Gentec FM187BS-15L-SISR-SIS Air Flowmeter

The Gentec FM187BS-15L SISR is a medical air flowmeter calibrated to 15 L/min nominal flow with a 16-18 L/min restricted full-scale ceiling. Calibration pressure of 400 kPa, ¼-inch BSP male outlet, and a built-in safety relief valve make it suited to standard Australian clinical air-pipeline supply. Hose barb supplied for downstream connection to humidifiers, nebulisers, or ventilator tubing.

Key Features

• Medical air gas only — calibrated for air gas density.
• Maximum flow rate: 15 L/min.
• Full scale restricted to 16-18 L/min — prevents overshoot beyond clinical range.
• Outlet fitting: ¼" BSP male.
• Calibration pressure: 400 kPa.
• Built-in safety relief valve.
• Hose barb supplied for downstream connection.

Specifications

• Gas service: Medical air (not oxygen)
• Maximum flow: 15 L/min
• Restricted full scale: 16-18 L/min
• Calibration pressure: 400 kPa
• Outlet: ¼" BSP male
• Safety: Built-in relief valve
• Includes: Hose barb

Where to use it

Hospital wards and clinical settings with separate medical air pipeline supply, ambulance services with dual-gas (oxygen + air) systems, and any setup requiring blended-gas respiratory therapy. Match this flowmeter to your air pipeline's SIS outlet — and pair with the FM197BS oxygen flowmeter if you need both gases at the same bedside.

Frequently Asked Questions

What's "SISR"?
SIS-Restricted — the standard SIS connection with a flow restriction calibrated to 16-18 L/min full scale, preventing the flowmeter being driven outside its accurate range.

Why ¼" BSP outlet?
BSP (British Standard Pipe) is the common Australian clinical thread for downstream tubing connections. Use BSP-compatible humidifiers, nebulisers, and tubing.

Is this suitable for ventilator supply?
For low-flow respiratory therapy, yes. For high-flow ventilator supply, you may need a higher-capacity air flowmeter — confirm the ventilator's air-supply requirements.