VA40

The VA40 is a glass tube variable area (VA) flowmeter for flow measurement of liquids and gases. The all-purpose flowmeter is suitable for all basic applications up to +100°C / +212°F and max. 10 bar / 145 psi. Typical applications include flow measurement of flushing, purging or inert gases or heating and cooling circuits.

The VA40 operates without auxiliary power supply. The measuring cone, protected by a metal sleeve with a viewing glass, makes it easy to directly read the flow and to observe the medium. The VA meter can also be equipped with two optional limit switches (MIN/MAX) or analogue output (4…20 mA). The flowmeter comes with many process connections and can be used in hazardous areas.

Product highlights

• Simple, low-cost measuring principle without auxiliary power
• For direct reading of the flow and observation of the medium
• Optional MIN/MAX flow switches (SIL 2 conform acc. to IEC 61508-2) or 4…20mA for recording and control
• Full scale value for liquids: 0.4…10,000 l/h / 0.1…2,650 GPH
• Full scale value for gases: 7…310,000 l/h / 0.25…11,000 SCFH
• Maximum measuring error: ±1% (acc. to VDI/VDE 3513-2) or ±1% of full scale
• Turndown ratio 10:1
• Use in hazardous areas
• Suitable for use in Safety Instrumented Systems with SIL 2, in redundant design (1oo2) also in SIL 3 applications (type A device)
• Available as food and pharmaceutical variant (with FDA compliant materials)

Typical applications

Machinery and apparatus (OEM industry)

• Air and cooling water supply
• Gas measurement for industrial furnaces and thermal processes
• Measurement of protective gases

Pharmaceutical industry

• Demineralised and ultrapure water, alcohol, solvents, insulin etc.

Food and beverage industry

• Air or water supply, alcohol, nitrogen, carbon dioxide (CO₂)

Conventional and nuclear power industry

• Water monitoring in auxiliary circuits