Pentair | 400031Z | Almond Seal Plate with Mechanical Seal | Replacement Pool Pump Seal Plate Assembly

This almond seal plate with mechanical seal is a replacement pump component designed for compatible Pentair pool and spa pump assemblies. It forms part of the pump’s wet-end sealing system and helps separate the motor from the water-handling portion of the pump while supporting the mechanical shaft seal installation.

Built for pump repair and rebuild applications, this replacement assembly is used when the existing seal plate is cracked, warped, leaking, damaged, or being serviced during mechanical seal replacement.

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Key Features

• Replacement seal plate assembly for compatible Pentair pool and spa pumps

• Includes mechanical seal for wet-end pump service and repair applications

• Almond finish matches select compatible pump housing assemblies

• Helps support proper separation between the pump motor and wet-end components

• Used during pump rebuilds, leak repairs, motor replacement, and seal service

• Replacement component for cracked, warped, damaged, or leaking seal plates

• Supports proper mechanical shaft sealing when installed with compatible pump components

• Professional installation is recommended to ensure correct seal orientation, housing alignment, and leak-free operation

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Product Overview

This seal plate is used within a compatible pool pump assembly as part of the wet-end and motor interface. It provides the mounting and sealing area where the mechanical shaft seal is installed, helping prevent water from traveling along the motor shaft toward the pump motor.

The component is commonly replaced during pump repairs when water leaks are found near the seal plate, motor flange, or shaft seal area. It may also be replaced during motor swaps, full wet-end rebuilds, or service work where the original plate is cracked, distorted, or no longer able to support a reliable seal.

During installation, the pump housing, impeller, diffuser, motor shaft, seal surfaces, gaskets, and hardware should be inspected for wear or damage. The mechanical seal should be handled carefully to avoid contaminating or damaging the sealing faces, and all mating surfaces should be aligned correctly before the pump is reassembled.

After installation, the pump should be primed and checked for leaks during operation. Routine maintenance should include monitoring for seal drips, unusual pump noise, air leaks, overheating, or signs of water near the motor. Maintaining the seal plate and mechanical seal in good condition helps protect the pump motor and supports reliable circulation system performance.