Steam flowmeters and flowmetering

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.

Benefits

Measure steam, gas and liquid flow with stronger operating visibility

Match meter technology to turndown, line size and installation constraints

Connect flowmeters with transmitters, indicators and flow computers

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.

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.

RouteBest fit whenMain strengthNext route
TFA and TVA target flowmetersThe duty is focused on saturated or superheated steam and installation space may be restrictedCompact steam metering with no moving partsBrowse target flowmeters
Gilflo and ILVA flowmetersLoad variation is large and strong low-flow performance mattersWide turndown for steam, gas and liquid dutiesBrowse Gilflo and ILVA flowmeters
Flow computers and transmittersThe installation needs totalisation, remote outputs or energy measurementTurns meter readings into actionable plant dataBrowse flow computers and transmitters

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.

Talk to our international steam solutions team

If you need more information about product selection, technical documentation or steam system solutions, contact the Spirax Sarco team.