A.Y. McDonald offers a full line of no-lead brass submersible pumps built for years of trouble free operation, with high efficiency impellers and diffusers. These submersibles offer peak capacity performance in 5, 7, 10, 15, 20, and 25 gallons per minute (GPM). Other features include no-lead discharge head with a built-in check valve, and stainless steel shaft and coupling.

All K Series No-Lead Pumps come with a 1-1/4” discharge and sizes range from 1/3 to 5 horsepower (HP). Two wire models up to 1-1/2 horsepower (HP) or three wire models up to 5 horsepower (HP).

A.Y. McDonald 21000 Series Bronze Submersible Well Pump Features

• Powered by NEMA Approved A.Y. McDonald Stainless Steel Motors with Built-In Lightning Protection
• Discharge Casting - No-Lead Brass Alloy
• Cable Guard - Stainless Steel Cable Guard Protects Motor Leads. Angled Top helps Keep Leads Stationary when Lowering and Raising Submersible Pump.
• Diffuser - Polycarbonate is Durable, Corrosion and Abrasion Resistant. Designed for Efficient Performance and Superior Sand Handling Capability.
• Impeller - Glass Bead Acetal, Smooth and Flexible, Material is Precision Engineered for Maximum Performance.
• Check Valve - Acetal Check Valve Poppet and Seal Housing, Buna-N O-ring, and Stainless Steel Washer Head Retention Screw. Threaded for Easy Installation or Removal. Working Pressure of 400 PSI.
• Discharge Bearing - Rubber Surrounding the Stainless Steel Shaft Provides Superior Wear Resistance against the Harshest Conditions while Maintaining Shaft Alignment. Self lubricating for Long Life.
• Polished Stainless Steel Shell - Heavy Duty and Threaded at Both Ends for Easy Field Service.
• Shaft - 7/16” 300 Series Stainless Steel, Hex Design for Positive Impeller Drive. Each Shaft Individually Measured for Straightness with Strict Tolerances.
• Stainless Steel Motor Coupling
• Motor Bracket - No-Lead Brass Alloy
• Intake Screen - Non-Corrosive
• A.Y. McDonald uses it’s Time Proven Captured Stack Design. The Captured Stack Design Incorporates Sand Notches into the Diffusers, which has Proven, Over Time, to Keep Sand Flowing Thru the Stack.
• Once Assembled, Each Pump is Individually Tested to Assure Performance within Design Specifications.
• Each Pump is Stamped with the Tester’s “Signature” Marking to Assure Quality Control.

A.Y. McDonald 21075K3LB Bronze Submersible Well Pump Specifications

Water Well Motor

• BODY CONSTRUCTION: 304 Stainless Steel
• HORSEPOWER: 0.75 HP
• CABLE LENGTH: 5-1/2 ft.
• VOLTAGE: 1ø, 230V
• RPM: 3450
• SERVICE FACTOR: 1.5
• DOWNWARD THRUST (lbs): 500 lbs
• MAX AMBIENT TEMPERATURE: 95°F/35°C
• FULL LOAD AMPS: 7.4
• FLANGE: NEMA 4"
• MAX OPERATING DEPTH: 984 ft
• LEAD: 3-wire
• CONTROL BOX REQUIRED

Water Well Pump End

• DISCHARGE SIZE: 1.25” FNPT
• NOMINAL FLOW RATING: 10 GPM
• HORSEPOWER: 0.75 HP
• MAXIMUM CAPACITY: 21.5 GPM
• MAXIMUM HEAD: 333’
• STAGES: 9
• IMPELLER DESIGN: Floating Stack
• IMPELLER MATERIAL: Glass Bead Acetal
• BODY MATERIAL: 300 Series Stainless Steel

A.Y. McDonald 21000 K Series Bronze Well Pump Curve

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

A.Y. McDonald 21000 Series Bronze Well Pump Product Resources

Download A.Y. McDonald 21000 Series Bronze Pump Brochure

Download A.Y. McDonald Submersible Pump Installation Instructions

Download A.Y. McDonald Pump Basics

Download A.Y. McDonald Pump Troubleshooting

Download A.Y. McDonald Submersible Motors IOM Manual