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Series HF In-Line Flow Monitors

In-line flow monitor, 1/4" female NPT, 2-22 SCFM, non corrosive gases

$419.00

Item# HFA-1-22

In stock

Lead Time (If not in stock): 4 weeks
In-line flow monitor, 1/4" female NPT, 2-22 SCFM, non corrosive gases HFA-1-22 HFA-1-22
  • This unique design allows accurate performance with fluid viscosities up to 500 SSU
  • All internal wetted parts are contained inside a sealed metal tubular casing assuring a virtually maintenance-free unit
  • Increased application versatility with no inlet or outlet straight plumbing requirement and can be mounted horizontally, vertically, or inverted
  • Rugged construction allows for high pressure and temperature rating for long operation life

HFA-1-22 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Media Type
Gas Flow Range
Liquid Flow Range
Process Connection Size
Max Operating Pressure
Accuracy
Process Connection Type
Wetted Materials
Scale
Valve Included
Warning WARNING: This product can expose you to , a chemical known to the State of California to cause . For more information go to www.P65Warnings.ca.gov.


  • Accuracy ±2% FS.
  • Pressure Limits: HFA, HFB, HFL and HFH models: 600 psig (41 bar) for air and gas, 3500 psig (241 bar) for liquids; HFS model: 1000 psig (70 bar) for air and gas, 6000 psig (413 bar) for liquids.
  • Repeatability: ±1% of FS.
  • Service: Compatible gases or liquids.
  • Temperature Limits: 240°F (116°C).
  • Wetted Materials: HFA: Aluminum casing, Buna-N seals, PTFE coated Alnico magnet, SS disk; HFB: Brass casing, Buna-N seals, PTFE coated Alnico magnet, SS disk; HFS: 303 SS casing, FKM seals with PTFE backup, PTFE coated Alnico magnet, SS disk.
  • Maximum Viscosity 500 SSU.
  • Shipping Weight 1/4" to 1/2" female NPT models; 2 lb (0.9 kg); 3/4" to 1" female NPT models: 3.5 lb (1.59 kg); 1-1/2" female NPT models: 11 lb (5 kg); 2" female NPT models: 13.5 lb (6.12 kg).

The Series HF In-Line Flow Monitors are ruggedly constructed and ideal for direct measurement for a range of compatible gases, oil or water based liquids. This Series is designed based on a floating orifice disk and variable area flow measurement. Flowing media forces linear motion of the orifice disk and a ring shaped magnet which ride on a tapered center shaft. The transfer magnet drives a clearly visible magnet follower located outside the flow tube, and a ring on the magnet follower indicates flow rate on the direct reading scale.

Note: If you require a calibration certificate with your flowmeter, please contact customer service to place your order

Product Applications

  • Setting pressure relief valves
  • Fluid handling equipment
  • Detecting low-flow rates for lubricating liquids
  • Pulp and paper
  • Industrial maintenance
  • Fluid power
  • Heating loop flow
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