HP 3520 High Flow Two Gauge Regulator

Model 3520-050 1/2" NPT(F) Inlet/Outlet Regulator


High-flow two gauge inline manifold regulator


Model HP3520 is a brass barstock in-line manifold regulator for pipeline and other applications up to 3000 PSIG inlet pressure. Regulator is suitable for non-corrosive high flow gas applications, high-purity gas applications, research sample systems gases, process analyzer gases, bulk gas distribution systems, laser gas systems, and emission monitoring systems gases.


  • 2-3/4” stainless steel diaphragm eliminates contamination from diffusion or outgassing
  • One-piece encapsulated seat design with 10 micron sintered internal filter to protect the PTFE Teflon® seat from particulate contamination
  • Brass barstock body, bonnet and fittings
  • 2-1/2” brass dual scale gauges (psi/bar)
  • Six port configuration, three high pressure and three low pressure
  • 1/2” NPT (F) inlet and outlet connections
  • Maximum inlet pressure 3000 PSIG (500 PSIG for 15 PSIG models)
  • Conforms to CGA E-4 standard for gas pressure regulators


Warning -

Cancer and Reproductive Harm -


Warranty Information

  • 1 Year

What's Included

  • One Model HP3520 Regulator



Adjusting Knob ABS plastic
Body Brass barstock
Bonnet Brass barstock
Capacity High flow
Certification CGA E-4
Cv 0.55
Delivery Pressure Gauge (PSIG) 100
Delivery Pressure Range (PSIG) 0 - 50
Diaphragm 2.75” 302 Stainless steel
Equipped With External, self-seating captured vent
Filter Nickel-plated sintered bronze – 10 micron
Gas / Gas Service Non-Corrosive
Gauges 2.5" Brass dual scale (psi/bar)
Inlet Connection 1/2" NPT (F)
Maximum Inlet Pressure (PSIG) 3000
Nozzle Brass
Outlet Connection 1/2" NPT (F)
Pressure Regulation PSIG/100 PSIG 1.6
Recommended Items/Accessories Cylinder Adaptor Kit – CGA 540 – PN 9103615; Cylinder Adaptor Kit – CGA 580 – PN 9103616; Brass Bushing to Convert Ports– ½” NPT (M) x ¼” NPT (F) – PN 9005806
Seal PTFE Teflon®
Seat PTFE Teflon®
Seat Return Spring 17-7 Stainless steel


Warranty 1 Year