Maxon 100SMA11AA11BB22A0 1" Gas Safety Shut-Off Valve 115V Auto Reset NPT

The Maxon 100SMA11AA11BB22A0 is a normally closed electromechanical safety shut-off valve with automatic reset designed for natural gas service. This electrically actuated valve shuts off gas lines in less than one second, providing rapid response for critical safety applications in commercial and industrial burner systems.

Key Specifications:

• 1" (DN25) valve size with NPT threaded connection
• Valve flow coefficient (Cv): 20
• Maximum operating pressure differential: 125 PSIG
• 115V/60Hz motor and 120V/60Hz solenoid voltage
• 6 second motor timing for automatic reset operation
• NEMA 4 enclosure rating for weather-resistant protection

Construction & Features:

• Cast iron body with Buna O-rings and bumper seals
• 400 stainless steel seat with hardened ductile iron disc
• Includes VOS2 (two valve open switches) and VCS2 (two valve closed switches) for position indication and control integration
• Trim package 1-1 for general purpose applications
• Field rotatable top assemblies in 90° increments to fit specific application requirements
• Metal-to-metal seating for long-lasting reliability

This valve is designed for use in commercial and industrial burner applications where automatic safety shut-off is required. The unit is Factory Mutual, CSA, UL and CE approved, ensuring compliance with industry safety standards. The normally closed design means the valve requires electrical power to open and will automatically close when power is removed, providing fail-safe operation.