Tapco 355059 Seat Extension

Product Description

The TAPCO 355059 is a seat extension designed to provide added reach or clearance in valve or fitting seat assemblies. Seat extensions are used to reposition or lengthen the seating surface within a valve body or inline fitting, allowing proper engagement where standard-length components would not reach. This part is typically installed by licensed plumbers or pipefitters working on valve repair or replacement tasks in residential and commercial piping systems.

The 355059 is suited for applications where the valve seat must be extended to meet system geometry requirements. This includes repair scenarios in plumbing distribution lines, shutoff valve service, and inline fitting assemblies where seat depth or reach falls outside the range of a standard replacement component.

Key Features

• Extends seating surface to accommodate non-standard valve body depths
• Designed as a direct-fit component for seat assembly service work
• Compact form factor suited for tight inline valve installations
• Supports accurate seating engagement for reliable shutoff performance

Compatibility

Designed as an OEM-style replacement seat extension for use in valve and fitting assemblies where extended seat reach is required.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter. Shut off the water supply and depressurize the line before disassembling any valve or fitting. Ensure the seat extension is fully seated and properly torqued per the valve manufacturer's service instructions before returning the system to service. Inspect the surrounding valve body for wear or damage prior to installation.

Technical Specifications

• Component Type: Seat Extension

Standard Information

• Brand: TAPCO
• Manufacturer Part Number: 355059