Venturi Technology - EVCR Unit



“EVCR Unit” – Enercon’s Venturi Technology for Condensate Removal

(316 Stainless Steel, Solid Drilled Venturi with Accompanying Y Strainer)


The key to operational performance in a steam system is the efficient purging of all condensate, while maximizing dry heat that stays in the system. Water in the system reduces heat transfer and causes corrosion, erosion, water hammer, and other problems. The EVCR Unit’s innovative design completely eliminates condensate from a steam operating system while maximizing the system’s retention of BTU rich, dry heat.

Download the PDF “Discussion Paper Enercon Drilled Venturi Units”  for a more thorough discussion of the following Summary


This permanent solution is a “field proven” solution to the boiler-to-return tank condensate and steam loss problems in over 1,000 facilities over the past 25+ years, cutting energy consumptions and costs for those facilities.

While cutting energy costs 10% to 35+% and virtually eliminating steam trap maintenance, our EVCR Unit has solved problems such as low and inconsistent temperatures, pressure drops, high back pressure and water hammer.


The EVCR Unit is a “fixed” venturi device. It removes condensate continuously, has no moving parts, and when properly sized and installed, performs incredibly.

The EVCR Unit is NOT another steam trap but a permanent, superior replacement to today’s mechanical steam trap. Through permanently eliminating condensate backup on the operating side of a steam system and the over-pressure on the condensate side of a steam system caused by failed steam traps, a more balanced downstream pressure is achieved significantly improving heat transfer.

ECVR Units in plants converted as long as 25+ years ago have not needed replacement or lost condensate removal efficiency!

Tracers Before

With Mechanical Steam Traps

Tracers After

With Enercon EVCR Units (Day 1 and thereafter)



Many of our clients have asked us, “Is there a specific type of industry that the EVCR Unit is not applicable to?” The answer is NO. The EVCR Unit is already being used in a variety of industries; petrochemical, lumber, plating, chemical, pulp & paper, packaging, pharmaceutical, food & beverage, hospitals, large buildings, airports, universities, dairy industries, power generation, etc.

EVCR Units are being used in facilities ranging from small, simple, low pressure systems to huge, complex, multi pressure, multi- process systems.  Clients range from small individual plants to multi operational, multi facilities of Fortune 500 companies.

On completely converted plants, Enercon technology has been applicable for and replaced, on average, 99% of existing conventional traps.


Every condensate load varies somewhat. When the load does drop below 100%, the solid condensate stream that completely blocks steam loss, aided by Enercon’s Venturi Design, becomes a violently turbulent mixture of equivalent volumes of steam and water, a phenomenon called two-phase flow. Since condensate is several hundred times denser than steam, no steam loss is experienced down to 68% of maximum load and only a negligible amount thereafter.


Conventional mechanical steam traps remove condensate cyclically. They are designed to open in the presence of condensate and close in the presence of steam utilizing internal floats, buckets, bimetal, bellows or discs.

Since mechanical steam traps lose steam every time they cycle, a greater loss is experienced as a system approaches capacity.  Additionally, properly operating mechanical steam traps may cycle several times a minute – over 2 million times a year on 24-hour-a-day processes. Consequently, moving parts degrade over time and mechanical steam traps wear, leak and eventually fail.

This degradation and failure lead to the following issues:

  • Increased equipment and piping issues due to excess condensate in the operating side of the steam system and over pressurization in the condensate return side of the system.
  • Labor intensive maintenance program for identification and replacing of malfunctioning traps;
  • Ongoing replacement cost – Life expectancy before total failure avg. 3-5 years for higher; quality mechanical traps; as little as 3 months for lower quality mechanical steam traps;
  • Steam system inefficiencies in 15% to 30% range are normal;
  • Employee safety issues;
  • Increased release of carbon and chemicals into the environment.

 Contact us about using EVCR technology that continuously removes condensate. We proudly serve companies in the United States, Canada, and Europe.