Berkeley S39521 Ac Straight Pump 1 Hp 208-230/460V 3ph

Product Description

The BERKELEY S39521 is a three-phase AC straight pump rated at 1 horsepower and designed for demanding fluid-transfer applications in commercial and industrial systems. It operates on 208 to 230/460 volts at 60 Hz and delivers up to 60 GPM at 20 feet of head, with a maximum head pressure of 113 psi. The cast iron housing provides durability in harsh service environments, while the Noryl impeller offers corrosion resistance for a range of fluid types. Connections are female pipe thread (FPT) on both the 1-1/4 inch inlet and 1 inch outlet. The open drip-proof (ODP) motor suits indoor or sheltered mechanical-room installations. Licensed plumbers and mechanical contractors are the typical installers.

This pump is suited for commercial hydronic circulation, water transfer, light industrial fluid handling, and irrigation systems where three-phase power is available. The 1-1/4 inch inlet and 1 inch outlet sizing make it a practical fit for mid-range piping configurations. With a maximum fluid temperature rating of 140 degrees F, it handles hot-water service and standard process fluid applications. Flow performance across multiple head conditions makes it adaptable to systems with varying static and dynamic pressure requirements.

Key Features

• 1 hp ODP motor rated for 208 to 230/460V three-phase, 60 Hz operation
• Cast iron housing for durability in commercial and industrial service
• Noryl impeller for corrosion resistance across a range of fluid types
• FPT x FPT end connections — 1-1/4 inch inlet, 1 inch outlet
• Maximum head pressure of 113 psi with flow rates from 22 GPM to 60 GPM depending on head
• Rated for fluid temperatures up to 140 degrees F

Compatibility

Designed as an OEM-style replacement or direct-install pump for commercial and industrial three-phase fluid-transfer systems requiring a 1 hp AC straight pump with FPT connections.

Installation Notes

Installation should be performed by a licensed plumber or mechanical contractor familiar with three-phase motor wiring and local plumbing codes. Shut off the fluid supply and de-energize and lock out the electrical circuit before beginning any installation or service work. Verify that the supply voltage and phase configuration match the motor nameplate before energizing. Support the pump and piping independently to avoid placing mechanical stress on the pump body connections.