Reliable Emergency Flow Control for Safety-Critical Systems
Our Emergency Shut-Off Swing Check Valves (ESOV) are designed to provide rapid and dependable flow isolation in hazardous events such as fire or excessive heat. Equipped with fire-sensitive fusible links and external spring load mechanisms, these ANSI flanged valves (sizes 2"–16") automatically shut off the flow of gas, liquid, or vapor to prevent escalation during emergencies.

Key Benefits:

• Fire-Safe Fusible Link: Melts upon exposure to heat, triggering automatic valve closure for enhanced safety.

• Local and Remote Actuation: Flexible operation options to suit diverse installation scenarios.

• Versatile Installation: Suitable for both horizontal and vertical mounting.

• Manual Reset: Prevents accidental reactivation, ensuring controlled restart.

• Robust Testing: Factory-tested to API 598 standards for guaranteed reliability.

• Enhanced Seal with Back Pressure: Improves leak prevention as pressure increases.

• Cost-Effective Safety: Meets critical safety requirements without excess cost.

Specifications:

• Sizes: 2″ to 16″ (ANSI 150# and 300# flanged)

• Operating Temperature: -20°F to 475°F

• Materials: Carbon Steel or Stainless Steel body, disc, and hanger arm; API 598 Trim 8 or 12 seat; graphite cover seal

• Fusible Link Temperatures: 135°F, 165°F (standard), 212°F, 280°F, 360°F

Addressing Industry Pain Points
In fire or high-temperature emergencies, rapid flow isolation is crucial to protect personnel, equipment, and facilities. Our ESOV valves minimize downtime and risk by automatically shutting off hazardous flows, offering peace of mind and compliance with safety regulations in chemical, petrochemical, and industrial plants.