Taco Single-Stage, Double-Suction Horizontal Split Case Pumps (HS Series)

  • Taco HS pumps feature a heavy-duty split casing and a hydraulically and dynamically balanced double-suction bronze impeller. Bearings and mechanical seals can be serviced without removing the top casing, while the removable upper casing provides access to the rotating assembly without disturbing piping. A short, rigid shaft reduces deflection, seal wear and bearing loading.
  • Models: HS060509, HS060511, HS060512 and HS060515.
  • Connection size: 6 inches.
  • Performance: 100–2,000 GPM; 10–250 ft head; 10–100 HP, depending on model.
  • Speeds: Performance curves provided for 1,160, 1,450 and 1,760 RPM.
  • Working pressure: Standard 175 PSIG (1,210 kPa); optional 300 PSIG (2,070 kPa), subject to pressure–temperature limits.
  • Fluid temperature: Up to 250°F (120°C).
  • Connections: ANSI Class 125 or optional Class 250 flanges.
  • Casing and cover: ASTM A48 Class 30A cast iron for Class 125; ASTM A536 Grade 65-45-12 ductile iron for Class 250.
  • Impeller: Bronze, hydraulically and dynamically balanced.
  • Shaft: AISI 1045 carbon steel; optional Type 416 or 410 stainless steel.
  • Wear components: Replaceable bronze casing wear rings and shaft sleeves.
  • Mechanical seal: Carbon rotor, Ni-Resist seat and EPT elastomer.
  • Seal flushing: Standard recirculation line; optional filter and abrasive separator.
  • Base: Reinforced welded steel with integral drip pan and ¾-inch drain; grouting recommended.
  • Drive: Flexible coupling; standard NEMA and IEC motor options.
  • Rotation: Two rotation options available.
  • Quick access to bearings and seals simplifies maintenance.
  • Replaceable wear rings avoid replacing the casing during wear-ring servicing.
  • Efficient double-suction impeller supports economical operation.
  • Rigid shaft reduces vibration, seal wear and bearing loading.
  • Heavy-duty casing improves strength and resistance to distortion.
  • Reinforced base improves alignment and operating stability.
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