Description
The ASCO S261SH02N3GJ7 is a 1 1/4 inch normally closed (N/C) pilot operated gas shut off valve used in commercial and industrial combustion systems to safely control the flow of fuel gas. It operates on 120 V AC and is designed to provide reliable on/off control of gas in applications such as large burners, furnaces, boilers, and HVAC combustion trains. These valves use a zero differential piloted diaphragm design for positive shut off and quick response, and they include 1/8 inch NPT upstream and downstream test ports for safe routine maintenance and leak testing. The aluminum body construction is suitable for typical industrial environments.
Key Features
- Normally closed 2 way configuration — gas flow remains shut when the valve is not energized.
- Pilot operated diaphragm design for stable control and positive shut off.
- Operates on 120 V AC power for standard industrial control circuits.
- 1 1/4 inch NPT threaded inlet and outlet.
- 1/8 inch NPT upstream and downstream test ports with plugs to support leak and seat testing.
- Quick opening and closing times — less than about 1 second.
- Suitable for ambient temperatures up to approximately 175°F (80°C).
- Typical maximum operating pressure up to about 25 psi (1.7 bar).
- Substantial flow capacity suited to moderate sized combustion loads (~32 Cv).
