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WARNING: This product can expose you to chemicals including Nitrogen Dioxide, which is known to the State of California to cause cancer, and Carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Harris® Model 55-2HE 9/16-18 Heavy Duty Helium And Hydrogen Flowmeter

Airgas Part #:HCL5400612

Harris Calorific

Manufacturer #:5400612


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$127.45 /Each
Package Size: 1 Each
$127.45 Each
$127.45 Each

Typically in Stock

Item Details

  • Harris® Model 55-2 He/H2 90 heavy-duty single-stage flow meter is specially designed for gaseous withdrawal from helium/hydrogen cylinders. This high flow regulator with 2 1/2" brass scale gauge features delivery pressure ranging from 0 - 100 PSIG and supply pressure gauge of 4000 PSIG. Regulator incorporating 9/16"-18 (F) inlet is provided with a 5/8"-18 (F) outlet. Regulator conforms to CGA-E-4 standard for gas pressure regulators.


  • Designed to give precise flow control in SCFH
  • They are compensated at 20 and 50 PSIG and calibrated for most common industrial gases
  • Sensitive needle valve for fingertip control
  • Tamper proof, self reseating, internal HP safety valve
  • Durable, easy to read flow tube and cover


  • Conforms to CGA-E-8


  • 70 PSIG relief value included


  • Gas-shielding welding
  • Pipeline applications

Product Attributes

Regulator Type

» Flowmeter Regulator

Gas Service

» Helium » Hydrogen » H » He

Delivery Rate

» 10 - 100 scfh

Inlet Connection

» 9/16" - 18 (Female)


» Heavy Duty

Outlet Connection

» 5/8" - 18 RH (Female)

Gauge Diameter

» 2"