A.Y. McDonald · Submersible Well Pump
24000 Series K - 10 GPM
Stainless Steel 4 in submersible pump on a Baker motor, 1/2 to 5 HP, 17 builds.
160-994 ft at 10 GPM
1/2-5 HP
115V or 230V 1Ph · 230V 3Ph
1340 ft Max Head (Shut-off)
1 1/4 in NPT Discharge
Built-In Check Valve
Baker 4 in Stainless Steel Motor
Drinking Water ANSI/NSF 61
3 3/4 in Dia x 21.2-63 in L
28-93 lb Weight
What Ships and What It Needs to Run
Included: the pump end and Baker 4 in motor with leads, assembled as one complete pump, with the internal check valve and a grounded lead on the motor.
Two-wire builds: the controls are in the motor, so no control box is needed.
Three-wire single-phase builds: the control box is included.
Three-phase builds: the starter kit is included.
Drop cable and splice kit: sized to your setting depth and ordered separately.
Overview
The 24000 Series is Baker’s stainless steel 4 in submersible pump, built in six flow classes from 5 to 25 GPM and powered by Baker stainless steel motors. The discharge casting, check valve, bowls, shell, shaft, cable guard and NEMA motor bracket are stainless steel; the impellers are Noryl.
Each pump carries a code with its model, date of manufacture, motor HP and GPM, so a replacement can be matched in the field.
This listing is the K - 10 GPM class: 1/2 to 5 HP, 17 builds, two-wire up to 1 1/2 HP and three-wire up to 5 HP, all with a 1 1/4 in NPT discharge.
Genuine A.Y. McDonald equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier. Watermain Supply is an Authorized Stocking A.Y. McDonald and Baker Water Systems Distributor.
5-Year A.Y. McDonald Warranty in Potable Water
Covered for 5 years from the date of manufacture in potable water applications, and 3 years from the date of manufacture in other applications, under A.Y. McDonald’s published terms for Baker submersible motors and assembled submersible pumps (pump ends up to 25 GPM for the 5-year term, up to 80 GPM for the 3-year term).
Room to Grow
One pump per well. Need more head later? Step up in horsepower within the K - 10 GPM class. Need more flow? Move to a higher flow class of the 24000 Series, which runs to 25 GPM; every class uses the same 1 1/4 in NPT discharge, so the drop pipe connection stays the same.
Shared Specifications
| Included |
Pump end, motor and leads; control box on three-wire single-phase builds; starter kit on three-phase builds |
| Discharge |
1 1/4 in NPT (female) |
| Pump diameter |
3 3/4 in with cable guard |
| Well size |
4 in and larger |
| Check valve |
Built in |
| Motor |
Baker 4 in stainless steel submersible motor, NEMA 4 in flange, IP68, insulation class F |
| Motor temperature rating |
95°F |
| Cooling flow past the motor |
1.0 ft/sec at 95°F |
| Maximum starts |
20 per hour |
| Maximum operating depth (motor) |
984 ft |
| Voltage tolerance |
+6% / -10% |
| Certification |
Drinking Water ANSI/NSF 61 |
| Frequency |
60 Hz |
| App connection |
None; the pump runs from its own controls |
Motor data: Pumps by Baker catalog (Sept 2025, rev 3/26), pp. 121-128.
Models & Performance — Will It Do What You Need?
Find your horsepower in the row, then read across. Total head is the lift from the pumping water level to the discharge, plus the pressure you want at the tank (2.31 ft for every PSI), plus friction in the drop pipe.
Total head in feet
| HP |
0 GPM (Shut-off) |
5 GPM |
10 GPM |
15 GPM |
20 GPM (Max) |
| 1/2 HP |
220 ft |
202 ft |
160 ft |
96 ft |
10 ft |
| 3/4 HP |
316 ft |
293 ft |
234 ft |
140 ft |
11 ft |
| 1 HP |
379 ft |
345 ft |
272 ft |
158 ft |
5 ft |
| 1 1/2 HP |
543 ft |
503 ft |
399 ft |
234 ft |
7 ft |
| 2 HP |
639 ft |
591 ft |
470 ft |
275 ft |
8 ft |
| 3 HP |
862 ft |
798 ft |
639 ft |
365 ft |
23 ft |
| 5 HP |
1340 ft |
1240 ft |
994 ft |
567 ft |
35 ft |
Read from the published curve in the Pumps by Baker catalog (Sept 2025, rev 3/26), p. 72, digitized and rounded down, at the flows nearest 20%, 50% and 75% of the curve’s 20 GPM end. 0 GPM is the printed shut-off.
Output in GPM at 30 PSI (switch cut-in), by depth to water
| HP |
25 ft |
50 ft |
100 ft |
150 ft |
200 ft |
250 ft |
300 ft |
| 1/2 HP |
15.1 |
13.4 |
9.1 |
— |
— |
— |
— |
| 3/4 HP |
16.9 |
15.9 |
13.6 |
10.9 |
7.3 |
— |
— |
| 1 HP |
17.2 |
16.4 |
14.6 |
12.5 |
10.1 |
7.1 |
2.1 |
| 1 1/2 HP |
— |
17.7 |
16.6 |
15.4 |
14.1 |
12.6 |
11.1 |
| 2 HP |
— |
18.1 |
17.1 |
16.2 |
15.1 |
14.0 |
12.8 |
| 3 HP |
— |
18.6 |
17.9 |
17.2 |
16.4 |
15.7 |
14.9 |
| 5 HP |
— |
19.2 |
18.7 |
18.3 |
17.8 |
17.4 |
16.9 |
Output in GPM at 50 PSI (switch cut-out), by depth to water
| HP |
25 ft |
50 ft |
100 ft |
150 ft |
200 ft |
250 ft |
300 ft |
| 1/2 HP |
11.7 |
9.5 |
— |
— |
— |
— |
— |
| 3/4 HP |
14.9 |
13.8 |
11.1 |
7.6 |
— |
— |
— |
| 1 HP |
15.6 |
14.7 |
12.7 |
10.3 |
7.3 |
2.7 |
— |
| 1 1/2 HP |
— |
16.6 |
15.5 |
14.2 |
12.8 |
11.2 |
9.4 |
| 2 HP |
— |
17.2 |
16.2 |
15.2 |
14.1 |
12.9 |
11.6 |
| 3 HP |
— |
17.9 |
17.2 |
16.5 |
15.8 |
15.0 |
14.2 |
| 5 HP |
— |
18.8 |
18.3 |
17.9 |
17.4 |
16.9 |
16.5 |
Output tables as printed in the Pumps by Baker catalog (Sept 2025, rev 3/26), pp. 71-72, at the 30 and 50 PSI rows. Riser-pipe friction is not included (manufacturer note): add it for long or small drop pipe. — marks a point A.Y. McDonald does not print for that horsepower.
Best operating range: the published curve shades the most efficient operating range for each model; the catalog prints no figures for it. The curve is in the image gallery.
Before You Buy — The Limits That Decide the Fit
| Well size |
4 in casing and larger; the pump is 3 3/4 in diameter with the cable guard |
| Power |
Two-wire builds need no control box (the controls are in the motor); three-wire single-phase builds include their control box; three-phase builds include their starter kit. Match voltage and phase to your service; single-phase and three-phase builds are not interchangeable |
| Water temperature |
Motor rated to 95°F |
| Motor cooling |
1.0 ft/sec of water flow past the motor at 95°F |
| Starts |
Up to 20 starts per hour |
| Setting depth |
Motor rated to 984 ft operating depth |
| Riser friction |
Not included in the output tables; add it before choosing |
| Application |
Water wells; the manufacturer excludes use in swimming areas |
| Pairing |
One pump per well |
Materials of Construction
| Discharge head |
Stainless steel 304, 1 1/4 in NPT discharge |
| Motor adapter |
Stainless steel 304, NEMA standard |
| Check valve |
Stainless steel 304 |
| External shell |
Stainless steel 304, polished |
| Impellers |
Noryl |
| Diffusers |
Polycarbonate |
| Bearing |
Polyacetal |
| Shaft coupling |
Stainless steel 304, NEMA standard |
| Strainer |
Thermoplastic |
| Shaft |
Stainless steel 304 |
| Cable guard |
Stainless steel 304 |
Materials as printed by the manufacturer. Source: Pumps by Baker catalog (Sept 2025, rev 3/26), pp. 65-66.
