Low Set Pressure / Very Low Flow Pressure Regulating Valve

The JRLL Series are low flow regulators designed and built specifically for very low pressure applications. The durable valve body and metal trim components are machined from 316L SST barstock. The valve is outfitted with a sensitive PTFE Jorlon diaphragm for accurate low pressure sensing and Teflon, PEEK, KEL-F and EPDM seats for ANSI Class VI shutoff. USDA and FDA approved soft goods available upon request.

  • Ideal for low pressure regulation of gases
  • Sparging
  • Tank blanketing


  • Research and development
  • Gas cabinets
  • High pressure gas systems
  • Injection molding
Features & Benefits
  • Stable outlet pressure setpoints at very low pressure
  • Very low set point offset (droop) especially at higher inlet pressures
  • Top entry design facilitates in-line cleaning and maintenance
  • Barstock construction guarantees material integrity and quality surface finish
  • Jorlon diaphragm material provides exceptionally long life

Seat Type: PTFE, PEEK, KEL-F

Sizes: 1/4′, 3/8″, 1/2″ (DN8, DN10, DN15)

End Connections: Threaded, Socket Weld, Flanged, others

Body Materials: ASTM A479 316L SST, others

Cv (Kv): 0.012, 0.03, 0.08, 0.20 (0,01; 0,026; 0,07; 0,17)

Spring Range: 1 – 75 psi (0,7 – 5,2 bar) and 25 – 100 psi (1,7 – 6,9)


Jorlon Facts and Warranty

The majority of LowFlow regulators come with the Jorlon diaphragm and a lifetime diaphragm warranty.

J Series Product Matrix

A quick reference guide comparing the J Series regulators.

J Series Selection tool

This tool is designed to help you select the correct J Series regulator.


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High Pressure / Low Flow Pressure Regulating Valves

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