Harris HP750-250-540 Single-Stage Servo-Dome Non Corrosive Gas Regulator - 3000951

By: Harris Products Group
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Model HP750-250-540 constant pressure, high flow dome loaded regulator for use with non-corrosive gas

Model HP750 series is a high pressure, high flow regulator system. The key to the performance of this regulator is the servo-dome load technology where the pilot light and dome regulator are integrated into one body with no external tubing. The servo-dome load features allow the regulator to supply high flow rates with straight line pressure regulation. Typical applications include high flow laser assist gases, pressure transfer, blanketing and high flow manifolds and lasers. This model features brass barstck body, bonnet and dual scale gauges, a one-piece encapsulated seat design with 10 micron filtration and PTFE Teflon® seat and tamper proof, self-reseating internal safety valve.


  • Servo-dome load technology allows regulator to supply high flow rates with straight line pressure regulation
  • Automatically adjusts the regulator as the cylinder pressure declines providing steady outlet pressure and flow rate without user adjustment
  • Ergonomic Noryl plastic knob for easy grip and precise adjustment
  • Brass barstock body and bonnet for longer service life
  • Neoprene diaphragm for better pressure control
  • 2.5" Brass dual scale (psi/bar) easy-to-read gauges
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon® seat from particulate contamination
  • Tamper-proof, self-reseating internal safety valve
  • Conforms to CGA E-4 standard for gas pressure regulators


Adjusting Knob Noryl black plastic
Body Brass barstock
Bonnet Brass barstock
Capacity Constant pressure
high flow
Certification CGA E-4
Cv 0.55
Delivery Pressure Gauge (PSIG) 400
Delivery Pressure Range (PSIG) 0 - 250
Diaphragm Teflon®-coated nylon reinforced neoprene
Equipped With Tamper-proof, self-reseating internal safety valve
Filter Nickel-plated sintered bronze - 10 micron
Gas / Gas Service Non-Corrosive
Gauges 2.5 in. Brass dual scale (psi/bar)
Inlet Connection CGA 540
Maximum Inlet Pressure (PSIG) 3000
Nozzle Brass
Outlet Connection 1/2 in. NPT (F)
Pressure Regulation PSIG/100 PSIG 0.5
Recommended Items/Accessories Bushing - 1/2 in. NPT (M) x 1/4 NPT (F) - PN 9005806 Panel Mounting Kit - PN 9100887 Adaptors - 1/2 in. NPT (M) x 1/4 in. NPT (F) - PN 9005806 Cylinder Adapter Kits: CGA 540 - PN 9103615
CGA 580 - PN 9103616
Seal PTFE Teflon®
Seat PTFE Teflon®
Supply Pressure Gauge (PSIG) 4000


Warranty 1 Year