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Pollution Control Stuffing Box (PCSB™)• An enhanced version of Hercules DPSB using “PCSB Adapter Unit”below the BOP section & LUGTM is replaced with PCSB Upper Gland (a.k.a. Hercules HPLUGTM)• If polished rod breaks below stuffing box, flapper closesautomatically• Two independently adjustable packing chambers — primary Cone Packing in DPSB Body & V-Ring acking in PCSB Upper Gland.The V-Rings contain full working pressure, unlike the single Wiper Cone used in a LUGTM• Pollution Control Adapter acceptable to -50˚ F• Pollution Control Adapter meets NACE® MR0175• Base has 1/2" NPT test port• Adaptable to Anti-Pollution Adapter Control Device orHercules SBTM Leak Detector• Primary cone packing can be changed under pressure• Unique misaligning feature reduces need for exact alignment with the pumping unit • Flanged bottom connection available• Available with welded bottom flange connections• Available with 1500 or 2500 PSI Big StuffTM DPSBTM Top Section (& with or without HPLUGTM)
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