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Red Seal Measurement PD/
Oscillating Piston Meters

Red Seal Measurement systems are specially designed to provide unsurpassed service in the most demanding measurement applications, from refined fuel custody transfer to exacting batching operations in the food and chemical industries. Whether the job calls for a positive displacement meter with a legacy of proven performance, or a state-of-the-art Coriolis mass flow meter with enhanced accuracy and sensitivity, Red Seal Measurement metering systems will protect your trust… and your profits.

Red Seal Measurement is proud to offer the Neptune product line. Because we’re confident that our meters are the best in the business, we’re extending the warranty on all of our positive displacement meters to three years from the date of installation (or 42 months from date of shipment).

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Neptune 4D-MD Meter for LPG Dispensers

The Neptune 1″ Type 4D-MD meter has been specifically designed for the custody transfer of Liquefied Propane and Butane gas (LPG). This meter utilizes the oscillating piston positive displacement principle.
The standard 4D-MD meter comes with:
  • Base meter choice of 600 series mechanical totalizing register with resettable counter, 800 series mechanical printer register, Veeder Root mechanical register, E1000 electronic register or MidCom MCR09 electronic register
  • Differential control valve combination vapor eliminator/strainer
  • Continuous bleed pressure relief valve
  • Choice of pulse output for remote totalizing
Available with Automatic Temperature Compensator (ATC)
Type 4D-MD Features:
  • Accuracy and reliability in compact package
Oscillating piston with hard, low friction Nituff Teflon impregnated coating for long life
  • Smooth performance at low flow and high operating pressures
  • Rugged outer body components
  • Compact design
  • Suitable for a wide variety of installation configurations.

Download Product Documents Below

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