Remotely Operated Quick Closing Valves
(a) Purpose:
The primary purpose of remotely operated quick closing valves is to isolate and stop the flow of fluids rapidly in an emergency situation. This is particularly important for flammable or hazardous liquids to:
- Prevent fire spread: By shutting the valve, the flow of fuel to a fire can be stopped, potentially containing the situation.
- Minimize damage: In case of a leak or ruptured tank, the valve can isolate the issue, preventing further release of the liquid.
(b) Where They Are Fitted:
These valves are strategically placed on the outlet lines of tanks containing hazardous materials, typically:
- Fuel oil tanks in engine rooms or boiler rooms.
- Tanks supplying fuel to emergency generators.
- Tanks with flammable or hazardous liquids in industrial settings.
(c) Testing Procedures:
Regular testing ensures these valves function properly in critical situations. Testing procedures may involve:
- Operational Check: Manually operating the valve through its full open-close cycle to confirm smooth movement and proper closure.
- Remote Activation Test: Simulating an emergency scenario by activating the remote closing mechanism and verifying the valve shuts down promptly.
- Leakage Test: Pressurizing the system to identify any leaks around the valve seat or body, ensuring a tight seal when closed.
- Inspection: Visually inspecting the valve for any signs of wear, damage, or corrosion that might affect its performance.
The specific testing frequency and procedures may vary depending on regulations, industry standards, and the specific application.