HERCULES® Critical Service Stuffing Boxes | PCSBTM
Pollution Control Stuffing Box (PCSB™) • An enhanced version of Hercules DPSB using “PCSB Adapter
Unit” below the BOP section & LUG TM is replaced with PCSB
Upper Gland (a.k.a.Hercules HPLUG TM)
• If polished rod breaks below stuffing box,flapper closes
automatically
Cone Packing in DPSB Body & V-Ring Packing in PCSB Upper
Gland.The V-Rings contain full working pressure,unlike the
single Wiper Cone used in a LUG TM
• 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 or
Hercules SB TM 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 Stuff  TMDPSB TM Top Section
(& with or without HPLUG TM)
SPECIFICATIONS PCSB™
Bottom Connection Male or Flanged
Weight 2" 102 lbs. 2-1/2" 107 lbs. 3" 112 lbs.
Height 24-1/2"
Flapper Stainless Steel
Bottom Cones 1
PCSB Packing Gland Cap
Hex Bolts w/Lock Washers
Pollution Control Adapter Spool
Lower Gland for DPSB
Primary Split Cone Packing or optional DOME® Packing
DPSB Compression Bolt
Std. DPSB Body
DPSB Compression Ring
Split Cone Packing
NOTE: V-RING PACKING FOR PCSB IS NOT
INTERCHANGEABLE WITH HTD V-RING PACKING.