Mustang® Heated Regulator

The Mustang® Heated Regulator (MHR®) prevents liquid condensation from Joule Thomson cooling in natural gas mixtures when pressure reduction is required. The process temperature is controlled using PID logic throughout the pressure reduction cycle with both pre- and post-regulation heat exchangers along a tortuous path. The final process pressure is set manually using an adjustable regulator control across a specified range.

The MHR assembly provides safe and reliable temperature control and pressure reduction essential to ensuring the performance of gas analyzers.


  • Temperature Controller in Class 1, Division 1 & 2, or Zone 1 Exd Enclosure
  • Proportional-Integral-Derivative (PID) controller
  • Single-stage design
  • Piston pressure sensing elements
  • 20 micron inlet filter
  • Unique Heat Exchange Chamber
  • Adjusting Screw w/ lock nut
  • Two section design for easy disassembly from heat plate attachment


  • Offsets Joule-Thomson cooling providing continuous gas sample conditioning
  • Protects analyzers & helps preserve sample integrity
  • Prevents condensation
  • Minimizes regulator freeze ups
  • Maintains outlet pressure during large inlet pressure swings
  • Easy to mount in small or densely populated enclosures


  • cETLus Certified
  • ATEX/IECEx Certified


Maximum allowable working pressure 3750 psig (258 bar)
Temperature range -15°F (-26°C) to 300°F (149°C)
Port sizes 1/4” female NPT
Wetted materials Machined parts: 316 stainless steel/NACE compliant
All other metal parts: stainless steel/NACE compliant
Conduit connection 3/4” female NPT
Internal volume 5 cc
Cv Coefficient 0.023
Thermal cut-off Normally opens at 284°F (140°C)
(other ranges available upon request)
Electrical enclosure classification Class 1, Division 1 & 2, Groups B, C, D
Controller options Watlow®
Oven Industries
Outlet pressure range options 0-10 (0-0.69 bar)
0-25 (0-1.72 bar)
0-50 (0-3.45 bar)
0-100 (0-6.89 bar)
0-250 (0-17.24 bar)
0-500 (0-34.47 bar)
Input Supply Voltage 115 VAC, 215 Watts, 50/60 Hz, ± 10%
208/230 VAC, 215 Watts, 50/60 Hz, ± 10%
24 VDC, 155 Watts
Seal options James Walker
other materials available upon request