Flowmeters

Liquid Turbine Flowmeter

For clean liquid applications with stable flow conditions.

Liquid turbine flowmeters are used for clean liquids in stable flow conditions. Selection should confirm line size, connection type, viscosity, pressure loss and the required output signal.

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Velomac flanged liquid turbine flowmeter on clean background

Where It Is Used

Application Context

Used for clean liquid or process liquid lines where stable flow, pressure loss and media cleanliness matter.

Clean liquid transfer

Batching lines

Utility liquid monitoring

Process water lines

Liquid systems with stable flow

Selection Notes

Conditions to Confirm

A useful quotation starts with the real operating condition, not only the model name.

Media

Clean liquid, Water, Low-viscosity liquid

Flow range

Share minimum, normal and maximum flow before sizing.

Pressure / temperature

Confirm operating and design conditions.

Pipe size

Send DN, connection type and available straight pipe.

Installation condition

Note vibration, access limits, pipe layout and shutdown limits.

Output / signal

Confirm local display, 4-20mA, pulse, RS485 or other site needs.

Typical Applications

Related Site Conditions

Compare the product with nearby application scenarios before sending site details.

Conductive Liquid Measurement Chemical Process Lines Energy Loss Visibility

Available configurations

Flanged Liquid Turbine FlowmeterThreaded Liquid Turbine FlowmeterTri-Clamp Liquid Turbine FlowmeterInsertion Liquid Turbine Flowmeter

Clean liquid service

Suitable for clean liquid applications where flow is stable and the fluid will not damage the turbine rotor.

Connection options

Threaded, integral flanged, sanitary tri-clamp and insertion styles support different installation requirements.

Signal outputs

Pulse, 4-20mA, RS485 Modbus and GPRS options should be matched to site controls.

Before Quotation

What to Send

These details help Velomac recommend a suitable meter configuration and avoid a model-only quotation.

Fluid / media

Pipe size / DN

Flow range

Pressure

Temperature

Quantity

Installation details

Signal output

Related Resources

Selection Notes to Review

Flowmeter SelectionBefore You Ask for a Flowmeter Quote, Prepare These 8 Site DetailsRead article >

Technical Data

Data for Configuration Review

Liquid Turbine Flowmeter Technical Data

Parameter	Specification
Line Size (DN) and Connection	DN4-DN50 threaded; DN15-DN200 integral flanged; DN4-DN80 tri-clamp sanitary; >= DN150 insertion
Accuracy	In-line: +/-1.0%, +/-0.5%, +/-0.2% of reading; insertion: +/-5.0%, +/-2.5%
Turndown Ratio	1:10 to 1:20
Wetted Parts Material	Stainless steel 304/316; other materials customizable on request
Process Temperature	-20 deg C to 80 deg C, 120 deg C or 200 deg C
Ambient Conditions	Temperature: -20 deg C to 60 deg C; relative humidity: 5% to 90%; atmospheric pressure: 86 to 106 kPa
Connection Standards	Flange: GB9113 standard; thread: BSPT male thread standard
Output Signal	3-wire pulse; 2-wire analog 4-20mA; RS485 with Modbus protocol; wireless GPRS
Power Supply	6-24V DC; battery-powered: 3.6V lithium battery
Transmission Distance	<= 1000m
Cable Entry	M20 x 1.5
Hazardous Area Approvals	Standard: non-Ex; flameproof: Ex d IIC T2-T6; intrinsically safe: Ex ia IIC T2-T6
Enclosure Rating	IP65

Selection note: Confirm final configuration against media, flow range, pressure, temperature and site details.

Liquid Turbine Flow Range

Line Size (DN)	Standard flow range (m3/h)	Extended flow range (m3/h)	Max pressure loss (MPa)
4	0.04-0.25	0.04-0.4	0.12
10	0.2-1.2	0.15-1.5	0.05
25	1-10	0.5-10	0.035
50	4-40	2-40	0.025
100	20-200	10-200	0.025
150	30-300	15-300	0.025
200	80-800	40-800	0.025

Selected flow ranges are shown for orientation. Final sizing depends on media, flow range, pressure, temperature and site details.

Selection support

Send site details for a better recommendation.

Share the fluid, pipe size, flow range, pressure, temperature, quantity, installation details and signal output needs.

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