Fusible Head Fire Valves

Description

Fusible Head Fire Valves are a safety device used in fuel systems, particularly those involving oil or other flammable liquids. It’s primary purpose is to automatically shut off the flow of fuel in the event of a fire. Here’s how it works and what it entails:

Key Components and Functionality:

1. Fusible Link:
   • The key component of a fusible head fire valve is the fusible link or element. This is a piece of metal designed to melt at a specific temperature, usually around 165°F (74°C) to 212°F (100°C), depending on the design and application.
2. Valve Mechanism:
   • The valve is held open by the fusible link. When the ambient temperature around the valve exceeds the melting point of the fusible link (typically due to a fire), the link melts and the valve automatically closes, cutting off the fuel supply.

Applications:

• Oil Heating Systems: Commonly used in oil-fired boilers and heaters to prevent fuel from feeding a fire in case of a malfunction or external fire.
• Industrial Fuel Systems: Used in various industrial settings where flammable liquids are stored or used.
• Fuel Storage Tanks: Installed in the fuel lines of storage tanks to prevent the spread of fire.

Benefits:

• Safety: Provides an automatic and fail-safe mechanism to stop fuel flow in the event of a fire, reducing the risk of fire spreading.
• Reliability: Simple mechanical design ensures reliability and minimal maintenance requirements.
• Compliance: Often required by building codes and insurance regulations for facilities using flammable liquids.

Example Scenario:

In a residential heating system, a fusible head fire valve would be installed in the oil supply line. If a fire were to break out in the boiler room, the heat would cause the fusible link to melt, thereby closing the valve and stopping the flow of oil, which could otherwise fuel the fire further.

Maintenance:

Regular inspection and testing are important to ensure that the fusible link is intact and the valve is functioning correctly. Replacement of the fusible link is necessary if it shows signs of wear or damage.

In summary, a fusible head fire valve is a crucial safety device in fuel systems that automatically stops fuel flow in case of a fire, thereby preventing the spread of the fire and potential catastrophic damage.

‘Handwheel Fire Valve’ is another name for this fusible head valve.

Important: This valve should only be used where permitted according to current Building regulations.

**FREE: This 3/8″ BSP Female threaded inlet/outlet valve comes complete with 10mm copper compression fittings**

This is a top-quality all-brass construction Fire Valve, which will isolate the downstream supply of oil should the handwheel be turned to the off position or should the heat from a fire melt the eutectic soldered link on the handwheel.

Additional information

Specification Sheet – DOWNLOAD HERE ▼