About Eldridge Products : Thermal Mass Flow Meter Manufacturer

Since 1988, Eldridge Products, Inc. (EPI) has been one of the world's premier thermal mass flow meter manufacturers. For almost 30 years, EPI™ has specialized in manufacturing accurate, economical and reliable thermal mass flow meters and other flow related products . . .

  • 1988 – Eldridge Products, Inc. is established and introduces the hazardous area class of Series 8000 Inline and
               Insertion thermal mass flow meters; introduces low pressure ball valve retractors
  • 1989 – Introduces the thermal Series 7000 flow switch and Series 6000 level switch
  • 1990 – Introduces the Series 9000 Multipoint averaging stack probes; establishes flow calibration lab and begins
               in-house flow calibrations
  • 1991 – Develops Iso-kinetic stack sampling and control systems; develops dual sting metal clad sensors; develops
               control valve and controller; receives FM certification Series 8000, 7000, 6000
  • 1992 – Establishes Western European Distributors; develops high velocity PS1 flow meter; introduces
               Ordinary Location (NH) flow meter product line; calibration lab installs 1000°F gas calibrator
  • 1993 – Develops high temperature/low flow axial sensor flow meter
  • 1994 – Establishes Asia and Pacific Rim Distributors
  • 1995 – Develops 900°F high temperature stack insertion flow meter
  • 1996 – Introduces the Master-Touch™ Series of microprocessor-based flow meters; receives CSA certification for
               the Series 8000, 7000, 6000
  • 1997 – Receives CENELEC (LCIE) Ex certification for the Series 8000, 7000, 6000; flow lab installs two gas flow provers
  • 1998 – Receives China Pattern Approval for Master-Touch™ flow meters
  • 1999 – Introduces high pressure, screw-drive probe retractor assembly; develops bi-directional flow meter
  • 2001 – Invents first hybrid analog/digital flow sensor bridge circuit
  • 2002 – Field tests first hybrid analog/digital flow sensor bridge design and flow meter
  • 2003 – Patents the thermal Flow Averaging Tubes (FAT™); introduces first all microprocessor controller sensor design
               and flow meter
  • 2004 – Patents the thermal mass flow meter wide temperature correction method; receives CSA/CUS certifications for
               Master-Touch™ MP and MPNH Series flow meters
  • 2005 – Receives ATEX (KEMA) certification for Master-Touch™ MP Series flow meters
  • 2005 – Receives KOSHA (South Korea) certification for Master-Touch™ MP Series flow meters
  • 2007 – Establishes the ValuMass™ product line of low cost flow meters with Digital Sensor Interface
  • 2008 – Introduces our Master-Touch™ Digital Sensor Interface sensor bridge with wide temperature compensation curve fit
  • 2011 – Receives IECEx certification for Master-Touch™ MP Series flow meters
  • 2013 – Installs high flow closed-loop flow calibrator
  • 2014 – Moves to new location with greatly expanded calibration facilities

Our trademarked brands now include EPI™, Master-Touch™, EPICom™, FAT™, E-Logger™, LightWIRE™, and ValuMass™.

We appreciate your taking the time to visit our site and hope we can help you with your flow application soon.

Thank you,
The EPI™ team


flow meter products