Dungs FRS Gas Appliance Pressure Regulator

The Dungs FRS series gas pressure regulators are for appliances in industrial and commercial applications.

FRS 7 ../6 Series and FRS 5… Series

The Dungs FRS gas appliance pressure regulators are appropriate for high-efficiency appliances, high-turndown appliances, appliances using direct spark ignition or hot surface ignition, and other high-performance applications requiring a regulator. These appliance regulators are suitable for dry natural gas, propane, butane, air, and inert gases. The FRS does not contain any non-ferrous metals and is appropriate for gases containing no more than 0.1 % by volume, dry H2S. A “dry” gas has a dew point lower than +15 °F, and its relative humidity is less than 60%.

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Features & Benefits

Dungs FRS 7../6 Series and FRS 5... Series

The FRS 7.../6 Series regulators are threaded, while the FRS 5… are flanged balanced. The pressure regulators are spring-loaded with an adjustable setpoint and feature an internal sensor for regulating output pressure.

  • Input pressures to 10 PSI and NPT ½” to NPT 3” thread connections (FRS 7../6)
  • Input pressures to 7 PSI and DN 40 to DN 150 flanged connections (FRS 5... Flanged)
  • Heavy-duty diaphragm construction for durability and strength
  • Steady, precise, and instantaneous regulation of the outlet pressure
  • Lock-up type regulator
  • A factory-installed vent limiter

 

NPT Threaded VersionsISO Flanged Versions
  • FRS 705/6 (1/2” NPT)
  • FRS 707/6 (3/4” NPT)
  • FRS 710/6 (1” NPT)
  • FRS 712/6 (1 1/4” NPT)
  • FRS 715/6 (1 1/2” NPT)
  • FRS 720/6 (2” NPT)
  • FRS 725/6 (2 1/2” NPT)
  • FRS 730/6 (3” NPT)
  • FRS 5040 (1 1/2”)
  • FRS 5050 (2”)
  • FRS 5065 (2 1/2”)
  • FRS 5080 (3”)
  • FRS 5100 (4”)
  • FRS 5125 (5”)
  • FRS 5150 (6”)

 

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