Description
Astralpool C71 deflector washer 1/2–1 HP 4405010163
The Astralpool C71 deflector washer 1/2–1 HP 4405010163 is an original protective washer designed for Astralpool pool pumps equipped with
C71 frame motors in the 0.5 to 1 horsepower range. Mounted on the motor shaft, it helps deflect splashed water away from the mechanical
seal and motor front, contributing to longer seal life and improved overall pump reliability.
Function of the Astralpool C71 deflector washer
The deflector washer sits between the motor front face and the hydraulic section, rotating with the shaft. Its profile is designed to
direct any droplets or condensation away from the mechanical seal zone and motor bearing area. By limiting the amount of moisture that
reaches these components, the Astralpool C71 deflector washer 4405010163 helps reduce corrosion risks and premature wear.
On pumps that operate many hours a day in humid technical rooms, this small part plays an important role in maintaining a dry, protected
interface between the motor and the pump body.
Compatibility and typical applications
This deflector washer is intended for compatible Astralpool circulation pumps that use C71 frame motors between 0.5 HP and 1 HP and list
reference 4405010163 in their exploded view or spare parts list. It is commonly used in residential pool filtration systems where the
pump circulates water through sand, glass or cartridge filters.
- Suitable for Astralpool pool pumps with C71 frame motors rated 0.5–1 HP.
- Original part as shown in official exploded diagrams specifying 4405010163.
- Ideal to replace missing, corroded or deformed deflector washers during pump overhaul.
Always check the pump identification label and parts documentation to confirm that this is the correct washer reference for your model.
When to replace the deflector washer 4405010163
Although it does not directly contact pool water under pressure, the deflector washer operates in a humid environment and rotates at
motor speed. Over time, corrosion, dirt or mechanical damage can reduce its effectiveness or create imbalance.
- Visible corrosion, deformation or cracks on the washer surface.
- Washer missing after previous work on the motor or mechanical seal.
- Signs of water marks or rust around the motor front bearing area.
- Vibration or noise possibly linked to a damaged or unbalanced washer.
Replacing the washer whenever you change the mechanical seal or motor front components is good practice to maintain optimal protection.
Installation recommendations
Installing the Astralpool C71 deflector washer 1/2–1 HP 4405010163 is done while the pump is already open for service, typically during
mechanical seal or motor replacement. The system must always be isolated electrically and hydraulically before starting work.
- Switch off the power supply, close valves and drain the pump housing.
- Separate the wet end from the motor and remove the impeller and mechanical seal.
- Remove the old deflector washer from the shaft, noting its orientation.
- Clean the shaft and motor front face to remove rust or deposits.
- Slide the new deflector washer into position according to the original direction.
- Install the new mechanical seal, refit the impeller and reassemble the pump.
Before restarting filtration, turn the shaft by hand to ensure the washer rotates freely without contact and observe the motor front area
during the first minutes of operation.
Good practice for long term protection
With the Astralpool C71 deflector washer 1/2–1 HP 4405010163 correctly installed, a few simple habits help protect the motor and seal
area over many seasons.
- Keep the technical room as dry and well ventilated as possible.
- Check periodically for any signs of moisture or rust around the motor front.
- Replace the washer whenever the mechanical seal or motor front bearing is serviced.
- Avoid water jets directly on the motor and flange when cleaning the plant room.
Using the original Astralpool C71 deflector washer 4405010163 ensures that compatible pumps maintain proper protection at the motor front,
supporting reliable, quiet filtration in everyday pool operation.
