Bell & Gossett 179042LF 90-33S Pump 1/2 HP Motor

Description

Restore medium-flow hydronics with Bell & Gossett 179042LF 90-33S, a 1/2 HP Series 90 maintenance-free pump for commercial secondary loops. Its 1-1/2-inch flanged configuration fits compatible HVAC piping, while the 1750 RPM motor and 5-1/4-inch bronze impeller provide useful references when checking an existing installation. Verify the electrical supply, flange spacing, and system curve before removing the old circulator.

The single-phase motor accepts 115 or 208–230 V power and drives the bronze impeller within a maintenance-free Series 90 assembly. The 1-1/2-inch AA pump size identifies the flanged connection arrangement, but the supplied specifications do not state flow, head, pressure, amp draw, seal material, dimensions, or weight. Prime the loop, purge air, and confirm the pump direction before energizing.

Key Features & Benefits

• 1/2 HP Motor: Supports medium-flow circulation in compatible commercial hydronic systems.
• Single-Phase Operation: Fits 115 or 208–230 V service for flexible replacement planning.
• 1750 RPM Speed: Provides a clear motor-speed reference when matching the existing pump.
• 1-1/2-Inch AA Pump Size: Helps contractors verify flanged piping compatibility before installation.
• 5-1/4-Inch Bronze Impeller: Supplies a defined rotating component for replacement comparison.
• Maintenance-Free Series 90 Design: Reduces routine lubrication work in compatible hydronic service.

Why Choose Bell & Gossett 179042LF 90-33S

The 90-33S gives contractors a maintenance-free Series 90 circulator with single-phase voltage options, a 1-1/2-inch flanged connection, and defined impeller and motor-speed references.

• Build: Bronze impeller, flanged pump size, and maintenance-free construction provide useful replacement details; housing material was not supplied.
• Value: Maintenance-free operation can reduce routine lubrication tasks, while correct flange and curve matching helps avoid repeat labor.
• Audience: Suited to commercial HVAC contractors, boiler technicians, facility engineers, and hydronic replacement specialists.

Applications & Use Cases

Use Bell & Gossett 179042LF 90-33S for commercial secondary loops, medium-flow hydronics, boiler branches, and compatible 1-1/2-inch flanged HVAC piping. Overall dimensions, unit weight, port-to-port reach, flow, and head were not provided in the supplied data, so verify flange spacing, valve access, motor clearance, pipe support, and system-curve requirements before ordering.

Warranty & Support

• Warranty Terms Require Confirmation: Verify duration, coverage, registration, exclusions, and authorized service requirements with the seller.
• Match SKU 179042LF, Series 90, model 90-33S, voltage, and pump size against the existing nameplate.

Fill and purge the loop, inspect the inlet strainer, check flange gaskets, and watch the seal area for leakage during startup. Confirm the single-phase voltage, verify pump direction, and monitor vibration, sound, and temperature under operating load. Purchase the Bell & Gossett 179042LF 90-33S Series 90 hydronic circulating pump through Mulmotor.com for authentic equipment, applicable warranty support, and pump assistance.