Dwyer GFC Series Gas Mass Flow Meter and Controllers
Dwyer GFC Series Gas Mass Flow Meter and Controllers

Dwyer GFC Series Gas Mass Flow Meter and Controllers

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Dwyer GFC Series Gas Mass Flow Meter and Controllers combine a straight tube sensor with a restrictor flow element. It is available for flow ranges up to 1000 L/min and offered in aluminum or 316 SS in 1/4″, 3/8″, 1/2″ and 3/4″ sizes. Flow Range Up to 1000 L/min, Pressures Up to 1000 psi, NIST Traceable.

Dwyer GFC Series Features

  • Provides high accuracy and repeatability
  • Flow rates are virtually unaffected by temperature and pressure variations
  • Utilizes an electromagnetic valve and PID electronics to maintain continuous control by comparing measured sensor signal set to flow rates
  • Set points can be adjusted with local potentiometers or remotely via 0 to 5 VDC or 4 to 20 mA analog signal
  • Actual gas flow is displayed in engineering units on a 3-1/2 digit, 90° tiltable LCD readout
  • Can be used with Series GFT2 Flow Totalizer for applications requiring totalization
  • NIST traceable certificate included


  • Gas flow measurement
  • Gas flow control
  • Operating pumps and valves
  • Process equipment
  • Vacuum processes
  • Glass and metal coating
  • Film deposition
Another Article:

Dwyer GFC Series Specification

Service Clean gases compatible with wetted parts.
Wetted Materials GFC-1XXX: Anodized aluminum, brass, 316 SS and fluoroelastomer O-rings; GFC-2XXX: 316 SS and fluoroelastomer O-rings.
Accuracy ±1% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.34 to 4 bar); Series GFC X143, X144, X145, ±1.5% FS.
Repeatability ±0.5% of FS.
Response Time 2 seconds to within ±2% of actual flow.
Output Linear 0 to 5 VDC and 4 to 20 mA.
Maximum Particulate Size 5 microns.
Temperature Limits 32 to 122°F (0 to 50°C).
Power Supply ±12 VDC
Process Connections 1/4″ compression fitting for flow rates ≤50 L/m; 3/8″ for 100 and 200 L/m; 1/2″ for 500 L/min; 3/4″ for 1000 L/min.
Pressure Limits 1000 psig (68.9 bar); Series GFC-X143, X144, X145, 500 psig (34.5 bar).
Leak Integrity 1 x 10-9 sccs of He.
Display 90° tiltable, 3-1/2 digit.
Agency Approvals CE.

Download Data Sheet: Series GFC Gas Mass Flow Meter and Controllers

Ref: dwyer-inst.com

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