Harris Model 8700-800-350 Hydrogen Methane Ultra High Delivery Pressure Regulator - 3200271

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
  • Urethane diaphragm for greater flexibility
  • 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


Adjusting Knob ABS black plastic
Body Brass barstock
Bonnet Brass barstock
Capacity Ultra high pressure
Certification CGA E-4
Cv 0.08
Delivery Pressure Gauge (PSIG) 1000
Delivery Pressure Range (PSIG) 0 - 800
Diaphragm Urethane
Filter Nickel-plated sintered bronze - 10 micron
Gas / Gas Service Arsine
Carbon Monoxide
Natural Gas
Gauges 2.5 in. Brass dual scale (psi/bar)
Inlet Connection CGA 350
Maximum Inlet Pressure (PSIG) 3000
Nozzle Brass
Outlet Connection 1/4 in. NPT outlet with 1/4 in. stainless steel tube fitting
Pressure Regulation PSIG/100 PSIG 303
Recommended Items/Accessories Panel Mounting Nut - PN 9100887
Seat PCTFE (Kel-F®)
Seat Return Spring PH 17-7 Stainless steel
Supply Pressure Gauge (PSIG) 4000


Warranty 1 Year