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Gn Flow Meter is a leading manufacturer of microfluidic measurement and control instruments.

P5 Series Miniature Oval Gear Flowmeter

You're mixing resin. You're dosing paint. You're feeding a reactor.

One wrong flow reading – and the whole batch is scrap.

Not because the pump failed. Not because the pressure dropped.

Because your flowmeter couldn't handle the viscosity.


Stop Guessing. Start Metering.

Most flowmeters lose their nerve when the fluid gets thick. Turbine meters slow down. Electromagnetic meters choke on non-conductive media. Ultrasonic meters give up on paint.

The P5 doesn't care.

It's a positive displacement oval gear meter. It measures by trapping fixed volumes – not by flow velocity, not by conductivity, not by sonic reflection.

Viscosity changes? Temperature swings? Intermittent flow?
The P5 reads them all the same. Because it measures volume, not speed.


Built for the Fluids That Break Other Meters

Your Fluid Why Others Fail Why P5 Works
Polyurethane resin Gets thicker as it cures – turbine meters lose accuracy Positive displacement – viscosity has zero effect
Paint and coatings Contains pigments – clogs turbine blades, fouls sensors Oval gears – self-wiping action keeps them clean
Adhesives and sealants Stringy, non-Newtonian – ultrasonic can't penetrate Mechanical metering – doesn't rely on signal reflection
Heavy oil Too thick for electromagnetic, too slow for turbine High-torque gear design – handles it effortlessly

What You Get

Feature What It Means for You
5~5000 L/min One meter covers pilot lines and production lines
0.5% accuracy Every batch consistent – no over-dosing, no under-dosing
All-stainless (PSS) No corrosion, no swelling, no degradation from solvents
8 bar rating Handles pump pulsation and system backpressure
5~26 VDC Direct to PLC – no extra power supply needed
-40~80°C Works in cold storage, works in hot reactors
Miniature footprint Fits into tight skids where others won't

What Others Don't Tell You

  • "Low pressure drop" – means your pump works less, your energy bill drops, and your system runs cooler.

  • "Low noise" – means no high-frequency whine. Your operators will thank you. Your neighbors will too.

  • "Intermittent measurement" – means even when the pump stops and starts, the totalizer keeps counting. Every drop. Every time.


Three Reasons You'll Sleep Better

  1. No recalibration – Stainless gears don't wear. What you set on day one stays true on day 1,000.

  2. No surprises – When viscosity spikes, the P5 doesn't drift. It just keeps reading.

  3. No second-guessing – Your batch data is real. Not estimated. Not corrected. Real.


Quick Specs

Parameter Value
Model P5
Accuracy 0.5%
Flow Range 5 ~ 5000 L/min
Max Pressure 8 bar
Material PSS (housing + gears)
Temp Range -40 ~ 80°C
Power 5 ~ 26 VDC

Where It Goes

  • Polyurethane foam production – precise isocyanate/polyol ratio control

  • Paint and coating manufacturing – pigment and binder dosing

  • Chemical batch reactors – additive injection and monitoring

  • Lubricant blending – viscosity-independent measurement

  • Adhesive and sealant filling – consistent shot sizes


One Question

Would you rather trust a signal – or trust a gear?

Signals can drift. Sensors can foul. Electronics can fail.

Gears just turn. And every turn is a fixed volume. No math. No interpretation. No excuses.


Stop managing flowmeter failures. Start managing your process.

Contact us for sizing, configuration options, and fast delivery.

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Shanghai Cixi Instrument CO.,LTD was founded in 2008 and is located in Shanghai Songjiang industrial park. We are the professional flow meter manufacture who integrate R&D, production and sales as one manufacturers.
Contact Us
Contact person: Kenny Shao
Contact phone number: +86 18930647859
WhatsApp: 86 18930647859
Company address: Room 402 Shuangzi Building B, Caohejing Hi Tech Park, No. 650 Xin Zhu Road, Songjiang District, Shanghai, China Zip code: 201601
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