Oscillating Piston

  • Neptune Type 4D FlowmetersNeptune Type 4D Flowmeters
    1-1/2″ and 1-1/4″ Type 4D meters, with double case design, have been specifically designed for the custody transfer of Liquefied Propane & Butane Gas (LPG).
  • Neptune Type MP Oscillating Piston FlowmeterNeptune Type MP Oscillating Piston Flowmeter
    The Type MP Oscillating Piston Flowmeter provides high accuracy industrial liquids flow measurement.
  • Neptune 4-MT Petroleum Tank Truck MeterNeptune 4-MT Petroleum Tank Truck Meter
    The Neptune 2″ Type 4-MT is an excellent choice for truck mounted metering of liquid petroleum products. The 2″ aluminum body flowmeter comes complete and ready for installation and is ideal for both single and multi-meter applications.
  • Neptune 4D-MT LPG Tank Truck MeterNeptune 4D-MT LPG Tank Truck Meter
    The Neptune 2″ LPG meter is the worldwide standard for truck mounted metering. The aluminum body flowmeter comes complete and ready for installation…
  • Neptune 4D-MD Meter for LPG DispensersNeptune 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.
  • Neptune Type 4 FlowmetersNeptune Type 4 Flowmeters
    Neptune 1-1/4″ and 1-1/2″ Type 4 compact flowmeters are superb instruments for small and medium capacity tank truck metering.
  • Neptune Type 40 FlowmetersNeptune Type 40 Flowmeters
    Neptune 1-1/4″ and 1-1/2″ Type 40 flowmeters provide the accuracy and convenience you need in measuring refined petroleum products and allow you to control cost, loss prevention and invoicing.
  • Very Low Flow FlowmetersVery Low Flow Flowmeters
    VLF (very low flow) flowmeters have been designed to measure the flow of light fuel or diesel oil, for example, in applications such as measuring fuel oil consumption at large boiler plants, in a diesel engine generator and on engine test rigs.
  • Neptune Type 4 Size 3″ FlowmetersNeptune Type 4 Size 3″ Flowmeters
    Neptune 3″ compact flowmeters are superb instruments for metering large volumes of petroleum products when head loss must be kept to a minimum.