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Miller® Model 40-175 Heavy Duty Series 40 Oxygen Single Stage Regulator, CGA 540

Airgas Part #:MIL40-175-540

Miller Electric Manufacturing

Manufacturer #:40-175-540

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$273.81 /Each
Package Size: 1 Each
$273.81 Each
$273.81 Each

Typically in Stock

Item Details

  • Miller® Smith® heavy duty, single stage oxygen regulator that provides high gas flows at up to 175 PSIG delivery pressure. Its rugged brass construction makes the 40 series oxygen regulator ideal for welding, cutting, heating and other industrial applications, either in the shop or on the job site. Stainless steel diaphragm allows use with liquid gases.


  • External Relief Valve - Protects regulator from damage due to inadvertent high pressure surge
  • Color Coded Labels - Supply performance capabilities and easy gas service identification
  • Stainless Steel Diaphragm - Resists damage and freeze-up if used with liquid gases for extended service life
  • Die-Cast "T" Bar Adjusting Screw - Provides comfort and durability
  • Delrin™ Bonnet Insert - Allows smooth, easy adjustment even at high pressure levels
  • Nickel Plated Bonnet - Along with brass body protect against corrosion
  • Dual Filters Including Sure Seat™ - Protects high pressure seat from debris for reliable operation and long service life
  • Shatter Resistant Gauge Lenses - 2-1/2" Brass gauges with Polycarbonate lenses resist damage and corrosion

Product Attributes

Regulator Type

» Single Stage Regulator

Gas Service

» Oxygen » O2

Delivery Rate

» 175 psig

Inlet Connection

» CGA 540


» Heavy Duty

Outlet Connection

» 9/16" - 18 (RH Male)

Gauge Diameter

» 2"