Reliable, fail-safe flow measurement for low-capacity liquids and gases
The McMenon A6 Variable Area Flowmeter is a dependable, low-capacity flow measurement solution engineered for both liquid and gas applications. Designed with simplicity, safety, and flexibility in mind, the A6 is ideal for laboratory settings, OEM systems, and low flow rate process applications in a wide range of industries.
Built around a compact, corrosion-resistant stainless steel body, the A6 combines robust performance with user-friendly features. The flow tube is secured with a quick snap-in construction, allowing for easy installation and maintenance, while a safety-tested operator protection shield provides peace of mind during use.
At the heart of the A6 is a clear glass flow tube, offering real-time visibility of the flow and allowing users to quickly and accurately assess flow rate. With a range of tube lengths and taper options, the A6 can be configured to suit a variety of process conditions and fluid types.
McMenon’s flexible approach to flow measurement means the A6 can be tailored to customer requirements, whether measured on a direct scale, corrected to standard or normal conditions, or as a ratio of float diameter to tube diameter along the tapered section. Each unit can be scaled and calibrated to meet the required accuracy class in line with VDI/VDE 3513 standards.
The A6 also supports additional functionality such as pressure and flow regulation through optional regulators and control valves, offering a cost-effective yet versatile solution for applications requiring reliable, visual flow monitoring.
Whether for bench top laboratory work or precise OEM integration, the McMenon A6 delivers fail-safe, precision-engineered flow measurement in a compact and economical package.
Sizing and selection is simplified by use of McMenon Solve, the ultimate tool for DP flowmeter sizing and more, used on-line
or off-line and available to download now

Special Features
- Tube diameter ranges from 1/8” to 1/4”
- Suitable for all transparent liquids and gases
- Accuracy classes from 2.5 to 10
- Rangeability ≥10:1
- Flow and pressure control available
- Safety tested shields
- Interchangeable parts
- High & low flow alarm
- High strength stainless steels & brass parts
- Easily installed
Applications
- Low flow application in laboratory or field
- Purging line
- Fluid sampling line
- Low specific gravity
- Low flow inert gas line
- Coolant flow
- Gas analysers
- Air or water