Part 155-982 is a replacement displacement rod for compatible Admiral and Commander spray equipment. This precision rod transmits motion from the drive system to the pump piston, creating the pumping action that moves material. When the original rod becomes worn, bent, or damaged, replacement restores proper pump operation and prevents drive system wear.
| Part Number | 155-982 |
|---|---|
| Part Description | Displacement Rod |
| Brand | Universal |
| Fits | Admiral; Commander |
| Condition | New |
The 155-982 displacement rod is a direct replacement component for Admiral and Commander spray equipment. This precision-ground rod connects the drive system to the pump piston, translating the rotary or reciprocating motion of the drive into linear motion that moves the piston within the pump cylinder. This action creates the suction and pressure strokes that draw material in and push it out under high pressure. The displacement rod operates under significant stress and must maintain precise dimensions and a smooth surface finish to work effectively with packings and seals. A worn, bent, or damaged rod can cause loss of pumping efficiency, erratic pressure, seal leakage, and accelerated wear of drive components. This replacement rod is manufactured to exact specifications for length, diameter, surface finish, and end connections. It is made from durable materials to withstand the forces and wear of continuous operation. Installation requires access to the pump and drive area, and careful alignment to ensure proper operation. Regular inspection during pump service helps identify rod wear or damage before it leads to pump failure.
| Motion transmission | Transfers drive force to pump piston |
|---|---|
| Pumping action | Creates suction and pressure strokes |
| Seal interface | Provides smooth surface for packings |
| Worn / scored surface | Rod surface damaged, causing seal leaks |
|---|---|
| Bent rod | Rod deformation affects pump alignment |
| Corrosion damage | Rust or pitting compromises surface |
| Seal leakage | Fluid leaking past rod packings |
Displacement rod 155-982 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| Admiral |
| Commander |
When replacing the displacement rod, inspect these associated components to ensure proper pump function.
Check for wear or damage; replace if needed.
Always install new seals with rod.
Inspect for wear or looseness.
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