Premier Control Technologies Logo

Premier Control Technologies

Flow, pressure, level and temperature solutions

JR Series High Pressure Low Flow Pressure Regulating Valve

Delivery icon

Express Delivery available, less than 1 week!

  • Express delivery available, less than one week!
  • Bar stock construction with many exotic materials available
  • Longlife Jorlon diaphragm

JR Series from LowFlow is a gas pressure reducing valve designed for high pressure and low flow applications. JR series is typically used in research and sampling systems for general, corrosive and speciality gas and liquid service. Inlet pressures can be up to 276 bar (4000 PSI) with 6 different spring rates available to control the ourlet pressure down to as little as 0.3 bar (5 PSI) or up to 52 bar (750 PSI).

JR Series are constructed from 316L stainless steel bar stock to guarantee material integrity and surface finish, exotic materials of Hastelloy C, Monel and Alloy 20 are also available.

JR series is available in DN8, DN10 or DN15 (1/4”, 3/8”, ½”) sizes with a wide range of process connections including threaded, socket weld and flanged.

Other features of the JR Series include:

  • Top entry design facilitates in-line cleaning and maintenance
  • High flow rate coupled with high rangeability reduces need for reduced trim sizes
  • Proprietary Jorlon diaphragm material provides exceptionally long life


  • Cannabis / Hemp Extraction / Supercritical CO2
  • Flame ionization detectors
  • General, corrosive & specialty gas and liquid service
  • Gas chromatography
  • Hydrogen Fuel Cells
  • Industrial controls
  • Pilot Plants
  • Research & sampling systems

Other features

  • Seat Type: PTFE, PEEK, KEL-F
  • Soft seal material for ANSI Class VI shutoff
  • Optimized internal volume
  • Cv available: 0.012, 0.03, 0.08, 0.20
  • Spring Range: up to 52 bar (750 psi)

Product enquiry

Please fill out the form below and one of our sales representatives will contact you promptly.