Mark 627 Series – Gas Service Regulator

The Mark 627 is a self-operated, pressure-reducing regulator that provides accurate regulation and tight shutoff on low- or high-pressure systems. Use on air, natural gas, or a variety of other gases.

The Mark 627 handles inlet pressures up to 2000 psi (137,9 bar). It features a tamper-resistant protective cap and the top entry design allow easy in-line maintenance. The standard 316 stainless steel orifice comes in six different sizes. The carbon steel body has FNPT end connections and is available in 3/4″ (DN20), 1″ (DN25), and 2″ (DN50 sizes).


  • Inlet pressures to 2000 psi (137,9 bar)
  • Tight shutoff
  • Top entry design for easy in-line maintenance
  • Tamper-resistant protective cap
  • 316 Stainless Steel orifice standard, multiple sizes