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Order by 2PM MST
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Franklin FMIH-40 bottom check-valve weight, part number 305454025, is the bottom check-valve weight for the Franklin FMIH-40 hydraulic-driven water pump. It is the lower weight component, not the top weight, flapper valve, or complete check-valve assembly.
The bottom weight has its own replacement number and should be selected by both part number and position. Keeping the lower weight distinct from the upper weight helps make the repair order specific to the component that needs replacement.
| Feature | Benefit |
|---|---|
| Bottom-position weight | Replaces the lower weight in the FMIH-40 check-valve arrangement. |
| Individual service part | Keeps lower-weight replacement separate from the top weight and flapper valve. |
| Specification | Detail |
|---|---|
| Manufacturer part number | 305454025 |
| Pump model | Franklin FMIH-40 |
| Component | Bottom Check-Valve Weight |
| Service reference | 73B |
| Material | Cast iron, ASTM A48 Class 30 |
| Component | Selection |
|---|---|
| Top check-valve weight | 305454023 — a different component for the top position. |
| Flapper valve | 305454045 — the separate neoprene valve component. |
| Check | What to confirm |
|---|---|
| Pump identification | Confirm FMIH-40 and bottom weight 305454025. |
| Weight position | Verify that the bottom weight is needed, rather than the top weight. |
| Assembly condition | Inspect the flapper and fastening hardware to determine whether other parts are required; this is not a complete valve assembly. |
Follow the pump and equipment service instructions. Isolate the drive and relieve stored pressure before disassembly.
Need help selecting the correct bottom check-valve weight? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your pump model, existing part number, or photos.
| Model Number | FMIH-40 |
|---|---|
| Material | Cast Iron |
| Weight | 0.7 lb |