Information Needed for Motor Compatibility
Replacement motors are only compatible with specific pump models and configurations. To identify the correct replacement motor, the following information is required:
- Total Horsepower (THP)
- Flange Type
- Frame Type
Step 1: Determine the Total Horsepower (THP)
The Total Horsepower (THP) is calculated by multiplying the motor horsepower (HP) by the Service Factor (SF). The Service Factor represents the additional load the motor can safely handle.
Customers can locate both the HP and SF ratings directly on the motor label.
Example Calculation
1.5 HP × 1.1 SF = 1.65 THP
The THP is one of the most important specifications when selecting a compatible replacement motor.
Step 2: Identify the Flange Type
We offer several replacement motor flange styles. The flange type must match the customer’s existing pump.
| Motor Type | Description & Compatibility | Example Image |
|---|---|---|
| C-Face Motor |
|
|
| Square Flange Standard Efficiency |
|
|
| Square Flange Premium Efficiency |
|
|
Step 3: Identify the Frame Type
The frame type can typically be found directly on the motor label. It is usually identified by the letters “FR” followed by the frame size.
For example:
48 Frame = “48FR” on the motor label
If the frame size is not visible on the label, customers can measure the motor diameter to help identify the frame type.
| Frame Type | Approximate Motor Diameter |
|---|---|
| 48 Frame | Approximately 5.5 inches in diameter |
| 56 Frame | Approximately 6.5 inches in diameter |
Unable to Locate the Information?
If the customer cannot locate the motor label or identify the required information, they may need to contact the original pump manufacturer for assistance.
Providing clear photos of:
- The motor label
- The full pump assembly
- The flange mounting area
can help identify the correct replacement motor more accurately.
Frequently Asked Questions
What information is required to identify a replacement motor?
Customers will need the Total Horsepower (THP), flange type, and
frame type from the existing motor.
How do I calculate Total Horsepower (THP)?
Multiply the motor horsepower (HP) by the Service Factor (SF).
Can I replace my motor with a different frame type?
No. The replacement motor must match the existing frame type and
flange configuration for proper fit and compatibility.
How do I know if I have a 48 Frame or 56 Frame motor?
The frame type is usually listed on the motor label. If not visible,
measure the motor diameter — 48 Frame motors are approximately 5.5
inches in diameter, while 56 Frame motors are approximately 6.5 inches
in diameter.
| SKU | Model # | HP | THP | Replacement Motor | Type |
|---|---|---|---|---|---|
| 9391 | W3SP2605X7 | 0.75 | 0.75 | 0.95 THP - SKU 8135 | C-Face |
| 9392 | W3SP2607X10 | 1.0 | 1.10 | 1.25 THP - SKU 8136 | C-Face |
| 9393 | W3SP2610X15 | 1.5 | 1.50 | 1.65 THP - SKU 8137 | C-Face |
| 9394 | W3SP2615X20 | 2.0 | 2.0 | 2.25 THP - SKU 8138 | C-Face |
| 9395 | W3SP2621X25 | 2.5 | 2.5 | 2.75 THP - SKU 8139 | C-Face |
| SKU | Model # | HP | THP | Replacement Motor | Type |
|---|---|---|---|---|---|
| 9023 | W3SP3010X15AZ | 1.5 | 1.5 | 1.65 THP - SKU 8137 | C-Face |
| 9024 | W3SP3015X20AZ | 2.0 | 2.0 | 2.25 THP - SKU 8138 | C-Face |
| SKU | Model # | HP | THP | Replacement Motor | Type |
|---|---|---|---|---|---|
| 7838 | 340037 | 0.75 | 0.95 | 0.95 THP - SKU 8124 | Square Flange Standard |
| 7674 | 340038 | 1.0 | 1.25 | 1.25 THP - SKU 8125 | Square Flange Standard |
| 7675 | 340039 | 1.5 | 1.65 | 1.65 THP - SKU 8126 | Square Flange Standard |