1″ – 3″ High Pressure Liquid or Gas Turbine Flow Meter

The INVALCO 1″- 3″ High Pressure Liquid or Gas Turbine Flow Meter is a unique one-piece cartridge design which enables replacement of turbine meter internals with minimal downtime. The rotor assembly rotates on ball bearings and is supported by a fixed shaft design. The meter was designed to operate within pressures from vacuum to 15000 psi. Replacement cartridges are fully calibrated and are ready for installation with no special tools required. By simply removing the union seal and the slide in cartridge retainer, the internals slide out of the body.


Maximum Overrange125% of flow range for intermittent periods
Frequency Output100 to 1100 Hz
Voltage OutputApproximately 100 mV A100 Hz to 1.5 V (RVS) @ 1,000 Hz
Pressure Drop0.5 to 0.75 psi at 100% of full range.
Pressure RatingPSI (kPa) (602,1002,1502)
1″ – 3″ 1502 Ended TFM …….15,000(103,000)
InstallationVertical or horizontal (any direction)
Materials of ConstructionBody: 4340 100ksi yield -20°F
Rotor: CD4MCu
Rotor Shaft: 316 Stainless Steel
Bearing: 316SS shielded 440SS balls and races
Supports: 316SS
Cartridge retainer: 8620 for improved wear.
Temperature Range-20°F through 250°F
Pickup Coil (order separately)DC Resistance: 975Ω
Inductance: 400 mH
Mating Connector: 10SL-4S or Wire Leads
Preamp Magnetic Pickup (Order Separately)
Housing: Stainless steel
Power RequirementsSupply voltage: +4.5 to 28Vdc
Current: ≤ 5mA @ 12 Vdc
Output SignalSquare wave
0 to supply voltage, 5 Hz to 12 kHz
30% to 70% Duty cycle
NPN with 10Kw pull-up to supply voltage
Mating Connector10SL-3P or Wire Leads


More Information

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