Model 330-Ar100-580 Single-Stage Flowgauge Regulator


Model 330-Ar100-580 liquid cylinder gaseous withdrawal heavy duty single-stage flowgauge regulator for use with Argon (Ar)


Model 330 flowgauge regulator is designed specifically for gas withdrawal from liquid cylinders with flows of 100 SCFH. 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, Harris' exclusive self-reseating, tamper-proof internal high pressure safety valve and 5/8" - 18" RH (F) outlet connection. This model is also UL® listed.


  • Single-stage, heavy duty flowgauge regulator
  • Designed specifically for liquid cylinder gas withdrawal.
  • Forged brass body and bonnet for longer service life
  • Easy-to-operate brass "T" screw bar handle
  • 2.5" Brass dual scale easy-to-read gauge
  • 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
  • Equipped with tamper proof, self-reseating, high pressure internal safety valve for use on cylinders up to 3000 psig
  • UL® listed


Warning -

Cancer and Reproductive Harm -


Warranty Information

  • 7 Years

What's Included

  • Model 330-Ar100-580 Liquid Cylinder Gas Withdrawal Single-Stage Flowgauge Regulator



Adjusting Screw Brass "T" screw bar
Body Brass
Bonnet Brass
Certification CGA E-4
Delivery Flow Gauge (SCFH) 0-100
Diaphragm Stainless steel
Duty Heavy
Equipped With Tamper proof, self-reseating internal high pressure safety valve
Flow Capacity (SCFH) 100
Gas / Gas Service Argon + Mixes
Gauges 2.5"Brass dual scale
Inlet Connection CGA 580
Maximum Inlet Pressure (PSIG) 3000
Outlet Connection 5/8"" - 18 RH (F)
Seat PTFE Teflon®


Warranty 7 Years