Monarch ACE-300-3SD End Suction Centrifugal Pump JM Frame & Repair Parts
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Monarch ACE-300-3SD End Suction Centrifugal Pump (3HP, 3-Phase)
The Monarch ACE-300-3SD is a robust, industrial-grade end suction centrifugal pump designed for heavy-duty commercial and agricultural applications. Powered by a 3 HP, 3-Phase motor, this pump operates on 208-230/460V, providing the high efficiency and consistent torque required for continuous duty cycles. Built on a standard JM Frame, the ACE-300-3SD combines ease of service with the superior durability of cast gray iron construction.
Key Features and Engineering
Engineered for versatility and longevity, the ACE-300-3SD is equipped with features that make it a top choice for professionals:
- Industrial Power: Features a 3600 RPM, three-phase motor (208-230/460V). Three-phase power ensures smoother operation, lower amp draw, and longer motor life compared to single-phase equivalents.
- Rugged Cast Iron Design: The pump casing and enclosed impeller are constructed from thick-wall cast gray iron, providing excellent vibration dampening and resistance to wear.
- JM Frame Compatibility: Utilizes an industry-standard JM motor frame. This square flange design with a threaded shaft ensures precise impeller alignment and simplifies motor replacement.
- High-Temp Mechanical Seal: Comes standard with a mechanical seal capable of withstanding temperatures up to 200°F, making it suitable for a variety of fluid transfer tasks.
- Motor Protection: A shaft flinger combined with a drain hole in the adapter bracket actively prevents moisture from pooling near the motor bearings.
Applications
The Monarch ACE-300-3SD is ideal for applications requiring higher voltage and industrial reliability:
- Commercial irrigation systems.
- Industrial water circulation and transfer.
- Factory pressure boosting.
- Large-scale liquid transfer.
- Sump and effluent management.
Technical Specifications
Performance Chart (Total Head in Feet)
| HP | Capacities in U.S. GPM | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 | 30 | 40 | 50 | 60 | 70 | 80 | 100 | 120 | 140 | 160 | |
| 3 | 145 | 140 | 132 | 124 | 116 | 110 | 104 | 82 | 62 | – | – |
| 5 | 172 | 172 | 170 | 165 | 162 | 160 | 156 | 135 | 110 | 82 | 15 |
Dimensions (Measured in inches)
| Model | Suct. NPT | Disch. NPT | CP | D | E | F | L | M | N | OP | X | Y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACE-300 | 2″ | 2″ | 17.25 | 4.99 | 5.75 | – | 8.79 | 4.12 | 5.69 | 10.37 | 6.31 | 3.25 |
| ACE-500 | 2″ | 2″ | 19.00 | 4.05 | 7.50 | 5.50 | 8.79 | 4.12 | 5.69 | 10.37 | 6.31 | 3.25 |
ACE Series Models & Electrical Data
| ACE SERIES – ELECTRIC MOTOR DRIVEN | ||||||
|---|---|---|---|---|---|---|
| Model No. | Order No. | HP | Suct. NPT | Disch. NPT | Electrical Characteristics | Ship Wt. (lbs.) |
| ACE-300SD | 614571 | 3 | 2″ | 2″ | 1/60/230V | 83 |
| ACE-300-3SD | 614567 | 3 | 2″ | 2″ | 3/60/208-230/460V | 83 |
| ACE-500SD | 614569 | 5 | 2″ | 2″ | 1/60/230V | 134 |
| ACE-500-3SD | 614570 | 5 | 2″ | 2″ | 3/60/208-230/460V | 129 |
| LESS POWER (KITS) | ||||||
|---|---|---|---|---|---|---|
| Model | Order No. | HP | Suct. NPT | Disch. NPT | Frame Size | Ship Wt. (lbs.) |
| ACE-300LP | 614995 | 3 | 2″ | 2″ | 145JM | 33 |
| ACE-500LP | 614996 | 5 | 2″ | 2″ | 182/184JM | 55 |
Repair Parts
Model Reference Key:
A: ACE-300SD
B: ACE-300B-5SD
C: ACE-300B-3SD (Use this column for ACE-300-3SD)
D: ACE-500SD
E: ACE-500-3SD
| Ref. # | Code # | A | B | C | D | E | Description |
|---|---|---|---|---|---|---|---|
| 2 | 218705 | 1 | Motor, 5HP Single Ph., 230V (Note: Model A is 3HP in spec sheet). | ||||
| 2 | 218707 | 1 | Motor, 5HP 3 Ph., 208-230/460V (Note: This row is marked for Column C in table, but ACE-300-3SD is a 3HP pump. Please verify nameplate. See Code 218702 below). | ||||
| 2 | 218700 | 1 | Motor, 3HP Single Ph., 115/230V | ||||
| 2 | 218702 | 1 | Motor, 3HP 3 Ph., 208-230/460V | ||||
| 2 | 218704 | 1 | Motor, 3HP 3 Ph., 575V | ||||
| 4 | 437841 | 1 | 1 | 1 | 1 | 1 | Adapter |
| 5** | 437839 | 1 | 1 | 1 | 1 | 1 | Casing |
| 6 | 433158 | 1 | 1 | Impeller | |||
| 6 | 433129 | 1 | 1 | Impeller | |||
| 7* | 240070 | 1 | 1 | 1 | 1 | 1 | Seal MS-7 |
| 8* | 240071 | 1 | 1 | 1 | 1 | 1 | Spring Holder |
| 9* | 198995 | 1 | 1 | 1 | 1 | 1 | ‘O’ Ring |
| 10* | 266008 | 1 | 1 | 1 | 1 | 1 | Sleeve |
| 11* | 432020 | 1 | 1 | Key | |||
| 11* | 432015 | 1 | 1 | Key | |||
| 12* | 190848 | 1 | 1 | Flinger | |||
| 13 | 185620 | 3 | 3 | 3 | 3 | 3 | 1/4″ NPT Pipe Plug Zinc Plated |
| 14 | 185910 | 1 | 1 | 1 | 1 | 1 | 1/8″ NPT Pipe Plug |
| 20 | 172971 | 4 | 4 | 4 | 4 | 4 | Stud 3/8″ x 1-1/4″ SST |
| 21 | 226210 | 4 | 4 | 4 | 4 | 4 | Bolt 3/8″ x 1″ ZNPL |
| 22 | 227830 | 4 | 4 | 4 | 4 | 4 | Nut Hex 3/8″ ZNPL |
| 23 | 176230 | 8 | 8 | 8 | 8 | 8 | Spring Washer 3/8″ ZNPL |
| 26 | 416720 | 1 | 1 | Collar | |||
| 26 | 416721 | 1 | 1 | Collar | |||
| 27 | 124191 | 1 | 1 | 1 | 1 | 1 | Bolt 3/8″ UNC x 3/4″ SST |
FAQs
What are the electrical requirements for the ACE-300-3SD?
This is a three-phase pump that operates on 208-230/460 Volts at 60Hz. It requires a compatible three-phase power supply and starter.
What is the suction and discharge size?
The Monarch ACE-300-3SD features a 2-inch NPT suction port and a 2-inch NPT discharge port.
Can this pump operate in freezing conditions?
While the pump itself should not be allowed to freeze containing water, the casing includes convenient ports for draining to prevent frost damage during winterization.
What type of motor frame does this use?
It uses an industry-standard JM Frame motor (Square Flange), which ensures easy replacement and precise alignment.