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Aluminium mechanical fuel meter with four-bolt flange connections and twist-reset counter

GPI

GPI M30-G8N Mechanical Fuel Meter 19-114 L/min

SKU CH-SZ0V-3W234

Mechanical fuel meter measures 19 to 114 L/min with ±2% accuracy using a nutating disk and magnetic drive that eliminates leaks

  • Product typeInstallation Tools
  • UL and cULus safety rated for reliable operation
  • Magnetic drive eliminates leaks for long-lasting durability
  • Quick-fit four-bolt connections allow flexible mounting options
  • Simple twist-knob reset with clear four-digit display
  • Mechanical gear accuracy within +/-2% across 19 to 114 L/min

GPI M30-G8N Mechanical Fuel Meter

The GPI M30-G8N is a mechanical fuel meter designed for petroleum fuel measurement in flow ranges from 19 to 114 L/min. It uses a nutating disk and mechanical gears to deliver calibrated readings with a +/-2% accuracy across the specified range. The meter features a magnetic drive that eliminates the traditional driveshaft and seal to prevent leaks. Its aluminum housing carries UL and cULus safety ratings for durable field use.

Installation Checks Before Ordering

Verify that your pump system operates within the 19 to 114 L/min flow range to match the meter's calibrated accuracy. Confirm the connection type required; the unit is equipped with NPT and flange connections for threaded pump outlets or modular GPI products. Ensure the fuel type is compatible with fine-viscosity petroleum products only. The four-bolt modular design allows mounting in multiple directions for flexible system integration.

Suitable Users and Limitations

This meter suits operators needing a simple, resettable mechanical totaliser with batch and cumulative gallon displays for fuel transfer systems. The twist-knob reset and easy-read face support quick field operation without external power. Buyers who require digital output, data logging, or measurement of fluids other than fine-viscosity petroleum should look at alternative metering technologies. Those needing flow ranges outside 19 to 114 L/min will need a differently sized meter.

How it compares

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Price $257.99
Pricier than about 90% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeInstallation Tools

Questions about this item

What comes in the box with the GPI M30-G8N and what must be purchased separately to install it?

The meter itself is supplied; four-bolt connections are integral, so only compatible NPT or flange pipework and a pump in the 19–114 L/min range need to be sourced separately.

How do I choose between the gallon and litre versions of the M30-G8N?

The single model displays both a four-digit batch total and cumulative total in gallons while the flow range is also stated as 19–114 L/min, so no separate version choice is required.

What does the ±2 % accuracy figure mean when the meter is fitted to a real fuel system?

Across the 19–114 L/min flow range the mechanical nutating-disk gear train will read within ±2 % of actual throughput, provided the fluid is low-viscosity petroleum fuel and the pump stays within the 5–30 GPM window.

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