Harris Model 450-50-510P Propane Single Stage Stainless Steel Diaphragm Regulator - 3002495

By: Harris Products Group
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Model 450 is an economically priced industrial-duty, regulator that has premium features found only in high-priced regulators. The 450 has a stainless steel diaphragm and a Harris exclusive internal tamper-proof self-reseating safety relief device. Can be used with any of the other welding grade liquid petroleum gases. NOT FOR USE WITH ACETYLENE.


  • Economically priced heavy-duty single-stage regulator
  • Premium features generally found in high priced regulators
  • Brass "T" screw bar adjusting handle for easier adjustment
  • Brass body and bonnet for longer service life
  • Stainless steel diaphragm for safety and greater strength in adverse conditions
  • 2.5" Brass dual scale easy-to-read gauges
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon® seat from particulate contamination
  • Equipped with a tamper-proof, self-reseating internal safety valve
  • UL® listed
  • Designed specifically for propane service, but can be used with any of the other welding grade liquid petroleum gases. NOT FOR USE WITH ACETYLENE

General Equipment

Adjusting Screw Brass "T" screw bar
Body Brass
Bonnet Brass
Certification CGA E-4
UL® listed
Cv 0.17
Delivery Pressure Gauge (PSIG) 100
Delivery Pressure Range (PSIG) 0 - 50
Diaphragm Stainless steel
Duty Heavy
Equipped With Tamper proof, self-reseating, internal safety valve
Gas / Gas Service LPG
Any liquid petroleum gases
NOT for use with Acetylene
Gauges 2.5" Brass dual scale (psi/kPa)
Inlet Connection CGA 510P
Maximum Inlet Pressure (PSIG) 500
Seat PTFE Teflon®
Supply Pressure Gauge (PSIG) 400

Gas Regulation

Outlet Connection 9/16" - 18 LH
Pressure Regulation PSIG/100 PSIG 0.30


Warranty 7 Years