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Demand Flow Regulator DFR for Calibration Gas Cylinders with C10 Valve
Demand Flow Regulator DFR C10 calibration gas cylinders, vacuum actuated sample regulator

Base Price: $495.00

Availability: Usually Ships in 3 to 5 Business Days


Demand Flow Regulator DRF for Calibration Gas Cylinders

Demand Flow Regulator (DFR) Used for the calibration of gas monitors / detectors

Supplies gas as demanded by an gas monitor or analyzer and automatically shuts off. This highly sensitive DFR allows for reduced testing time, permitting the flow of gas at less than one inch water column.


  • Body made from Clear Anodized Aluminum
  • Fits Calibration Gas Cylinders with C10 Fitting (34, 44, 58, 66, 74, 100, 105, 116 Liter Aluminum and 103 Steel Cylinders)
  • 0-1500 PSI gauge
  • 3/16" hose barb
  • Seals and Seats- Viton, Nitrile and Teflon
  • Diaphragm- Nitrile
  • Inlet Connection- C10 fitting
  • Outlet Connection- 3/16" Hose Barb

Demand flow regulator (DFR) is designed for use with instruments that utilize a sample draw pump to draw the calibration gas. This regulator provides the exact amount of gas that the instrument pump requires. This type of regulator makes calibration quick and easy by eliminating the need for sample bags, flow meters, or special operator training. In addition, it saves calibration gas because it only transfers as much gas as the instrument demands.

Typically used for Gas Monitoring Docking Stations. For use with cylinders with C10 fitting.

Also known as a pressure reducing regulator, vacuum actuated regulator, or sample regulator.

Compatible for use with- REG-DF-1, N600 1001 33, 18102509, 51700, 1419-216, 2004 and 75-DFR

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 Original regulator died November 3, 2016
Reviewer: Alex White from Traverse City, MI  
Our 1st regulator died while attached to our docking station.  I couldn't believe how expensive these things are.  Found these which look alittle different than what we had but after 4 months of hard work, it is still working.  A bit less expensive and worth the money.

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