• 8305 McIntyre Road, Edmonton, Alberta, Canada T6E 5J7

Grizzly Environmental Stuffing Box

Grizzly Environmental Stuffing Box (GESB) wellhead accessory gives complete control over contamination from worn packing and broken polished rods while it lubricates the polished rod. if a polished rod breaks and the rod string falls through the GESB, the stuffing box and B.O.P., and you are protected. The spring loaded valve flapper snaps shut keeping the well contained. The GESB can be used with a pressure gauge, sight gauge, or other leak indicator to provide notification that your packing is wore. Lubricating the polished rod allows the packing to last longer therefore reducing the amount of time spent changing packing over the life of the well.


Product Description


•Nickel super-alloy coated for maximum corrosion and abrasion resistance
• 2000 psi working pressure, 3000 psi test pressure
• Fits 1-1/4” and 1-1/2” polished rod
• Multi-use containment chamber can be used as:
– Polished rod lubricator when filled with grease
– Leak detection and containment
– Secondary pressure containment
– Blow-Out Preventer if polished rod breaks
• Wear block on flapper and packing set available in Delrin or Brass
• Bolted top design for easy service
• Material meets NACE MR01-75
• 316 stainless steel flapper and assembly
• Three 1/2” NPT body holes (oil fill, oil drain, & shutdown/leak detection)
• Adapts easily to WNS and Hercules stuffing boxes
• 2-7/8” EUE bottom connection for added versatility
• All units are made in an ISO 9001 quality system
• Standard packing
• 1-1/4” x 2-1/4” x 3”
• 1-1/2” x 2-1/4” x 3”

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