Oval Gear Micro Flow Positive Displacement Meter (ALMGPD)

Oval Gear Micro Flow Positive Displacement Meter (ALMGPD)


Oval Gear Micro Flow Positive Displacement Meter (ALMGPD)


Sizes: ~" (3-15mm)

Accuracy: ±0.5% RD

Process Temperature: -22 ~ +180 °F (80°C)

Process Pressure: 14,000 psi (1000 bar)

Application: OEM

Styles: Micro-Oval Gear PD for extremely low flows and/or high pressures, very small sizes

Measuring range: 0.5 to 30,000 mLPM

Viscosity: up to 500 cP

Metering tube: SS #316 or Aluminum

Outputs & Electronics: Open collector square wave pulse

Connection: BSPF or NPTF

Process Medium: Small sizes and aggressive fluids, leak detection

The SMC Series ALMGPD Micro-count oval gear flow meters offer precise measurement with guaranteed accuracy and repeatability. Manufactured from 316 grade stainless steel with optional aluminum models for non-aggressive liquids, these positive displacement low-flow meters can measure liquids of varying viscosity and density with little or no effect on accuracy across a linear range.

A key feature of the oval gear principle of measurement is its extremely low-pressure loss and capacity to cope with pulsating flows. A high-resolution calibrated pulse output requiring DC power can be supplied or a remote LCD rate counter with optional pulse and 4-20mA re-transmission is available with the ALMGPD.


  • Compact and lightweight, suitable for OEM use
  • Reverse-flow detection and pulse multiplication functions
  • Ex-protection EExiaIICT6/T4
  • Resistance to high voltage from 50 kV up to 120 kV
  • Special meters with high-pressure connectors for service up to 690 barg (10,000 PSIG)
  • Heated versions are available on request
  • The K-factor (no. of pulses per liter) is nearly constant over a wide range.


Measuring Principle: Oval Gear Positive Displacement
Process temperature: up to 180 °F (80 °C)
Line size: ”~ ½”
Operating pressure: 465 psig (32 barq max) Up to 14,000/1000 bar – **For higher pressures, consult factory**
Accuracy: ±0.5% of reading
Body Material : SS# 316  (Standard) Aluminum (Optional)
Repeatability: ±0.5% of reading
Flow Ranges: See PDF Brochure, Page 2 of the Ordering Guide
Viscosity: >2300 SSU (500 cP) @ 1.0 S.G. recommended
Process Connections: ”~ ½” BSP or NPTF
Electrical Connection: Hirschmann DIN
Filtration: 200 Mesh Minimum (Upstream required)
Ambient Temperature: -4 to 122°F (-20 to +50°C)
Power Consumption: 50 mA Maximum
Power Supply : 4-26 VDC
Output: Open Collector square wave pulse

Refer to the link for more details: https://www.smartmeasurement.com/oval-gear-micro-flow-positive-displacement-meter/

 Inquiry - Oval Gear Micro Flow Positive Displacement Meter (ALMGPD)