ASCO S261SH02N3LK4 Valve

Enhance your industrial gas system with the ASCO S261SH02N3LK4, a high-performance 3-inch solenoid valve engineered for safety and reliability. This normally closed gas shutoff valve is specifically designed for the on-off control of fuel gases in commercial and industrial burners. Featuring a die-cast aluminum body and a zero-differential pilot-operated diaphragm, it ensures tight shutoff for natural gas, LP, and other combustible gases. Operating at 120V AC, this ASCO 2-way valve manages a pressure range of 0 to 25 PSI with a massive 138 Cv flow capacity, supporting systems up to 7,430,000 BTU/hr. Integrated 1/8-inch NPT pipe taps allow for seamless routine testing, while the NBR seals provide superior resistance in temperatures ranging from -20°F to 170°F. Whether you are performing a gas burner safety shutoff or an HVAC system upgrade, the S261SH02N3LK4 delivers the rapid response time and robust industrial gas control required for mission-critical applications.

• High-Flow Efficiency: Massive 3-inch orifice provides a 138 Cv capacity for high-demand industrial burners.
• Superior Safety Standards: UL Listed, CSA Certified, and FM Approved for use as a primary safety shutoff valve.
• Quick Response Time: Features opening and closing times of less than one second for immediate fuel isolation.
• Versatile Media Compatibility: Suitable for natural gas, propane, and mixed gases in harsh ambient environments.
• Easy Maintenance: Equipped with upstream and downstream taps for pressure testing without disconnecting the line.

Common Questions

What mounting position is required for this 3-inch ASCO valve?
Due to its size and the K4 orifice configuration, the ASCO S261SH02N3LK4 must be mounted in the upright/vertical position to ensure proper pilot operation and prevent sluggish closing.

Can this valve be used for liquid service?
No, this specific model is a gas shutoff valve optimized for condensate-free combustible gases. Using it for liquids may damage the internal diaphragm or result in improper sealing.

Is a minimum pressure differential required for operation?
No, this is a zero-differential pilot-operated valve, meaning it can open and stay open even with very low or no pressure across the orifice.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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