HXR Series Insitu Temperature Compensating Regulator

HXR Series Insitu Temperature Compensating RegulatorThe HXR Series Insitu pressure regulator was designed to offset the Joules-Thompson temperature effect. This effect is the cooling that occurs during a pressure drop as a gas passes through an orifice. With the HXR Series, the cooling is offset by placing the pressure regulating orifice at the tip of the probe assembly in the process line. As a result, the pressure reduced sample gas passes through a section of the probe that has heat exchange fins. As the cooled sample gas flows through this section of the probe assembly, it is reheated by heat picked up from the warmer high pressure process gas flowing around the outside of the probe assembly, thus returning the sample to the original process line working temperature and also preventing the condensation of liquids in the sample.


  • 316L stainless steel construction
  • Electropolished body with better than 25 Ra finish in diaphragm cavity
  • Operating temperatures of −40°F (−40°C) to 175°F(80°C)
  • Bubble tight shutoff
  • Maximum inlet working pressure is 3000 psig at maximum temperature
  • Outlet pressure ranges are 10, 25, 50, 100, 250 and 500 psig
  • Available in 1/2″, 3/4″ and 1″ MNPT probe gland connections
  • Unit weight is 2.5 pounds
  • Proof pressure is 2 times maximum working pressure
  • Burst pressure is 4 times maximum working pressure
  • Weight: 2.6 lbs (1.18 kg)
  • See Outline and mounting dimensions for insertion lengths


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