351-60AR-580 Flow Regulator

Model 351 - Flowmeter

Model 351 heavy-duty, "zero" compensated flowmeter regulator


Model 351 flowmeter regulator is "zero" compensated for more efficient shielding gas use. This model is a compact flowmeter regulator at the price and size of most competitive flowmeters. It has a clear dual scale (psi/bar) flow tube for accurate readings. The Model 351 is available in several versions. The pipeline version provides accurate and consistent flows despite wide fluctuations in pipeline pressure. The cylinder version makes it more resistant to carbon dioxide freeze-up than comparable competitive models. The shielding gas kit version controls argon-carbon dioxide mix shielding gases. The kit includes also includes a 3/16" x 10' approved inert gas hose.


  • Brass body and bonnet
  • 50mm ABS plastic dual scale gauge
  • One-piece encapsulated seat design with an internal filter and PTFE Teflon® seat
  • Plastic adjusting knob
  • Neoprene diaphragm

Typical Applications

  • Gas-shielded welding
  • Pipeline applications
  • Gas-shielded arc welding
  • Industrial applications


Warning -

Cancer and Reproductive Harm -