• High Performance Lubricating Upper Gland (HPLUG)

    Description

    • Provides a secondary seal for stuffing boxes
    • Allows installation of Hercules™ stuffing box leak detector or APA control device
    • Fits any Hercules™ classic model stuffing box
    • Zerk fitting for periodic greasing using ordinary NLGI-2 automotive chassis lubricant
    • NBR V-ring packing standard (optional: HSN or FMK V-ring; or braided Kevlar)
    • Brass packing support rings are supplied with HSN, FMK, or Kevlar packing
    • Rod sizes: 1-1∕8", 1-¼", 1-½", 1-¾"
    • Body and cap: ductile iron
    • Upper/Lower packing rings: MDS Nylon (Bronze-optional)
    • Uses same bolts as Hercules LUG