Bell & Gossett Series LD3 Three-Piece Booster Pumps

Compact Three-Piece Booster Pump Performance for Hydronic and General Service Systems

Bell & Gossett Series LD3 three-piece booster pumps are designed for applications that require higher flow capacity and increased head pressure. Built for dependable operation, compact installation, and field serviceability, the LD3 is well suited for hydronic heating and cooling systems, domestic water applications, industrial use, and general service operation.

The three-piece pump configuration allows complete field repairability while maintaining a compact design. This makes maintenance easier and helps reduce downtime when service is required. Each Bell & Gossett booster pump is equipped with a Bell & Gossett manufactured motor, designed to provide quiet, efficient, and reliable operation.

Series LD3 booster pumps are available in iron or bronze body construction, allowing the pump to be selected based on system needs and fluid compatibility. Bronze construction is recommended when the pump is used in potable water applications.

Product Features

• In-line three-piece booster pump design
  
• Designed for systems requiring higher flow and head pressures
  
• Maximum capacities from 100 GPM to 150 GPM
  
• Available in iron or bronze body construction
  
• Three-piece configuration allows complete field repairability
  
• Compact construction for easier installation
  
• Bell & Gossett manufactured motor supports quiet and efficient operation
  
• Suitable for liquids compatible with iron or bronze pump construction
  
• Bronze body construction is recommended for potable water applications
  
• Motors with special electrical characteristics are available upon request

Operational Limits

• Maximum working pressure: 125 PSI
  
• Maximum operating temperature: 225°F
  
• Electrical ratings:
  
• 115/230V, 60 Hz, single phase
  
• 208-230/460V, 60 Hz, three phase
  
• 115V or 230V, 60 Hz, single phase for 1/4 HP models

Common Applications

• Hydronic heating systems
  
• Hydronic cooling systems
  
• Domestic water systems
  
• Industrial applications
  
• General service operations