Harris HP702 Regulator, Built for Your Gas (CGA Specified at Quote)
The Harris HP702 is a two-stage high purity regulator (up to grade 5.0). Tell us your gas and we will supply the correct CGA inlet. Delivery ranges 0-15, 0-50, 0-125 and 0-250 psig are available from Harris.
How to get a quote
Call 888-641-2267 or use the Chat with us button for a quote. Tell us your gas and anything else we should know, such as the CGA number stamped on your cylinder valve or a different delivery range. You can also contact us by email. Harris offers the HP702 with CGA 280, 296, 300, 320, 326, 346, 350, 500, 510, 540, 555, 580 and 590 inlets. Not sure which CGA you have? See our CGA Charts.
We also list the most common connections as individual products:
- CGA 320 for carbon dioxide
- CGA 346 for USP medical air
- CGA 350 for hydrogen and flammable gases
- CGA 500 for gas mixtures
- CGA 540 for oxygen
- CGA 580 for nitrogen, argon, helium
- CGA 590 for industrial air
Specifications
- Two-stage design, chrome-plated brass body (Harris now builds the HP702 in nickel-plated brass)
- 2-1/8″ 302 stainless steel diaphragm, no neoprene diaphragms
- PTFE seat and seals; seat protected by a 10 micron sintered inlet filter
- External relief valve, standard on the HP702
- Inboard helium leak rate 1×10-8 cc/sec
- 2″ dual-scale gauges
- Maximum inlet pressure 3000 psig, except CGA 300 and 510 versions, which have a 400 psig inlet gauge
- Flow coefficient Cv 0.15; delivery changes only about 0.04 psig per 100 psig drop in cylinder pressure
- Purity: high purity up to grade 5.0 (99.999%)
- Outlet: pipe thread outlet fitting with 1/4″ MNPT needle valve
Harris delivery ranges for this model: 0-15, 0-50, 0-125 and 0-250 psig. Tell us your working pressure and we will help you pick a range with your setpoint near the middle.
Typical applications
- Gas chromatography carrier and detector gases up to grade 5.0
- Purging, pressure testing and blanketing
- CO2 incubators and general laboratory gas supply
Not sure this is the right regulator? Read our Regulator Buying Guide, check the CGA Charts, or call 1-888-641-2267 and our team will match the regulator to your application.




