Xylem 317353 TC-L Lower Valve for Test-N-Check Boiler Control System

The Xylem 317353 is a McDonnell & Miller TC-L lower valve designed as a replacement component for TC-4 Test-N-Check valve systems. This essential replacement part ensures proper function of your boiler control testing equipment, allowing for continued code-compliant low water cut-off testing.

Key Features:

• Compatible with TC-4 Test-N-Check systems featuring 1-inch FIP connections for mounting at crosses in equalizing lines
• Genuine Xylem McDonnell & Miller OEM replacement part
• Designed for hot water boiler applications with maximum pressure rating of 160 PSI
• Maximum operating temperature of 250°F (121°C)
• Durable brass construction for long-lasting performance

The TC-4 Test-N-Check system simplifies ASME CSD-1 code-mandated testing of low water cut-offs by eliminating the need to drain the entire system. This lower valve component works in conjunction with the upper valve to restrict water flow during testing procedures, ensuring accurate and efficient boiler safety testing in commercial and industrial applications.