Armstrong 110116MF-307 S-55-3 LV Pump Less Volute

Description

Industrial HVAC loops use Armstrong 110116MF-307 S-55-3 LV for continuous circulation when the replacement pump must be supplied without its volute. Its 1/2 HP three-phase motor accepts 208 to 230 or 460 V, while the maintenance-free SBA, engineered composite impeller, modular shaft, and ceramic-carbon seal support precise circulation service. Confirm the volute fit, motor enclosure, inverter-duty requirements, and shaft alignment before startup.

The Armstrong S-55-3 LV includes a less-volute pump assembly with a three-piece modular shaft and maintenance-free SBA. Its TEFC or ODP inverter-duty-capable motor options require project-specific verification, while the engineered composite impeller supports the specified hydraulic design. Verified data does not include GPM, maximum head, amp draw, RPM, connection size, operating temperature, dimensions, weight, thermal protection, or self-priming capability, so confirm the full replacement configuration.

Key Features of Armstrong 110116MF-307 S-55-3 LV

• 1/2 HP motor supports continuous-run industrial loops and precise HVAC circulation.
• 208 to 230 or 460 V three-phase operation suits industrial power systems.
• Less-volute configuration supports replacement work with compatible S-55 assemblies.
• Maintenance-free SBA reduces routine bearing lubrication and service requirements.
• Engineered composite or Noryl impeller supports the specified hydraulic design.
• Modular three-piece shaft construction supports service-focused pump assembly design.
• Ceramic-carbon mechanical seal helps contain fluid under approved conditions.
• TEFC or ODP inverter-duty-capable motor options require application-specific confirmation.
• Flow, head, amperage, RPM, connections, temperature, dimensions, weight, protection, and warranty require verification.

Why Choose Armstrong 110116MF-307 S-55-3 LV

This Armstrong replacement pump assembly supports industrial HVAC service with maintenance-free bearings and flexible three-phase motor options.

• Build: Modular shaft construction, engineered composite impeller, SBA, and mechanical sealing support compatible replacement applications.
• Value: Reusing a compatible volute can reduce piping changes, labor, equipment downtime, and replacement complexity.
• Audience: Industrial HVAC contractors, pump repair teams, facility engineers, chilled-water technicians, and maintenance specialists can use this assembly.

Applications & Use Cases

Use the Armstrong 110116MF-307 S-55-3 LV for continuous-run industrial loops, precise HVAC circulation, chilled-water service, and compatible large-volute replacement work. Physical dimensions, unit weight, and port reach were not supplied, so verify the volute pattern, impeller clearance, motor access, wiring route, lifting room, and piping alignment before installation.

Warranty & Support

• Warranty: Armstrong USA general terms provide 12 months from installation, not exceeding 18 months from shipment, for applicable non-E.2 products.
• Confirm volute compatibility, motor voltage, phase rotation, shaft alignment, seal condition, and inverter-duty requirements during commissioning.

Inspect the SBA, clean the impeller, verify the flexible assembly, and monitor for vibration or leakage during scheduled maintenance. Purchase the Armstrong 110116MF-307 S-55-3 LV industrial replacement pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.