Harris HP743 Stainless Steel Line Regulator
The Harris HP743 is a single-stage stainless steel line regulator for gas pipelines and point-of-use stations, rated for up to 3000 psig inlet pressure. A line regulator takes gas from a main supply line (for example, downstream of a cylinder regulator or manifold) and sets a stable delivery pressure right at the instrument. Its 316L stainless steel body, diaphragm and fittings suit grade 6.0 (99.9999%) and higher gases, corrosive gases, and harsh or corrosive environments. See all models in our Line Regulators.
Specifications
- Single-stage pipeline (line) regulator
- Body and fittings: 316L stainless steel barstock; bonnet: nickel-plated brass barstock
- 1-11/16″ 316L stainless steel diaphragm; 316L stainless steel nozzle and seat return spring
- PTFE seat and seals; one-piece encapsulated seat protected by a 10 micron sintered stainless steel filter
- Inboard helium leak rate 1×10-9 cc/sec
- 2″ stainless steel dual-scale delivery gauge (psi/bar)
- Maximum inlet pressure 3000 psig
- Delivery ranges: 0-15, 0-50, 0-125, 0-250 or 0-500 psig
- Inlet and outlet: 1/4″ FNPT ports
- Flow coefficient Cv 0.08; pressure regulation 1.8 psig per 100 psig change in inlet pressure
- Weight 2.68 lb
- Front or back panel mountable
- Relief valve is not standard on the HP743 (Harris option 4); ask us if your system needs one
Typical applications
- Corrosive gases and high purity gas pipelines
- Gas chromatography and process analyzers
- Research sample systems and EPA protocol gases
- Laser gas systems and emissions monitoring
Options
Harris also builds the HP743 with a 1/4″ FNPT diaphragm valve outlet, 1/4″ MNPT nipple, 1/4″ or 1/8″ tube fittings, a 1/4″ MNPT or tube fitting inlet, no gauge, a relief valve, or a helium leak certificate. Front panel mount kit (Harris P/N 9100871) and wall mounting bracket (P/N 9101242) are 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.
