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Victor® Model SR450D-346 Heavy Duty/High Capacity Air Single Stage Regulator, CGA-346

Airgas Part #:VIC0781-0532

Victor Equipment

Manufacturer #:0781-0532

$337.38 /Each
Package Size: 1 Each
$337.38 Each
$337.38 Each

Typically in Stock

Item Details

  • Victor® SR 450 Series Single Stage Heavy-Duty Air Regulator offers 5 - 125 psig delivery range and is ideal for applications where little delivery pressure increases due to decreasing cylinder pressures that would not affect the performance characteristics of the work or test results. Regulator with maximum inlet pressure of 3000 psig features die-forged brass body for strength as well as durability. Regulator featuring 2 1/2" brass gauges has 4000 inlet gauge range and 200 outlet gauge range. Regulator with 346 CGA-inlet connection and 5/8"-18 LH(F) outlet connection has 3 1/4" stainless steel diaphragm that provides precise long lasting service. Single stage regulator is specifically designed for medium to high capacity. Regulator with 0.27 Cv flow coefficient has electro less nickel plated bronze sintered inlet filter. Regulator has adjusting screw with forged T-handle for convenience. Regulator comes with long-lasting Delrin insert bushing and stainless ball in key for easy adjustment. Regulator with adjusting spring is pretested for quality assurance and has precision-machined nozzle for maximum flow control. Regulator includes stem-type seat mechanism inlet pressure that helps in sealing and external self-reseating relief valve. Regulator is ideal for various industrial and commercial applications. Regulator measuring 7 1/4" X 5.13" X 7" delivers at least the stated upper range and in some cases may surpass the stated upper range.


  • Brass adjusting screw with forged T-Handle
  • Delrin insert bushing for durability, easier adjusting
  • Die forged brass spring housing cap provides greater strength and durability
  • Stem type seat mechanism
  • Stainless steel diaphragm gives accurate long lasting service
  • Stainless ball in key for easy adjustment
  • Adjusting spring pretested for quality assurance
  • Regulators will deliver at least the stated upper range and in some cases may exceed the stated upper range
  • Precision machined nozzle for optimum flow control
  • Sintered inlet filter electroless nickel plated bronze


  • A regulator equipped with a flow gauge is not accurate when a back pressure in excess of 2 psig exists at the outlet
  • Back pressure is caused by a restriction in the apparatus downstream of the flow gauge
  • Metering valves, kinked hoses or even very long hoses are restrictions that can cause back pressure
  • In applications where back pressure in excess of 2 psig can be expected, a regulator equipped with a flowmeter should be used

Product Attributes

Regulator Type

» Single Stage Regulator

Gas Service

» Air

Delivery Rate

» 5 - 125 psig

Inlet Connection

» CGA-346


» Heavy Duty
» High Capacity

Outlet Connection

» 5/8" - 18 (LH Female)

Gauge Diameter

» 2 1/2"