Mesura S5 & S5B

  • Description
  • Technical Data


The S5 series of regulators are direct acting, lever style regulators available with or without balanced trim.
The S5 series is available in a variety of body configurations and also features an optional integrated slam-shut valve.
The SSV is available with over pressure shut off (OPSO) and under pressure shut off (UPSO).
The S5 features an open throat allowing for faster response times and multiple orifice sizes to meet your application requirements.
The S5B features a balanced inlet, allowing for maximum inlet pressure to be used on an 11/16” orifice, providing higher capacity without sacrificing the reliability and dependability of a self operated regulator.


  • ANSI B109.5 (Draft)

Inlet Pressure:

  • Up to 125 psig (8.6 barg)

Outlet Pressure Ranges:

  • 5” w.c. to 5.8 psig

Regulating Accuracy Classes:

  • +2/-1” w.c.
  • +/- 2” w.c.
  • +/- 1% ABS
  • +/-2% ABS
  • AC5
  • AC10

Working Temperature Range

  • -22oF to 140oF (-30oC to 60oC)

Inlet/Outlet Connections

  • 1” NPT
  • 25” NPT
  • 5” NPT
  • 2” NPT