Bell & Gossett 168029 Series 1535 – 355S – 1-1/2HP Pump

Description

Primary HVAC circulation uses Bell & Gossett 168029 Series 1535-355S for high-flow commercial hydronic systems and building heating loops. Its 1-1/2 HP single-phase motor accepts 115 or 208 to 230 V, while the NEMA 56J frame, cast iron volute, internal mechanical seal, and renewable stainless steel sleeve support commercial service. Confirm flange compatibility, motor voltage, system fill, and operating curve before startup.

The Series 1535-355S uses a cast iron volute and NEMA 56J heavy-duty single-phase motor frame. Its renewable stainless steel sleeve helps protect the shaft interface, while the internal mechanical seal contains circulating fluid under approved conditions. Verified data does not include GPM, maximum head, amp draw, RPM, impeller material, operating temperature, dimensions, weight, thermal protection, or self-priming capability, so confirm complete pump documentation before installation.

Key Features of Bell & Gossett 168029 Series 1535-355S

• 1-1/2 HP motor supports high-flow commercial hydronics and primary HVAC circulation.
• 115 or 208 to 230 V single-phase operation suits compatible electrical systems.
• NEMA 56J motor frame supports the specified heavy-duty pump configuration.
• Cast iron volute provides a rigid housing for commercial heating loops.
• Internal mechanical seal helps contain circulating fluid during pump operation.
• Renewable stainless steel sleeve protects the shaft interface during service.
• Standard Series 1535 flanges support compatible commercial replacement installations.
• Flow, head, amperage, RPM, impeller, temperature, dimensions, weight, protection, and warranty require confirmation.

Why Choose Bell & Gossett 168029 Series 1535-355S

This Bell & Gossett commercial hydronic pump combines a NEMA 56J frame with serviceable shaft-sleeve protection.

• Build: Cast iron, stainless steel sleeve, internal sealing, and heavy-duty framing support commercial HVAC circulation.
• Value: A renewable shaft sleeve can simplify wear-component service and reduce replacement disruption.
• Audience: Commercial HVAC contractors, building engineers, boiler technicians, hydronic installers, and maintenance teams can specify this model.

Applications & Use Cases

Use the Bell & Gossett 168029 Series 1535-355S for primary HVAC circulation, commercial heating zones, high-flow hydronic loops, and building heating systems. Physical dimensions, unit weight, and connection reach were not supplied, so verify flange spacing, valve clearance, motor access, wiring position, lifting room, and service support before installation.

Warranty & Support

• Warranty: Bell & Gossett general product terms provide one year from installation or 18 months from product date code, whichever occurs first.
• Verify voltage, purge trapped air, inspect the stainless sleeve and seal, confirm flange alignment, and check motor operation during commissioning.

Flush system debris, monitor the cast iron volute for leakage, and inspect the sleeve and mechanical seal during scheduled service. Purchase the Bell & Gossett 168029 Series 1535-355S commercial hydronic pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.