Monarch ACE-500-3SD End Suction Centrifugal Pump JM Frame & Repair Parts
Monarch ACE-500-3SD End Suction Centrifugal Pump JM Frame
Monarch ACE-500-3SD End Suction Centrifugal Pump JM Frame is a high-performance, heavy-duty end suction centrifugal pump designed for demanding industrial and irrigation applications. Part of the renowned ACE-300 and 500 Series, this 5 HP pump is engineered for reliability, featuring rugged cast gray iron construction and a robust industry-standard JM motor frame. Whether you are managing large-scale lawn sprinklers, sump systems, or industrial water transfer, the Monarch ACE-500-3SD delivers consistent power and flow throughout continuous operation.
Key Features and Engineering
The ACE-500-3SD is built to withstand harsh operating conditions while providing easy maintenance features. Below are the core specifications that define this JM Frame pump:
Heavy-Duty Construction
- Cast Gray Iron Body: Both the casing and the enclosed impeller are constructed from thick-wall cast gray iron, offering superior durability and vibration dampening compared to stamped metal or plastic alternatives.
- Mechanical Seal: Equipped with a high-temperature mechanical seal capable of handling fluids up to 200°F, ensuring leak-free operation even in demanding thermal environments.
- Shaft Flinger: A specialized shaft flinger is combined with a large drain hole in the adapter bracket. This design actively prevents moisture from reaching and damaging the motor bearings.
Motor and Performance
- JM Frame Motor: Powered by a 3600 RPM, three-phase industry-standard JM motor. This square flange design ensures a rigid connection and precise alignment.
- Port Design: The casing features dedicated ports for air bleeding during the priming process and drainage ports to prevent frost damage during freezing conditions.
- Performance: Capable of high-capacity water movement, making it ideal for pressure boosting and liquid transfer.
Applications
The Monarch ACE Series is versatile and suitable for a wide range of professional sectors:
- Commercial Irrigation and Lawn Sprinkler Systems.
- Industrial Water Circulation and Transfer.
- Sump and Sewage Management (Effluent).
- General Purpose Pressure Boosting.
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 & Kits
| 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
Keep your pump running efficiently with genuine replacement parts. Use the table below to identify the correct part number for your specific model configuration.
Model Reference Key:
A: ACE-300SD
B: ACE-300B-5SD
C: ACE-300B-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: Description in image says 5HP for Col A/Ref 2, though Model A is 3HP in spec sheet. Please verify motor plate). | ||||
| 2 | 218707 | 1 | Motor, 5HP 3 Ph., 208-230/460V | ||||
| 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 is the voltage requirement for the ACE-500-3SD?
What material is the ACE-500-3SD impeller made of?
Can this pump handle hot water?
Does the pump housing need to be primed?
Send us your model number and we will confirm fit, price, and availability.