Harris Model 330 Carbon Dioxide Single Stage Liquid Cylinder Gaseous Withdrawal Regulator 330-500-320 - 3001099

By: Harris Products Group
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Model 330 heavy-duty regulator allows for gas withdrawal from carbon dioxide (CO2) liquid cylinders. Its unique design permits inlet pressures up to 3000 PSIG for use on high pressure cylinders. The Model 301 features a brass body, brass T screw bar adjustment, stainless steel diaphragm, 2.5" brass dual scale gauge, one-piece encapsulated seat design with internal filter and PTFE Teflon® seat and Harris' exclusive self-reseating, tamper-proof internal high pressure safety valve. Model 330 has an auxiliary plugged low pressure port. This model is also UL® listed.


  • Operates on liquid cylinders and high pressure cylinders without damage
  • Unique design allows inlet pressures up to 3000 PSIG
  • Forged brass body and bonnet for longer service life
  • Easy-to-operate brass "T" screw bar handle
  • 2" Brass dual scale easy-to-read gauges
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon® seat from particulate contamination
  • Stainless steel diaphragm for greater strength in adverse conditions
  • Includes an auxiliary plugged low pressure port

General Equipment

Adjusting Screw Brass "T" screw bar
Body Forged brass
Bonnet Forged brass
Certification CGA E-4
Cv 0.37
Delivery Pressure Gauge (PSIG) 600
Delivery Pressure Range (PSIG) 0 - 500
Diaphragm Stainless steel
Duty Heavy
Equipped With Tamper proof, self-reseating, internal high-pressure safety valve
Gas / Gas Service Carbon Dioxide CO2)
Gauges 2” Brass dual scale (psi/kPa)
Inlet Connection CGA 320
Maximum Inlet Pressure (PSIG) 3000
Seat PTFE Teflon®

Gas Regulation

Outlet Connection 1/4" - NPT
Pressure Regulation PSIG/100 PSIG 0.20


Warranty 7 Years