High-Temperature Stuffing Boxes

Designed for extreme applications, our stuffing box is manufactured for high-temperature, high-pressure, and corrosive conditions.


High-Temperature Double-Packed Stuffing Box (HTD)

  • Designed for high-pressure and high-temperature wells
  • Meets NACE MR0175
  • Lower packing can be temporarily energized by loosening lock ring and tightening upper body to allow changing primary packing under pressure
  • Dual packing chamber
  • Primary packing can be changed under pressure
  • Versatile chamber design accepts different types of packing, including V-ring, standard crown ring compression, and Kevlar*/PTFE square braid rope packing
  • Can be installed on API flanged trees using a Hercules™ companion flange
  • Single-pack version available for low-profile installations

* Kevlar is a trademark of E.I. du Pont de Nemours and Company.


High-Temperature Stuffing Boxes

Working pressure 3,000 psi
Bottom connection Male
  • 2 in.‐31 lb
  • 2½ in.‐32 lb
  • 3 in.‐33 lb
  • 4 in.‐35 lb
Height (includes pin connection) 14 in.
Body, base, and cap material Alloy steel*
Lock nut material Carbon steel*
Split bushings material Bronze*
Rod sizes 1⅛ in., 1¼ in., 1½ in., 1¾ in.
Packing OD 2¼ in.
Stack height (primary or secondary) 2½ in.
*Corrosion-resistant materials and coatings available; contact customer service.
Packing Type Max. temperature
NBR V-ring 250 °F (121 °C)
HSN V-ring 325 °F (163 °C)
FKM V-ring 400 °F (204 °C)
Kevlar/PTFE 540 °F (282 °C)
  • Production Service Hookup Brochure

A technician works on a high-temperature stuffing box during manufacturing