Piston Sensed, Back Pressure Regulating Valves

The JBPH Series is a piston operated back pressure regulator. The 0.5 Cv (0,43 Kv) offers increased flows across its 6000 psi (414 bar) inlet range, while the KEL-F soft seat provides ANSI Class VI shutoff. USDA and FDA approved soft goods available upon request.

  • Research and sampling systems for corrosive and specialty gases
  • Gas chromatography
  • Flame ionization detectors
  • Industrials controls


  • Gas chromatography
  • Flame ionization detectors
  • Industrial controls
Features & Benefits
  • In-line removable plug and trim provides for quick cleaning and maintenance
  • All wetted materials are 316L/316 dual certified Stainless Steel; other materials available on request
  • Large 0.5 Cv (0,43 Kv) offers high flows with setpoints up to 5800 psi (up to 400 bar)
  • Optimized internal volume
  • KEL-F soft seal for ANSI Class VI shutoff
  • Captured vent to monitor seal integrity

Seat Type: KEL-F

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): 0.5 (0,43)

Spring Range: up to 5800 psi (up to 400 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.


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