Steam Flow Meters

Steam Flow MetersIntroduction

Steam flow meters are helpful in evaluating the performance of the system and can provide useful data in assessing boiler performance, calculating boiler efficiency, and tracking the amount of steam required by the system. In some systems, steam flow meters provide a measurement signal for the boiler control system. Additionally, steam flow meters can be useful in benchmarking efforts.

There are three basic types of steam flowmeters: differential pressure (DP), vortex, and Coriolis. Differential pressure flowmeters rely on the change in pressure as steam flows by an element such as a nozzle, orifice, or venturi. This pressure difference provides an indication of flow velocity, which, in turn, can be used to determine the flow rate. Vortex flowmeters rely on the principal that flow past an element creates vortices that have frequencies that correspond to the flow velocity. Coriolis flowmeters rely on tubes placed in the steam flow path that twist according to the velocity of the flow.  


Sample Steam Flow Meters


A large variety of meters and web site links can be found at:



RCM Flow MeterDifferential Pressure

RCM Industries, Inc.
110 Mason Circle
Concord, CA 94520
Telephone: 925-687-8363
Fax: 925-671-9636

Web site







Vortex Steam Flow MetersVortex Style


Sparling Instruments, Inc.
4097 N. Temple City Blvd.
El Monte, CA 91731 Telephone: 800-800-3569; 626-444-0571
Fax: 626- 444-2314

Web site


Sierra Instruments, Inc.,
5 Harris Court, Building L,
Monterey, CA 93940
Telephone: 800-866-0200
FAX: 831-373-4402

Web site


Spirax Sarco, Inc
1150 Northpoint Blvd.
Blythewood, SC 29016
Telephone: 803-714-2000
Fax: 803-714-2222

Go to their web site at



Coriolis Steam Flow MeterCoriolis

AW Company
8809 Industrial Drive
Franksville, WI 53126
Telephone: 262-884-9800
Fax: 262-884-9810

Web Site




Steam Flow Pitot MeterAveraging Pitot

Solartron Mobrey Ltd
158 Edinburgh Avenue,
Slough, Berkshire, UK, SL1 4UE
Telephone: +44(0)1753 756600
Fax: +44(0)1753 823589

Solartron Mobrey
19408 Park Row, Suite 320
Houston,Texas 77084-4860
Telephone: 281-398-7890
Fax: 281-398-7891




More Information


Steam Flow Meters More







Source: Introduction Text from  DOE "Improving Steam System Performance: A Sourcebook for Industry" 2004; image of RCM steam flow meters from sales web site 3/2005; product images from web sites referenced and linked above 3/2005;