Model 450 Regulator
Model 450-125-540 Shown


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Model 450

Description: Single Stage Stainless Steel Diaphragm Regulator

The Model 450 is an economically priced industrial duty regulator, but with premium features found only in high priced regulators.  The 450 has a stainless steel diaphragm and a Harris exclusive tamper-proof, self-seating safety relief device.

Pressure Control
  • Features:
    • Economically priced industrial duty regulator
    • Stainless Streel Diaphragm
    • 7-Year Warranty
    • Made in the USA
    • Capacity:  Heavy Duty
    • Cv:  0.17
    • Gauges:  2.5" Brass
    • Pressure Regulation:  0.3 PSIG/100 PSIG
    • Seat:  One-piece encapsulated seat design with internal filter and a PTFE Teflon® seat
    • Certifications:  UL® listed/CGA E-4
    • Weight:  4.6 lbs. / 2.09 kg.
    Part NumberModel NumberCapacityStageGaugesGasInletOutletCertifications
    3002493450-15-300Heavy DutySingle2.5" BrassAcetylene
    CGA 3009/16”-18 LHCGA E-4
    3002494450-15-510Heavy DutySingle2.5" BrassAcetylene
    CGA 5109/16”-18 LHCGA E-4
    30002498450-125-580Heavy DutySingle2.5" BrassArgon
    Nitrogen
    Helium
    CGA 5805/8”-18 RHCGA E-4
    3002495450-50-510PHeavy DutySingle2.5" BrassLPG
    CGA 510P9/16”-18 LHCGA E-4
    3002496450-50-540Heavy DutySingle2.5" BrassOxygen
    CGA 5409/16”-18 RHCGA E-4
    3002497450-125-540Heavy DutySingle2.5" BrassOxygen
    CGA 5409/16”-18 RHCGA E-4
    3002499450-200-540Heavy DutySingle2.5" BrassOxygen
    CGA 5409/16”-18 RHCGA E-4
  • Part NumberMax Inlet PressureDelivery Pressure RangeDelivery Pressure GaugeSupply Pressure GaugeHeightWidthLengthWeightPressureCv
    30024973000 PSIG0-125 PSIG200 PSIG4000 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    300024983000 PSIG0-125 PSIG200 PSIG4000 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    3002493500 PSIG0-15 PSIG30RZ PSIG400 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    3002494500 PSIG0-15 PSIG30RZ PSIG400 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    30024993000 PSIG0-200 PSIG400 PSIG4000 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    3002495500 PSIG0-50 PSIG100 PSIG400 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
    30024963000 PSIG0-50 PSIG100 PSIG4000 PSIG6.62"7.28"4.75"4.6 lbs.3 PSIG/100 PSIG0.17 Cv
  • Information SheetOwner's ManualSafety GuidelinesCylinder Regulator Installation Video