of fluid volume using gears, pistons, or lobes
Direct volume measurement – high accuracy independent of fluid properties
Handles high-viscosity media such as oils, syrups, and fuels
No straight pipe run required – suitable for tight installation spaces
Excellent repeatability for batching and custody transfer applications
Mechanical versions require no power supply
Optional pulse or analog output for connection to displays or controllers
Bidirectional measurement capability (model dependent)
Compact and rugged design for both portable and fixed installations
Low maintenance with simple mechanical parts

Parameter	Specification
Pipe Size Range	DN4 to DN300 (depending on type)
Flow Range	0.5 L/h to 30,000 L/h (model dependent)
Accuracy	±0.1% to ±0.5% of reading (depending on model)
Repeatability	±0.05%
Viscosity Range	Up to 1,000,000 cP (depending on model)
Operating Temperature	-40°C to +200°C (special versions available for higher ranges)
Operating Pressure	Up to 100 bar (model dependent)
Output Options	Pulse, 4–20 mA, totalizer, Modbus (with electronic transmitter)
Power Supply (Electronic Models)	3.6V battery, 12–24V DC, or loop-powered
Construction Materials	Aluminum, SS304, SS316, Bronze, PPS, Teflon, etc.
Ingress Protection	IP65 / IP67 / IP68 (depending on enclosure)
Certifications	CE, ATEX (optional), ISO 9001
Mounting Orientation	Horizontal or vertical (as per flow direction)

Get In Touch

For Any Query

Location

Ecotech III, Greater Noida,

Phone

+91-9266153037

Email

sales@imtbengineers.com

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Positive Displacement Flowmeter