Bell & Gossett 168034 Series 1535 – 357S – 1-HP Pump

Description

Commercial heating zones use Bell & Gossett 168034 Series 1535-357S for secondary hydronic loops and commercial zone circulation. Its 1 HP single-phase motor accepts 115 or 208 to 230 V service, while the cast iron volute and internal mechanical seal support heating applications up to 225°F. Confirm the Series 1535 flange pattern, system curve, motor voltage, and flooded suction before startup.

The Series 1535-357S uses a cast iron volute with standard Series 1535 flanges and a single-phase motor configuration. Its internal mechanical seal contains the circulating fluid, while the 225°F maximum operating temperature supports compatible commercial heating systems. Verified data does not include GPM, maximum head, amp draw, RPM, impeller material, dimensions, weight, thermal protection, or self-priming capability, so final selection must follow the approved hydronic pump curve.

Key Features of Bell & Gossett 168034 Series 1535-357S

• 1 HP motor supports commercial heating zones and secondary hydronic loop circulation.
• 115 or 208 to 230 V single-phase operation suits compatible electrical systems.
• Cast iron volute provides a rigid housing for commercial heating installations.
• Internal mechanical seal helps contain circulating fluid during hydronic operation.
• 225°F maximum operating temperature supports compatible high-temperature heating loops.
• Standard Series 1535 flanges support compatible commercial replacement installations.
• Series 1535 configuration suits secondary hydronic circulation and commercial zone heating.
• Flow, head, amperage, RPM, impeller, dimensions, weight, protection, and warranty require confirmation.

Why Choose Bell & Gossett 168034 Series 1535-357S

This Bell & Gossett commercial heating circulator combines flexible single-phase voltage with cast iron construction and internal mechanical sealing.

• Build: Cast iron construction and internal mechanical sealing support compatible commercial hydronic service.
• Value: Flexible voltage selection can simplify replacement planning while proper curve matching limits poor circulation and overheating.
• Audience: Commercial HVAC contractors, boiler technicians, hydronic installers, facility engineers, and heating-zone maintenance teams can specify this model.

Applications & Use Cases

Use the Bell & Gossett 168034 Series 1535-357S for secondary hydronic loops, commercial heating zones, boiler circuits, and compatible HVAC circulation. Physical dimensions, unit weight, and connection reach were not supplied, so verify flange spacing, valve clearance, motor access, wiring position, and service room 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.
• Confirm voltage, purge trapped air, inspect the seal area, verify flange alignment, and check system temperature during commissioning.

Flush system debris, monitor the cast iron volute for leakage, and inspect the mechanical seal during scheduled maintenance. Purchase the Bell & Gossett 168034 Series 1535-357S commercial heating pump from Mulmotor.com for authentic equipment, applicable factory warranty protection, and pump support.