At the moments of engine failures, catastrophic consequences might happen; but with ISOV air-intake shut-off valves, you can safeguard your diesel engines with confidence. Built to the highest standards, SESCO offers ISOV valves that provide reliable emergency engine overspeed shutdown protection across onshore and offshore drilling, marine, mining, and construction industries. These valves are designed and manufactured in-house, meeting strict international marine safety requirements.
✅ ISOV MANUAL VALVES: Simple yet reliable, these valves allow safe manual shutdown of the air intake line. Available in Sizes: 2″–8″ (50–203 mm).
✅ ISOV PNEUMATIC VALVES: Ideal for situations with limited battery power, these valves operate by applying air or oil pressure to the integrated pneumatic cylinder. Widely used on gensets, marine, and offshore applications, they offer a cost-effective alternative to solenoid versions. Available in Sizes: 2″–11″ (50–280 mm).
✅ ISOV ELECTRIC VALVES: Equipped with electric solenoid actuation, these valves safely shut off the air intake to prevent engine overspeed. Available in Sizes: 2″–8″ (50–203 mm).
✅ ISOV FAILSAFE VALVES: Mechanical failsafe design ensures the engine halts even during power loss, ideal for operations prone to electrical interruptions. Operates via engine oil pressure; when power is lost, the valve closes, stopping intake air and bringing the engine to a halt safely. Available in Sizes: 4″–8″.
Proven globally—from the Canadian Arctic to the Gulf of Mexico—they respond to a variety of fault or hazard conditions. Protect your engines, personnel, and equipment with SESCO ISOV valves.
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