HP 703 High Purity - Chrome Plated Brass Regulator

Model HP703

Model HP703 high-purity line regulator for gas purity levels up to grade 5.0.


Model HP703 is a chrome-plated brass single-stage pipeline regulator with a stainless steel diaphragm for pipeline and other applications up to 3000 psig inlet pressure. Model HP703 is available with various delivery pressures, inlet fittings, accessories and other options for a customized regulator to meet specific requirements.


  • 2-1/8"- 302 stainless steel diaphragm eliminates contamination from diffusion or out-gassing
  • One-piece encapsulated seat design with 10 micron sintered internal filter to protect the PTFE Teflon® seat from particulate contamination
  • 2” chrome-plated brass dual scale gauges (psi/bar)
  • Ergonomic ABS plastic knob for improved grip
  • Chrome-plated brass body, bonnet and fittings for years of dependable service
  • Maximum inlet 3000 psig
  • Designed to 1 x 10-8 cc/sec inboard helium leak rate to maintain gas purity levels
  • Equipped with an external relief valve
  • Back panel mountable

Typical Applications

  • Non-corrosive gases
  • Purging
  • Pressure testing
  • Blanketing


Warning -

Cancer and Reproductive Harm -