Armstrong 4380 25HP Close Coupled Vertical In-Line Pump 6 X 6 X 11.5

Description

Municipal water transfer demands Armstrong 4380 for large commercial HVAC distribution and high-capacity water movement. This 25 HP close-coupled vertical in-line pump uses a 6 x 6 x 11.5 configuration, three-phase power, and a maximum 11.5-inch impeller diameter. Confirm the 175 PSI pressure rating, seal material, motor protection, and back pull-out service clearance before startup.

The Armstrong Series 4380 uses a close-coupled in-line arrangement with self-venting back pull-out construction. Its chemical-compatible seal options support fluid-specific selection, while the three-phase motor requires verified voltage, phase rotation, overload settings, and conductor sizing. Verified data does not include GPM, maximum head, amp draw, RPM, seal compound, operating temperature, dimensions, weight, or self-priming capability, so final configuration must follow the project submittal.

Key Features of Armstrong 4380 25 HP

• 25 HP motor supports municipal water transfer and large commercial HVAC distribution.
• Three-phase configuration suits high-capacity commercial electrical infrastructure and motor controls.
• 6 x 6 x 11.5 pump size identifies the specified in-line hydraulic arrangement.
• Maximum 11.5-inch impeller diameter supports high-capacity water movement requirements.
• Close-coupled construction connects motor and pump within one commercial assembly.
• Self-venting back pull-out design supports service access without removing connected piping.
• 175 PSI standard pressure rating supports compatible commercial water distribution systems.
• Seal materials are available for chemical compatibility and fluid-specific installation requirements.
• Flow, head, voltage, amperage, RPM, temperature, dimensions, weight, protection, and warranty require confirmation.

Why Choose Armstrong 4380 25 HP

This Armstrong vertical in-line pump combines high motor capacity, back pull-out service access, and configurable sealing for large water systems.

• Build: Close-coupled in-line construction and self-venting back pull-out design support large commercial mechanical-room installations.
• Value: Service access without removing connected piping can reduce labor, downtime, and disruption during planned maintenance.
• Audience: Municipal water contractors, commercial HVAC engineers, industrial pump installers, facility managers, and utility maintenance teams can specify this model.

Applications & Use Cases

Use the Armstrong 4380 25 HP for municipal water transfer, large commercial HVAC distribution, cooling-water circulation, and high-capacity building pumping. Physical dimensions, unit weight, and port reach were not supplied beyond the 6 x 6 x 11.5 pump designation, so verify flange spacing, valve clearance, motor service room, lifting access, and structural support 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 motor voltage, phase rotation, pressure rating, seal selection, suction conditions, and back pull-out clearance during commissioning.

Inspect seals, confirm piping support, flush debris, verify operating current, and review pressure conditions during scheduled pump maintenance. Purchase the Armstrong 4380 25 HP vertical in-line pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.