Core Mass Flow Products and Services

Mass Flowmeters & Controllers
We are a manufacturer of premium quality & performance Mass Flow Measurement and Control instrumentation for gases, liquids and steam. Our product line is a range of cost effective and robust mass flow meter and controller offerings in various flow ranges, surface finishes, mechanical interfaces and electrical connections. 

Primary Standard Flow Meter Calibration & Field Services
We specialize in Primary Standard NIST traceable calibration, repair and field services for mass flow meters and controllers.  To complement our services, we have a line of cost-effective and portable Primary Standard gas flow calibration systems for customers who prefer to do their own recalibration.

OEM's, Private Labeling & Custom Solutions
A major part of our business is working closely with Original Equipment Manufacturers (OEM’s), Private Label and general customers to meet their pricing and design goals.  We are organized to rapidly modify or custom engineer a mass flow meter or controller solution.

Sierra Emissions Systems
We manufacture the well-known Model BG-3 Transient Partial Flow Dilution System used to sample engine exhaust particulate emissions during engine R&D and Certification. We also supply a comprehensive line of engine emissions sampling tools, accesories, test cell automation solutions and consulting services. Through our network of world-class partners, Sierra Emissions Systems can provide almost any engine of vehicle testing turn-key solution imaginable.