Catalog Welding Gas Equipment Gas Regulators & Flowmeters Gas regulators control the pressure of gas. Gas flowmeters control gas flow, while flowmeter regulators control both gas flow and pressure. Gas switchover systems provide a continuous flow of gas to an application. ◀◀ ◀ ▶ ▶▶ High Purity Gas Regulator: Two Stage, CGA 590 Inlet, 1/4 in Tube Outlet, 125 psig Mastar Regulator LD AcetyleneCGA520: Single Stage, CGA 520 Inlet, 3/8"-24 M LH Outlet High Purity Gas Regulator: Single Stage, CGA 580 Inlet, 1/8 in Tube Outlet, 15 psig High Purity Gas Regulator: Single Stage, 1/4 in NPT F Inlet, 1/4 in NPT F Outlet, 50 psig Specialty Gas Regulator: Two Stage, CGA 300 Inlet, 9/16"-18 M LH Outlet, 15 psig, Acetylene High Purity Gas Regulator: Single Stage, CGA 350 Inlet, 1/4 in NPT F Outlet, 22 psig High Purity Gas Regulator: Single Stage, 1/2 in NPT F Inlet, 1/2 in NPT F Outlet, 500 psig Gas Regulator: Two Stage, CGA 540 Inlet, 9/16"-18 M RH Outlet, 125 psig, Oxygen High Purity Gas Regulator: Single Stage, 1/4 in NPT F Inlet, 1/4 in NPT F Outlet, 250 psig High Purity Gas Regulator: Single Stage, CGA 590 Inlet, 1/4 in NPT M Outlet, 50 psig High Purity Gas Regulator: Single Stage, CGA 580 Inlet, 1/4 in Tube Outlet, 50 psig High Purity Gas Regulator: Single Stage, CGA 350 Inlet, 1/4 in Tube Outlet, 50 psig High Purity Gas Regulator: Two Stage, CGA 330 Inlet, 1/4 in NPT F Outlet, 22 psig Gas Regulator: Single Stage, CGA 540 Inlet, 9/16"-18 M RH Outlet, 50 psig, Neoprene Diaphragm High Purity Gas Regulator: Single Stage, CGA 580 Inlet, 1/4 in Tube Outlet, 15 psig Acetylene Regulator: Single Stage, CGA 200 Inlet, 3/8"-24 M LH Outlet, 15 psig, Acetylene High Purity Gas Regulator: Two Stage, CGA 590 Inlet, 1/4 in Tube Outlet, 15 psig High Purity Gas Regulator: Single Stage, CGA 320 Inlet, 1/8 in Tube Outlet, 15 psig High Purity Gas Regulator: Single Stage, CGA 330 Inlet, 1/4 in Tube Outlet, 250 psig Gas Regulator: Single Stage, CGA 350 Inlet, 9/16"-18 M LH Outlet, 100 psig ◀◀ ◀ ▶ ▶▶