Harris HP703 General Purpose Line Regulator
The Harris HP703 is a single-stage nickel-plated brass line regulator with a stainless steel diaphragm, rated for up to 3000 psig inlet pressure. It provides a constant delivery pressure at the point of use for general laboratory gas lines, and Harris rates it for non-corrosive gases up to grade 5.0 (99.999%). The stainless steel diaphragm makes it suitable for both industrial and analytical work, including chromatographic carrier gas. See all models in our Line Regulators.
Specifications
- Single-stage pipeline (line) regulator
- Body, bonnet and fittings: nickel-plated brass (chrome plated in Harris’s 2021 catalog)
- 2-1/8″ 302 stainless steel diaphragm, no neoprene diaphragms
- PTFE seat and seals; one-piece encapsulated seat protected by a 10 micron sintered filter
- External relief valve, standard on the HP703
- Inboard helium leak rate 1×10-8 cc/sec
- 2″ dual-scale delivery gauge (psi/bar)
- Maximum inlet pressure 3000 psig
- Delivery ranges: 0-15, 0-50, 0-125 or 0-250 psig
- Inlet and outlet: 1/4″ FNPT ports
- Flow coefficient Cv 0.17; pressure regulation 1.8 psig per 100 psig change in inlet pressure
- Weight 2.92 lb
- Back panel mountable
Typical applications
- Non-corrosive laboratory gas lines
- Gas chromatography carrier gas up to grade 5.0
- Purging, pressure testing and blanketing
Options
Harris also builds the HP703 with a 1/4″ MNPT nipple outlet, 1/4″ MNPT or FNPT needle valve, 1/4″ FNPT diaphragm valve, 1/4″ or 1/8″ tube fittings, hose barbs, a 1/4″ MNPT, tube fitting or hose barb inlet, no gauge, or no relief valve. A wall mounting bracket (Harris P/N 9101242) is available. Contact us for a quote on any configuration.
Not sure this is the right regulator? Read our Regulator Buying Guide or call 1-888-641-2267 and our team will match the regulator to your application.
