Bell & Gossett 168023 Series 1535 – 352S – 1/2HP Pump

Three-phase industrial cooling and commercial HVAC service can consider the Bell & Gossett 168023 Series 1535 352S with 1/2 HP power, 115 or 208 to 230 V single-phase supply, cast-iron body, and optional bronze-fitted construction.

The enclosed balanced impeller and NEMA 56J frame provide defined mechanical references for replacement planning. The standard carbon, ceramic, and Buna-N seal supports the listed configuration, while actual flow, head, NPSH, pressure, temperature, and efficiency require the applicable performance data.

Technical Details

- The 1/2 HP motor establishes the listed power class for secondary-loop planning.
- 115 or 208 to 230 V supply requires confirmation of the available voltage.
- Single-phase operation supports compatible branch-circuit and control arrangements.
- Cast-iron body construction identifies the standard casing material.
- Optional bronze-fitted construction provides an alternate material configuration.
- The NEMA 56J frame supplies a specific motor-fitment reference.
- The enclosed balanced impeller identifies the rotating design for service review.

Hydraulic Performance and Application

Secondary hydronic loops and booster service are the listed applications for this Series 1535 configuration. Exact flow, head, NPSH, pressure, temperature, pump curve, and efficiency values are not supplied, so the 1/2 HP motor and balanced impeller cannot establish a confirmed operating point.

Installation Requirements

Confirm selected voltage, single-phase wiring, NEMA 56J frame fitment, piping connections, rotation, mounting orientation, seal compatibility, operating temperature, pressure, and service clearance before startup. The optional bronze-fitted arrangement should be matched to the approved fluid and application rather than assumed from the series name.

Warranty and Maintenance

Bell & Gossett provides an 18-Month Limited Warranty from shipment or a 1-Year Limited Warranty from installation, whichever occurs first, covering material and workmanship defects. Improper installation, misuse, alteration, negligence, and contrary operation are excluded. Seal condition and motor-frame compatibility remain relevant service checks. Mulmotor provides product-information support before purchase.