Harris Model 330 Argon Nitrogen Single Stage Liquid Cylinder Gaseous Withdrawal Regulator 330-350-580 - 3001094

By: Harris Products Group
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Model 330 heavy-duty regulator allows for gas withdrawal from Argon and nitrogen 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) 500
Delivery Pressure Range (PSIG) 0 - 350
Diaphragm Stainless Steel
Duty Heavy
Equipped With Tamper proof, self-reseating, internal high-pressure safety valve
Gas / Gas Service Argon (Ar)
Nitrogen (N2)
Gauges 2” Brass dual scale (psi/kPa)
Inlet Connection CGA 580
Maximum Inlet Pressure (PSIG) 3000
Seat PTFE Teflon®

Gas Regulation

Outlet Connection 9/16" - 18
Pressure Regulation PSIG/100 PSIG 0.20


Warranty 7 Years

Custom Field

Series 330
Gas Argon
Gas Nitrogen
Max Inlet PSIG 3000
Delivery Pressure 0 - 350
Inlet Connection CGA 580
Outlet Connection 9/16" - 18

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