Description
The ASCO H118AN132F1F26V16 4‑inch 120 V Normally Closed Proof‑of‑Closure Gas Valve is a heavy‑duty safety shut‑off valve designed for industrial and commercial combustion systems. It combines a rugged cast‑iron valve body with a reliable hydramotor electrohydraulic actuator that produces controlled open/close operation of fuel gas supply. The proof‑of‑closure switch ensures electrical feedback to the control system that the valve has fully closed — a critical safety feature in burner management, boiler automation, and process heating applications.
Key Features
- Hydramotor electrohydraulic actuator with 120 V AC power
- Normally closed (N/C) safety shut‑off function
- Proof‑of‑closure switch for control feedback
- 4″ flanged connection for high‑capacity flow
- Cast iron body for durability and long service life
- Rapid closing action (under about 1 second) with controlled opening profile
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