Saylor-Beall 703 Compressor Pumps

Saylor-Beall 703 Series Replacement Pump (1.5 – 2 HP)

The Saylor-Beall 703 is the definitive industrial solution for low-horsepower applications. Engineered to provide heavy-duty, two-stage performance for 1.5 HP to 2 HP motors, this pump bridges the gap between small commercial units and massive industrial compressors. Unlike lightweight aluminum competitors, the 703 features a robust cast-iron construction and is available in two distinct lubrication configurations to match your specific duty cycle and operating environment.

Available Lubrication Configurations

1. Standard Splash Lubrication (Model 703) Designed for standard industrial applications and level operating surfaces.

• Mechanism: Utilizes precision-engineered oil dippers attached to the connecting rods. As the crankshaft rotates, these dippers splash oil upward, creating a heavy mist that coats the cylinder walls, bearings, and wrist pins.
• Benefit: Simple, proven design with fewer moving parts. Ideal for automotive shops and general maintenance applications where the compressor runs intermittently.

2. Pressure Lubricated (Model 703-PL / L-Series) Designed for severe-duty cycles, continuous operation, or environments where the compressor cannot be perfectly leveled.

• Mechanism: Features a positive-displacement rotary oil pump mounted to the end of the crankshaft. This system forces oil through rifle-drilled passages directly to the crankshaft bearings and connecting rods under pressure.
• Benefit: Provides instant lubrication from the moment of start-up and ensures critical components are protected even under heavy load or continuous run times. (Includes an oil pressure gauge for visual monitoring).

Technical Specifications

• Motor Compatibility: 1.5 HP to 2 HP (Electric or Gas)
• Pump Design: Two-Stage, V-Twin, Cast Iron
• Displacement: 9.0 CFM @ 500 RPM
• Delivery: ~7.3 CFM @ 175 PSI
• Maximum Pressure: 175 PSI
• RPM Range: 400 – 510 RPM (Strict adherence required)
• Flywheel: 16.75″ OD with 1-groove “B” section belt
• Oil Capacity: 2 Pints

Common Features Across Both Versions:

• Centrifugal Unloader: Ensures loadless starting for motor protection.
• Intercooler: Finned copper tube cools air between stages to increase volumetric efficiency.
• Valve Material: Swedish steel discs for maximum durability.