Diaphragm Operated, Pressure Regulating Valve

The JRDL Series line of diaphragm sensed, high pressure regulators have the ability to handle very high pressures and very low flows. USDA and FDA approved soft goods available upon request.

  • High pressure gas
  • Liquid pump systems control
  • Water seal regulation
  • Hyperbaric chambers
  • Air compressors
  • Pressurized ballast tanks
  • Gas transfer systems
  • Gas chromatography
  • Flame ionization


  • Research and development
  • Gas cabinets
  • High pressure gas systems
  • Injection molding
Features & Benefits
  • Ability to reduce high inlet pressures from 1 – 400 psig (0 to 27,6 bar) in one valve
  • Provides superior sensitivity in pressure regulation to the piston operated JRPL, and has a Cv that’s nearly 10x greater than the 0.2 Cv in the JR Series
  • Barstock construction guarantees material integrity and surface finish
  • High flow rate coupled with high rangeability reduces need for reduced trim sizes
  • Optimized internal volume
  • Soft seat material for ANSI Class VI shutoff

Seat Type: Buna-N, EPDM, Viton

Sizes: 1/2″, 3/4″, 1″ (DN15, DN20, DN25)

End Connections: Threaded, Socket Weld, Flanged, Others

Body Materials: 316L Stainless Steel, Hastelloy C, Monel, Alloy 20, others

Cv (Kv): 1.7 (1,46)

Spring Range: 0-50 psi (0-3,4 bar); 0-100 psi (0-6,9 bar); 0-200 psi (0-13,8 bar); 0-400 psi (0-28 bar)


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.

Jorlon Facts and Warranty

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


ATEX Certified

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Related Products

JR Series

High Pressure / Low Flow Pressure Regulating Valves

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