Leonard Valve MU-1-8B Port Sleeve Assembly

Product Description

The LEONARD VALVE MU-1-8B is a port sleeve assembly used in thermostatic mixing valve systems to direct and regulate internal flow paths. Port sleeves serve as precision internal components that seat within the valve body, controlling the mix ratio between hot and cold water supplies. This part is typically installed by licensed plumbers during valve rebuilds, preventive maintenance, or when restoring proper thermostatic function after wear or mineral buildup has compromised the original sleeve.

Port sleeve assemblies like the MU-1-8B are common service parts in commercial and institutional plumbing systems where Leonard Valve thermostatic mixing valves are installed. Typical applications include hospitals, schools, correctional facilities, and multi-unit residential buildings that rely on point-of-use or central thermostatic mixing for scald protection and consistent delivery temperature.

Key Features

• Internal port sleeve design seats precisely within the valve body for controlled flow mixing
• Subassembly format simplifies field replacement during valve service
• Designed for use in thermostatic mixing valve rebuilds and maintenance
• Supports restoration of accurate hot and cold water blending performance

Compatibility

Designed as an OEM-style replacement internal port sleeve assembly for Leonard Valve thermostatic mixing valve systems. Consult Leonard Valve documentation or cross-reference the MU-1-8B part number directly to confirm fitment for your specific valve model.

Installation Notes

Installation should be performed by a licensed plumber familiar with thermostatic mixing valve service procedures. Shut off both hot and cold water supplies and relieve system pressure before disassembling the valve body. Follow the manufacturer service manual for proper sleeve seating and reassembly sequence. Work must comply with applicable plumbing codes including IPC requirements for thermostatic mixing valve installations.

Technical Specifications

• Component Type: Port Sleeve Subassembly
• Application: Thermostatic Mixing Valve

Standard Information

• Brand: LEONARD VALVE
• Manufacturer Part Number: MU-1-8B