Harris Model 8700-2500-540SG Oxygen Ultra High Delivery Pressure Regulator w/ Surge Guard- 3200309

By: Harris Products Group
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Model HP8700 is a single-stage brass regulator that is designed to operate on ultra high-pressure cylinders up to 7500 psig.

The Model HP8700 is suitable for high pressure testing charging accumulators and pressurizing struts for hydraulic systems and aircraft/heavy equipment.

This model features a brass body bonnet and dual scale (psig/bar) gauges ergonomic plastic knob for improved grip and ease of adjustment of the delivery pressure, and one-piece encapsulated seat that is design with internal filter and CTFE (Kel F®) seat. It has a 1/4" NPT outlet with stainless steel 1/4" tube fitting.


  • Operates on high pressure cylinders up to 7500 psig
  • Brass barstock body and bonnet and brass nozzle for longer service life
  • Ergonomic ABS plastic knob for improved grip and precise adjustment
  • 2.5" Brass barstock dual scale easy-to-read gauges (psi/bar)
  • One-piece encapsulated seat design with 10 micron sintered internal filter to protect the PCTFE (Kel-F™) seat from particulate contamination
  • Neoprene diaphragm for greater sensitivity and improved performance
  • 1/4" NPT outlet with stainless steel 1/4" tube fitting
  • Suitable for high pressure testing, charging accumulators and pressurizing aircraft struts
  • Conforms to CGA E-4 standard for gas pressure regulators
  • Equipped with an Inlet surge guard that protects from dangerous adiabatic compression in oxygen gas service.

General Equipment

Adjusting Knob ABS Plastic
Body Brass barstock
Bonnet Brass barstock
Capacity Ultra high pressure
Certification CGA E-4
Cv 0.08
Delivery Pressure Gauge (PSIG) 4000
Delivery Pressure Range (PSIG) 0 - 2500
Diaphragm Neoprene
Equipped With Inlet surge guard
Gas / Gas Service Oxygen
Gauges 2.5" Brass dual scale (psi/bar)
Inlet Connection CGA 540
Maximum Inlet Pressure (PSIG) 3000
Recommended Items/Accessories Panel Mount Nut - PN 9100887
Seat PCTFE (Kel-F)
Supply Pressure Gauge (PSIG) 4000

Gas Regulation

Filter Nickel-plated sintered bronze - 10 micron
Nozzle Brass
Outlet Connection 1/4" NPT outlet with 1/4" stainless steel tube fitting
Pressure Regulation PSIG/100 PSIG 3.3
Seat Return Spring PH17-7 stainless steel


Warranty 1 Year