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.
- 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)
General information
| Product type | Flowmeter |
| Product family name | VA |
| Product positioning | For basic applications |
| Measurement principle | Variable area float |
| Measured media | Liquids, Gases |
Operating conditions
| Process pressure | max. 10 barg/ 145 psig |
| Process temperature | 0…+100°C/ +32…+212°F |
Materials
| Measuring tube | Borosilicate glass |
| Gaskets | Ethylene propylene diene monomer (EPDM), Perfluoroelastomer rubber (FFKM), Fluoroelastomer rubber (FPM), Nitrile butadiene rubber (NBR) |
| Process connection | Austenitic stainless steel (1.4404/316L), Polyvinylidene fluoride (PVDF), Chromised steel |
Process connections
| Flange connections | EN (1092-1): DN15…50 ASME (B 16.5): ½…2″ |
| Thread connections | Female: G½, G¾, G1, G1½, G2 ½ NPT, ¾ NPT, 1 NPT, 1½ NPT, 2 NPT |
| Other connections | Hose: DN15, DN25, DN40, DN50 |
| Hygienic connections | Clamp (DIN 32676): DN15, DN25, DN40, DN50 Clamp (ISO 2852) 17.2, 25, 40, 51 Tri-Clamp: ½”, 1″, 1½”, 2″ Threaded ferrule (DIN 11851): DN15, DN25, DN40, DN50 Threaded ferrule (SMS 1146): 25 mm, 38 mm, 51 mm |
Approvals/Standards
| Certificates/Approvals Ex | ATEX, UKEX |
| Certificates/Approvals Hygienic | FDA |
| Certificates/Approvals Nuclear | Nuclear qualification on request (e.g. acc. to ASME III, RCC-M/E, etc.) |
| Certificates/Approvals Safety | SIL 2 |
Communication
| Analogue outputs | 4…20 mA |
| Discrete outputs | Limit switches |
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
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