Armstrong 110108MF-677 Raypak 2 Boiler Header Pump

Description

Raypak boiler headers rely on Armstrong 110108MF-677 for commercial heating service when a compatible volute remains available. This 1/2 HP single-phase pump operates at 1750 RPM with 115 or 208 to 230 V options, a 4-1/2-inch Noryl impeller, and a Viton seal kit. Confirm the existing volute, flange fit, motor voltage, impeller clearance, and rotation before startup.

The Armstrong Gold Series Raypak 2 is supplied less volute and mounts to the existing casing through its flange connection. Its quiet sleeve or ball-bearing configuration supports replacement service, while the Noryl impeller provides the specified non-ferrous hydraulic component. Verified data does not include GPM, maximum head, amp draw, operating temperature, dimensions, weight, thermal protection, or self-priming capability, so confirm the full boiler-header assembly before installation.

Key Features of Armstrong 110108MF-677 Raypak 2

• 1/2 HP motor supports heavy-duty commercial boiler-header circulation and heating service.
• 115 or 208 to 230 V single-phase operation suits compatible boiler equipment.
• 1750 RPM operation supports the specified Raypak 2 replacement assembly.
• 4-1/2-inch Noryl impeller provides the listed non-ferrous hydraulic component.
• Viton seal kit supports compatible high-temperature boiler-water applications.
• Less-volute configuration mounts directly to a compatible existing Raypak or Laars casing.
• Quiet sleeve or ball-bearing design supports replacement pump operation.
• Flow, head, amperage, temperature, dimensions, weight, protection, and warranty require confirmation.

Why Choose Armstrong 110108MF-677 Raypak 2

This Armstrong boiler-header replacement pump renews the motor and hydraulic assembly without automatically replacing a compatible existing volute.

• Build: Noryl impeller, Viton sealing, and compatible bearing options support commercial boiler-header replacement work.
• Value: Reusing the existing volute can reduce piping changes, labor, equipment downtime, and replacement complexity.
• Audience: Boiler contractors, Raypak technicians, Laars service teams, commercial HVAC installers, and facility engineers can specify this assembly.

Applications & Use Cases

Use the Armstrong 110108MF-677 Raypak 2 for Raypak and Laars boiler headers, commercial heating systems, and compatible high-temperature circulation. Physical dimensions, unit weight, and port reach were not supplied, so verify volute compatibility, flange spacing, motor clearance, wiring access, lifting room, and impeller position 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 fit, motor voltage, purge trapped air, inspect the Viton seal, and verify rotation during commissioning.

Inspect the impeller, seal kit, bearings, and flange connection, then monitor operating temperature during scheduled boiler service. Purchase the Armstrong 110108MF-677 Raypak 2 boiler-header pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.