Steam flowmeters and flow measurement
Spirax Sarco steam flowmeters and flowmetering solutions help industrial sites measure saturated steam, superheated steam, gases and liquids with the accuracy and operating visibility needed for process control, energy management and system optimisation.
This product family brings together three practical selection paths: target flowmeters for steam-focused duties, Gilflo and ILVA variable area meters for wide load variation, and flow computers or transmitters for installations that need mass flow, totalisation or energy data.
In simple terms, choose TFA when you need economical saturated steam metering in smaller line sizes, TVA when you need broader steam visibility in constrained pipework, and Gilflo or ILVA when wide turndown and low-flow performance matter more than a basic point reading.
Overview
Industrial flowmetering matters because a better meter does more than report flow. It helps teams verify process demand, allocate utility cost, identify waste and make steam-system optimisation work easier to defend internally. The first selection question is the fluid. This range covers saturated steam, superheated steam, gases and liquids, but each technology is stronger in different operating conditions. If the duty is saturated steam in smaller line sizes, TFA offers a compact point-of-use solution with pressure-compensated measurement and no moving parts. If the site needs saturated or superheated steam visibility with limited straight pipe length, TVA provides integrated temperature sensing and can fit constrained installations. If the application sees large load variation, Gilflo and ILVA are usually the better fit. Their variable area principle supports strong low-flow performance, compact wafer installation and turndown up to 100:1, which is valuable when systems spend significant time below peak demand. The next selection question is what the plant needs from the signal. A local indication may be enough for some duties, but many sites also need totalisation, mass flow awareness, remote outputs or energy calculations. That is where Spirax Sarco flow computers, indicators and transmitters become part of the metering package. For decarbonisation, cost control and operational improvement programmes, the most useful flowmeter is usually the one that best fits the duty, the installed space and the quality of performance data the site needs to act on.
Flowmetering computers, indicators and transmitters
Spirax Sarco flow computers, indicators and transmitters support accurate steam, gas and liquid measurement with mass flow, energy and signal integration capability.
Gilflo and ILVA flowmeters
Spirax Sarco Gilflo and ILVA flowmeters provide variable-area flow measurement for steam, gas and liquids with wide turndown and strong low-flow visibility.
TFA saturated steam flowmeter
Spirax Sarco TFA saturated steam flowmeters provide compact steam metering for smaller line sizes with practical installation and energy visibility benefits.
TVA saturated and superheated steam flowmeter
Spirax Sarco TVA flowmeters provide compact steam flow measurement with density compensation and stronger visibility across changing steam loads.
How to choose the right flowmetering route
Flowmeter selection is easier when the project starts with fluid type, load profile and the quality of data the plant needs to act on. The real decision is not just which meter fits the line, but which technology remains useful across the operating range and whether the site also needs energy or mass-flow outputs.
| Route | Best fit when | Main strength | Next route |
|---|---|---|---|
| TFA and TVA target flowmeters | The duty is focused on saturated or superheated steam and installation space may be restricted | Compact steam metering with no moving parts | Browse target flowmeters |
| Gilflo and ILVA flowmeters | Load variation is large and strong low-flow performance matters | Wide turndown for steam, gas and liquid duties | Browse Gilflo and ILVA flowmeters |
| Flow computers and transmitters | The installation needs totalisation, remote outputs or energy measurement | Turns meter readings into actionable plant data | Browse flow computers and transmitters |
Typical routes from common flowmeter searches
Flowmeter searches usually separate by fluid condition and the type of data the plant needs. Start with target flowmeters when the duty is steam-focused and compact installation matters. Use saturated steam flowmeters for smaller saturated-steam duties, and compare TVA flowmeters when saturated or superheated steam visibility is needed in tighter pipework.
If the installation sees large load swings and low-flow visibility matters more than a basic point reading, review Gilflo flowmeters. Where the project also needs totalisation, outputs or energy calculations, add flow computers to the metering route.
Continue your Spirax Sarco flowmeter research
Flowmeter research often starts with hardware, but the strongest project outcomes usually depend on how the meter fits plant efficiency goals, engineering knowledge and wider steam-system improvement.
Connect metering with plant energy outcomes
Use this route when you want to connect flow measurement with energy reduction, plant efficiency and broader steam system performance improvement.
Review steam flow measurement principles
Move into the engineering tutorials when you need background on flowmetering principles, accuracy, turndown, installation and meter selection terminology.
Turn measurement into optimisation work
Explore steam system audits when the next step is turning better data into site-wide action on efficiency, reliability and operational improvement.