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The Big Stuff High-Performance Lubricating Upper Gland (HPLUG) provides a secondary seal against possible environmental leaks in the Hercules™ HP Big Stuff stuffing box and must be used with an anti-pollution adapter or leak detector. Models can be NACE MR0175 and include V-ring packing and grease zerks for periodic greasing. Please contact customer service when adapting the HPLUG to an existing Hercules stuffing box.
Big Stuff High-Performance Lubricating Upper Gland Specifications
|Available rod sizes (inches)||1⅛, 1¼, 1½, and 1¾|
|Available V-ring packing||NBR, HSN, FMK, or Kevlar|