JFD Design Packings

JFD Design Packing

JFD Design Packing

  • J-Design is a seal ring solution geometrically designed to resist over-tightening, which leads to premature seal failure.
  • The dual-design seal ring has a rigid thermoset plastic core that resists crushing, and is surrounded by tough, yet flexible sealing lips that won’t tighten when the packing is adjusted.
  • Longer packing life results in reduced maintenance cost.
  • The J-Design has initial interference and is pressure actuated.
  • Adjustment of the packing is only to secure the packing in the stuffing box to prevent movement. This easy-adjustable packing has gained acceptance to the point of standardization by plunger pump manufacturers.
  • The sealing lips are backed-up by rigid plastic or composite adapters designed especially to work with the J-Design packing assembly.
  • This combination of construction features prevents the usual nesting and crushing that may result from excessive gland or fluid pressure


  • Adapters for V-Packing
  • Adapters for other configurations
  • Anti-extrusion devices
  • Engineered packing assembly components

Quick Contact

    Please click on the related Plunger Packing product names for more detail
    1. SF Design Packings
    2. SSF Design
    3. ASF Flat Back Seal
    4. AH Design Header Ring
    5. Adapters