Chemical Injection Flow Meter

A chemical injection flow meter is a critical instrument in precise dosing systems where high pressure, low flow measurement is mandatory. Our chemical injection flow meter range is based on oscillating piston positive displacement technology, purpose-built for accuracy, repeatability, and reliability in demanding industrial environments.

Unlike inferential meters, a chemical injection flow meter directly measures actual volumetric flow, making it ideal for additive injection flow meter duties and drilling rig flow measurement where even minute deviations can compromise process integrity. With pressure ratings of 250 bar and above, and ultra-low flow capability down to 0.5 LPH, our meters are engineered for precision chemical dosing applications.

Core Information

The chemical injection flow meter is configured around an oscillating piston mechanism, a proven form of positive displacement measurement. Each oscillation of the piston corresponds to a fixed, known volume, enabling direct and highly accurate flow measurement independent of fluid properties.

This configuration allows the chemical injection flow meter to perform reliably in high pressure, low flow conditions commonly seen in additive injection flow meter systems and drilling rig flow measurement skids. Compact construction enables installation in confined spaces without sacrificing metrological performance.

Available sizes start from DN06 (1/4”), making the chemical injection flow meter suitable for extremely low injection rates, with flow measurement capability as low as 0.5 liters per hour. This configuration is particularly valuable where precise chemical dosing directly impacts product quality, corrosion inhibition, or process safety.

  • The primary advantage of an oscillating piston based chemical injection flow meter is measurement certainty. Since the meter physically displaces fluid, accuracy remains stable even when viscosity, pressure, or temperature fluctuate.
  • For additive injection flow meter applications, this means consistent dosing without recalibration. In drilling rig flow measurement, it ensures reliable chemical delivery under pulsating pressures and intermittent flow conditions.
  • Additional benefits of the chemical injection flow meter include exceptional repeatability, minimal pressure drop, and long-term stability, even in continuous high-pressure service.

Our chemical injection flow meter range is engineered for extreme service conditions while maintaining compact form factors.

  • Oscillating piston positive displacement design
  • Accuracy suitable for high pressure, low flow applications
  • Pressure ratings of 250 bar and above
  • DN06 (1/4”) size available for ultra-low flow measurement
  • Flow measurement capability down to 0.5 LPH
  • Compatibility with aggressive and specialty chemicals
  • Mechanical and electronic output options
  • Long service life with minimal maintenance

These features make the chemical injection flow meter an ideal choice for both additive injection flow meter systems and drilling rig flow measurement installations.

Applications

The chemical injection flow meter is widely used across industries that demand accurate, low-flow chemical dosing.

Additive injection flow meter systems for lubricants, corrosion inhibitors, and catalysts

Drilling rig flow measurement for chemical dosing in upstream oil and gas

Methanol and glycol injection skids

Biocide and scale inhibitor injection

High-pressure test benches and calibration systems

FAQ’s

What is a chemical injection flow meter?

A chemical injection flow meter is a precision instrument used to measure very low flow rates of chemicals under high pressure. Oscillating piston based chemical injection flow meters provide direct volumetric measurement with high accuracy.

Positive displacement flow meters, especially oscillating piston types, are commonly used due to their accuracy in high pressure, low flow chemical injection applications.

Yes. Chemical injection flow meters can be manufactured using compatible materials like Hastealloy, Inconel, Monel or Alloy C22 to safely handle corrosive and aggressive chemicals.

Chemical injection flow meters can measure from as low as 0.5 LPH up to higher controlled flow ranges, depending on size and configuration.

Yes. Chemical injection flow meters can be supplied with pulse, analog, or digital outputs for integration with control and monitoring systems.