Two Stage, Miniature, Pressure Reducing Regulators

Premier 4300S Series adjustable, miniature, two stage (1st stage piston, 2nd stage Elgiloy® diaphragm) pressure reducing regulators, are designed for high purity, low-flow gas delivery. Their compact, two stage design provides precise, stable delivery pressures even as the supply pressure decreases. Premier 4300S Series regulators control inlet pressures up to 3000 PSIG (206.84 bar) and have a flow capacity of Cv 0.014.
Premier 4300S Series regulators are available in a wide variety of materials and configurations, making them ideal for use in labs, industrial monitors, disposable / transportable gas cylinders, and for the regulation of a broad range of media.

  • Special Elgiloy® diaphragm reduces gas contamination and diffusion
  • Precise, stable delivery pressure even as the supply pressure decreases
  • Low internal volume promotes quick gas flow stabilization and purging
  • Models are available for both corrosive and non-corrosive service.
  • Major components available in numerous materials
  • Machined bar stock body, interstage body, bonnet and piston eliminates porosity found in castings
  • Numerous porting configurations are available
  • Integral inlet filter
  • Compact size (1.25 in. diameter x 4.7 in. high)
  • Extremely light weight
  • Very competitive pricing
  • Inlet and/or Outlet Gauges
  • Anodized Colors for Aluminum Bodies and Bonnets
  • SilcoNert®  Coating
  • Private Label
SilcoNert® is a registered trademark of SilcoTek