Close-up image of a dome packing

Stuffing Box Packing

Whether you have a mild or extreme application, our various stuffing box packing compounds will match your well conditions.

  • Description Description
  • Ruler Specifications
  • Resources Resources
Description

We offer a broad range of sizes, materials, and designs to best fit your stuffing box configuration. Our Hercules packing is compatible with various models of stuffing boxes.

Dome Packing

  • Rod sizes: 1⅛, 1¼, 15⁄16, 1⅜, 1½, or 1¾ in.
  • Dramatically reduces stuffing box failures and maintenance costs
  • Rubber packing with PTFE-blended seal ring
  • PTFE-blended seal ring minimizes contact between rubber and polished rod
  • Low coefficient of friction
  • Less heat buildup
  • Lower drag on polished rod
  • Unique bowl shape converts vertical compression forces into radial forces for a tight seal around polished rod
  • Automatically compensates for changes in flowline pressure
  • One-time conversion kit to retrofit most cone-packed stuffing boxes
  • Designed for easy replacement using packing pullers (available from National Oilwell Varco—P/N 99756K14)
  • S. patent number: 5622371

Sure-Pak™ Packing

  • Pressure-handling capabilities to 2,500 psi
  • Rubber packing with unique PTFE seal ring
  • Effectively dissipates heat
  • Enhances fluid sealing control
  • Longer packing service life
  • Fewer packing gland adjustments required
  • S. patent number: 5845909
Specifications

Packing Material Specifications

Material

Max. % H2S

Max. % CO2

Max. temperature

NBR DOME

2%

Not recommended

250 °F (121 °C)

HSN DOME

10%

20%

325 °F (163 °C)

TFEP (Aflas) DOME

35%

15%

450 °F (232 °C)

Resources
  • Production Service Hookup Brochure