Weil McLain 383-600-099 ASME Pressure Relief Valve 40 PSI 1-1/4" x 1-1/2"

The Weil McLain 383-600-099 is an ASME-rated pressure relief valve designed for commercial and residential boiler systems. This safety component automatically releases excess pressure to protect your heating system from overpressure conditions and maintain safe operating parameters.

Key Features:

• 40 PSI pressure relief rating for optimal system protection
• 1-1/4" NPT female inlet connection
• 1-1/2" side outlet discharge connection
• ASME certified construction for code compliance
• Brass body construction for durability and corrosion resistance
• Factory calibrated and tested for reliable performance

This pressure relief valve is an essential safety device for Weil-McLain boiler installations. It automatically opens when system pressure exceeds 40 PSI, discharging water through the side outlet to prevent dangerous pressure buildup. The valve resets automatically once pressure returns to safe levels. Proper installation with appropriate discharge piping is required per local codes and manufacturer specifications.