Model 447 IGG Regulator

Model 447-40-IGG-1/4 Pipeline Inert Gas Guard Regulator


Model 447-40-IGG-1/4 heavy-duty pipeline flow control inert gas guard regulator for use with Argon (Ar), Carbon Dioxide (CO2)


Model 447 is a special pipeline flow control device with a brass-plated body and bonnet, designed to deliver shielding gases more economically than other flow control devices, thus eliminates wasteful “surge”. Available models for MIG and TIG.


  • Special pipeline flow control device
  • Designed to deliver shielding gases more economically
  • Easy-to-operate brass "T" screw handle
  • Brass-plated body and bonnet for longer service life
  • Rubber diaphragm for better pressure control
  • 2" Steel dual scale up to 40 SCFH Ar/CO2 gauge
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon® seat from particulate contamination
  • 1/4" NPT (F) inlet connection
  • 5/8" - 18 RH (F) outlet connection
  • Conforms to CGA E-4


Warning -

Cancer and Reproductive Harm -

Warranty Information

  • 7 Years

What's Included

  • Model 447-40-IGG-1/4 Pipeline Surge Control Inert Gas Guard Regulator



Adjusting Screw Brass “T” screw handle
Body Brass-plated
Bonnet Brass-plated
Certification CGA E-4
Cv N/A
Delivery Flow Gauge (SCFH) 40
Delivery Flow Range (SCFH) 0 - 40
Diaphragm Rubber
Duty Heavy
Gas / Gas Service Argon (Ar), Carbon Dioxide (CO2)
Gauges 2" Gold painted steel up to 40 SCFH
Inlet Connection 1/4” NPT (F)
Maximum Inlet Pressure (PSIG) 500
Outlet Connection 5/8" - 18 RH (F)
Seat PTFE Teflon®


Warranty 7 Years