JBDL Series Back Pressure Valves

The JBDL Series is a diaphragm operated, balanced trim, back pressure regulator. The 1.95 Cv offers increased flow across its 1200 psi inlet range, while the Kel-F soft seat provides ANSI Class VI shutoff. Four set spring ranges and three soft seal options offer the customer flexibility in a number of applications and environments. These valves are designed to regulate a variety of gases and liquids from pump and compressor control to process pressure control where high flows and low pressures are required.


  • In-line removable plug and trim provides for quick cleaning and maintenance
  • Barstock construction guarantees material integrity and surface finish
  • Balanced trim offers high flows with minimal lockup
  • Optimized internal volume
  • Proprietary Jorlon diaphragm provides exceptionally long life
  • Kel-F soft seat for ANSI Class VI shutoff