Online Density Compensation
Product Description
Manas manufactures, supplies and exports Compact Gas Flow Meters for Bio Gas, LPG, Natural Gas, CNG, compressed air and other compressed gases. The compact GFM is built for plants that need affordability, ruggedness and reliable compensated mass flow measurement.
Conventional orifice-based systems often assume constant gas density after square-rooting the DP transmitter signal. In real compressed-gas lines, density changes with line pressure and temperature. This compact gas flow meter solves that problem with online pressure and temperature measurement for density compensation.
Measurement Challenge
Differential pressure measurement is dependable, but gas density is not constant. Pressure and temperature shifts directly affect the actual mass flow rate.
The compact gas flow meter integrates the DP transmitter signal with online pressure and temperature inputs. The system then displays compensated mass flow rate along with density, temperature and transmitter output.
This makes the meter well suited for industrial gas consumption monitoring where plant teams need repeatable measurement without complex field wiring or frequent mechanical maintenance.
Mass flow measurement for Bio Gas, LPG, Natural Gas, CNG, compressed air and other compressed gases in closed conduits.
Available in line sizes from 1 inch to 8 inch.
Online density compensation using pressure and temperature measurement.
Easy installation, commissioning and long-term maintenance.
Principal Advantages
Line pressure and gas temperature are monitored online, helping compensate density changes that create errors in conventional DP flow measurement.
Each compact GFM system uses an accurately designed differential flow element and orifice assembly selected for the application.
The system can display compensated mass flow rate, density, temperature and DP transmitter output for easier plant operation.
A rugged differential-flow-element construction gives the meter a stable, low-maintenance measurement path for industrial gases.
Compact gas flow meters are used wherever plant teams need reliable gas consumption measurement and easy commissioning.
Technical Data
Standard specifications are listed below. Final configuration can be engineered to suit your process and installation requirements.
Specifications are subject to change without prior notice.
Answers for engineers and buyers evaluating compact gas flow meters for industrial gas lines.
Verified by Manas Engineering
Flow measurement expertise for industrial gas applications