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Precision That Endures

Like the Great Pyramids, the GPI Precision Series Flowmeters are engineered to last. Backed by superior engineering and a 2-year warranty — no other company stands behind their quality like GPI Control Instruments Co., Ltd.

Explore Products Learn Our Mission

The Company

GPI CONTROL INSTRUMENTS CO., LTD is a manufacturer of flow and pressure instruments. Headquartered in Kansas State, USA, it is a global professional manufacturer of fluid transportation and measurement.

Relying on its strong product R&D capability and complete flow meter production line and product test line, GPI delivers unmatched reliability and precision across industries. We regularly see meters return for yearly calibrations after more than 20 years of service — a testament to our engineering excellence.

GPI Manufacturing Facility

Engineered for Longevity

2-Year Warranty Guaranteed

GPI Flow Meter Technology

Trusted Worldwide

Over two decades of continuous operation

Our Precision Instruments

Explore our advanced line of flow and pressure measurement devices designed for industrial reliability, accuracy, and long-term performance.

GPMAGF100 Electromagnetic Flow Meter

GPMAGF100

  • Line Sizes: 1/4” to 120” (6–3000mm)
  • Flow Velocity: 0.1–12 m/s
  • Communication: Modbus, HART, Profibus-DP

High-accuracy electromagnetic flow meter for conductive liquids in industrial applications.

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GPMAGI200 Flow Meter

GPMAGI200

  • Type: Intelligent Electromagnetic Flowmeter
  • Features: Advanced diagnostics, self-calibration
  • Outputs: 4-20mA, pulse, digital communication

Next-generation flow meter with built-in intelligence for predictive maintenance and real-time monitoring.

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GPMAGE600 Energy Meter

GPMAGE600

  • Application: Electromagnetic energy meter
  • Medium: Conductive fluids
  • Functions: Flow + energy measurement

Ideal for HVAC and district heating systems requiring precise thermal energy monitoring.

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GPMCF Turbine Flow Meter

  • Use Case: Low-viscosity fluids
  • Accuracy: ±0.5% of reading
  • Materials: Stainless steel, Hastelloy options

Designed for precise measurement of instantaneous flow rates in fuel, solvents, and light oils.

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GPULT Ultrasonic Flow Meter

  • Type: Clamp-on, transit-time
  • Installation: Non-invasive
  • Pipe Compatibility: DN15 to DN6000

Perfect for retrofitting and temporary measurement without cutting pipes.

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GPST Vortex Flow Meter

  • Principle: Van Karman vortex shedding
  • Fluids: Gases, steam, liquids
  • Outputs: 4-20mA, pulse, HART

Robust design for high-temperature and high-pressure environments.

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GPPR Series Pressure Transmitters

  • Range: -1 to 10,000 psi
  • Accuracy: ±0.1% FS
  • Outputs: 4-20mA, digital protocols

Stainless steel construction for harsh industrial environments.

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GPMC Coriolis Mass Flow Meter

  • Measurement: Mass flow, density, temperature
  • Accuracy: ±0.1% of rate
  • Applications: Custody transfer, batching

Highest accuracy for critical process and financial transactions.

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Our Services

Supporting global industries with precision instrumentation and tailored solutions.

Chemicals & Commercial Fuels

Precision measurement for chemical processing and fuel distribution networks.

Aviation Fuels

Reliable flow control for jet fuel systems at airports and military bases.

Marine Fuels

Corrosion-resistant meters for bunkering and shipboard applications.

Liquefied Petroleum Gas

Safe and accurate measurement for LPG transfer and storage.

Global Impact

Trusted by industry leaders across continents.

26

Offices Worldwide

10,000+

Satisfied Employees

126

Refineries & Operations

35

Awards & Recognitions

Frequently Asked Questions

Find answers to common inquiries about our products and services.

What is the warranty period for GPI flow meters?

All GPI Precision Series flow meters come with a 2-year warranty, reflecting our confidence in long-term performance and durability.

Are your flow meters suitable for conductive liquids?

Yes, our GPMAGF100 and GPMAGE600 series are electromagnetic flow meters specifically designed for conductive media.

Do you offer non-invasive flow measurement solutions?

Yes, the GPULT series is a clamp-on ultrasonic flow meter that allows for non-invasive installation without pipe modification.

Can your instruments communicate with control systems?

Absolutely. Our meters support Modbus, HART, Profibus-DP, and other industrial communication protocols for seamless integration.

Where is GPI headquartered?

GPI CONTROL INSTRUMENTS CO., LTD is headquartered in Kansas State, USA, with global operations and support.

Get in Touch

Reach out to our global team for product inquiries, technical support, or partnership opportunities.

USA Office

+1-252-331-2886

Email Us

[email protected]

Global Support

Hong Kong & Shanghai Offices Available

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