Viega 23525 Lockable Stem Extension 1-1/2 to 2 Inch

Product Description

The VIEGA 23525 is a lockable stem extension designed to increase the accessible stem length on valves where the installation depth or enclosure makes direct operator access difficult. This extension bridges a 1-1/2 to 2 inch range, allowing the valve stem to be reached and operated without removing wall coverings or access panels. The locking feature prevents unauthorized or accidental actuation, making it well-suited for commercial and institutional plumbing systems where valve security is a requirement. Licensed plumbers and pipefitters typically specify stem extensions during rough-in or retrofit work on concealed valve assemblies.

The VIEGA 23525 is used in applications where valves are set behind finished walls, in chases, or within equipment enclosures that limit direct access to the operator. It is appropriate for both new construction and retrofit plumbing installations in residential, commercial, and light industrial settings. The lockable design makes it a practical choice for multi-tenant buildings, mechanical rooms, and any installation where valve position control is necessary.

Key Features

• Lockable stem design prevents unauthorized or accidental valve actuation
• Covers a 1-1/2 to 2 inch extension range for flexible installation depth adjustment
• Suited for concealed valve assemblies behind finished walls or in chases
• Appropriate for new construction and retrofit plumbing applications

Compatibility

Designed as an OEM-style stem extension for use with compatible VIEGA valve assemblies requiring a 1-1/2 to 2 inch stem reach. Verify valve stem thread and operator interface specifications before installation.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable IPC and local plumbing codes. Shut off the water supply and relieve system pressure before servicing any valve or valve component. Confirm that the extension is fully engaged and the locking mechanism is functional before closing any access panel or restoring service. Do not force the extension onto a mismatched stem profile.

Technical Specifications

• Extension Range: 1-1/2 to 2 inches
• Locking: Yes
• UPC: 691514235257

Standard Information

• Brand: VIEGA
• Manufacturer Part Number: 23525