Description
The ASCO H118AK142F1 is a 2.5″ normally closed (N/C) gas shutoff valve designed for demanding commercial and industrial HVAC and combustion applications. Operating on 120V, this valve remains closed in its de-energized state, providing a fail-safe shutoff of gas flow whenever power is interrupted — a critical safety feature for burner systems, boilers, and industrial heating equipment.
Key Features
- 2.5″ pipe connection for high-capacity gas flow applications
- 120V operating voltage for compatibility with standard commercial control circuits
- Normally Closed (N/C) operation — valve closes automatically upon loss of power for fail-safe performance
- Integrated auxiliary switch provides end-of-travel position feedback for control system integration and safety interlock wiring
- Part of ASCO’s trusted H118 series, engineered for reliable gas shutoff duty
- Suitable for use with natural gas and other compatible gas media
- Robust construction designed to meet the rigorous demands of commercial and industrial HVAC systems
Application
The H118AK142F1 is ideal for use in commercial boilers, burner management systems, industrial furnaces, and other gas-fired heating equipment where a reliable, electrically operated gas shutoff valve with position feedback is required. The built-in auxiliary switch enables seamless integration with building automation systems, flame safeguard controls, and safety interlock circuits.
Why Choose ASCO
ASCO has been a global leader in solenoid valve and fluid control technology for over a century. The H118 series reflects ASCO’s commitment to safety, reliability, and precision — making it a trusted choice for HVAC contractors, mechanical engineers, and facilities managers worldwide.







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