Inline Vortex
Mass Flowmeter
SPIRAX-EMCO announces the release of the VLM20 inline vortex mass flowmeter for mass, volumetric, and energy flow measurement on steam, liquid, and gas applications.

Built on past EMCO Vortex experience in flow measurements . . .The VLM20 takes the legendary performance of the PhD inline vortex, combined with a built-in flow computer and an integral RTD to provide an elegant solution to your flow metering needs.

The benefits of the VLM20 are:
  • VLM20 product delivery lead time as low as 3-4 weeks.
  • Compact all in one solution for your saturated steam and other fluid applications.
  • Versatility to measure a wide range of fluids
  • Low pressure drop 
  • Minimal scheduled maintenance.
  • Modbus RTU, BACnet MS/TP and Modbus TCP/IP digital communications along with standard analog and pulse outputs are available.
  • No moving parts design, with no leak path, provides reliable long-term use without need for recalibration or maintenance.
  • Precise and reliable steam/gas mass flow accuracy of ±1.5% of range over a wide 20:1 flow range.

General Specifications

• Fluid Types: Steam, liquid
  or gas
  • Line sizes - 1" to 12"
  • Flange ratings - 150, 300 and 600# RF

• Velocity Range:
o Liquids: 1.5 to 32 ft/sec
(0.5 to 9.8 m/sec)
o Gas/steam: 260 ft/sec max

• Flow Accuracy Liquids
o Volumetric ±0.7% of rate
o Mass/Energy ±1.0% of rate

• Flow Accuracy Steam/Gas
  & Energy
o Volumetric ±1.0% of rate
o Mass/Energy ±1.5% of rate

• Repeatability
o Volumetric ±0.1% of rate
o Mass & Energy ±0.2% of rate

  • Certifications and Approvals
       CE, FM, CSA, ATEX pending

VLM General Spec

NEW FOR 2017!!!!

Make sure you scroll completely down this page to see new products from our principals!


We have a solution for that  . . . . . .

Spirax Sarco, Inc., is the brand of precision flow meters for liquid, gas, and steam applications, accommodating a wide range of pipe sizes. Field proven for over 35 years, the Spirax Sarco product line offers solutions for measurement, including industrial inline vortex, industrial insertion vortex and turbine, and variable area flow products. Spirax Sarco products provide a wide range of metering solutions to diverse industries, including the military, hospitals, universities, and many Fortune 500 companies.

Our manufacturing facilities are dedicated to producing only the highest quality and advanced products. Our years of experience, together with our culture of continuous improvement, ensure that our meters are the most up-to-date and as comprehensive as possible.

Below you will find a few of our flow meter solutions. Contact our offices to learn more about the features of benefits of this flowmeter line of products.

                                              VLM20 Inline Vortex Mass Flowmeter

                                                                                  Internal RTD
                                                                                  Integral flow computer for the mass flow measurement of steam,
                                                                                     gas, and liquids
                                                                                  Line sizes 1" to 12"
                                                                                  Fully welded design with no leak path
                                                                                  BACnet, Modbus and industry standard communications
                                                                                  No special software needed
                                                                                  Up to 20:1 turndown on all fluid applications

Insertion Turbine Flowmeter

   Internal RTD
   Integral flow computer for mass flow measurement of steam and other fluids
   Can be installed under full flow conditions without bypass tubing or line shutdown
   Comes with a wide range of digital and industry standard communication options
   No special software needed

UTM10 Ultrasonic Clamp On Flowmeter

   Easiest and fastest way to measure clean liquids
   Accurate and reliable
   No line shutdown
   Setup takes minutes
   Up to a 30:1 turndown on clean liquid applications
   No fluid compatibility or contamination issues, as transducers do not come in contact with fluid

TVA Target Variable Area Flowmeter

   Ideal solution for saturated steam flow measurement
   Provides wide 50 to 1 turndown for saturated steam applications
   Internal RTD
   Multivariable electronics
   No additional equipment is required
   Simple to install with short straight run requirements 6 diameters up
   and 3 diameters down
   High performance with low total cost of ownership

On-site services for steam system solutions from Spirax Sarco

With the costs of energy, maintenance, and downtime rising, an investment in auditing and optimization can realize rapid payback. System-wide corrosion is a common problem encountered during system audits. Malfunctioning or misapplied steam traps waste energy and compromise process controls. The audit report highlights recommended actions with calculations of the potential return on investment. Solutions range from supply and installing replacement parts, to the design and implementation of system efficiency improvements to total steam system management. The recommended course of action makes good business sense for operational, economic, safety and environmental improvements in your system.

Contact us today to learn more about on-site services from Spirax Sarco.

Replace your old rotameters with a better flow measuring solution!!