What is a fire valve?

What is a fire valve?

Fusible Fire Safety Valves are designed to reduce fire damage by shutting off the flow of oil from the oil tank in the event of a fire. Valves such as these are required by code in residential oil heating installations in conformance with NFPA 31.

How does a fire valve work?

This valve is installed in the fuel line that supplies your furnace. The capillary tube contains a liquid. If the temperature of your furnace goes above the level expected for that furnace the liquid in the capillary tube expands. This causes the valve to shut which in turn closes off the fuel supply to the furnace.

What is a fusible valve?

Fusible link valves are a type of valve that is used in shutoff applications as a safety measure. These valves are designed to be used in control systems that deal with flammable, combustible, or toxic materials. ... In case of a fire, the link breaks, releasing the tension on the spring and slamming the valve shut.

How do you reset a fire valve?

The reset button can be found at the base of the valve head and is pressed to reset the valve or if pulled will toggle the valve into the shut-off condition.

What is a fire safe valve?

Fire Safe Valve is a valve that can maintain its pressure containing ability during and after a certain period of fire exposing. ... This leakage of flammable fluid will feed the fire and make the fire getting bigger than before. Thus, we need a fire-safe valve that didn't leak when it is exposed to a fire.

What is a fusible plug used for?

Purpose. A fusible plug operates as a safety valve when dangerous temperatures, rather than dangerous pressures, are reached in a closed vessel. Fusible plugs are commonly installed in aircraft wheels, most typically in those of larger or high-performance aircraft.

How do you open a valve oil?

  1. To Open the OSV - let oil flow: turn the oil line valve counter-clockwise (left to right - in the direction of my finger to OPEN heating oil fuel flow. ...
  2. To Close the OSV - stop oil flow: rn the Firematic type OSV clockwise (right to left) to close the valve and stop oil flow.

What is an oil safety valve?

What are Fusible-Link Oil Safety Valves (OSVs) - definition. The OSV or oil safety valve controls flow of fuel oil to the oil burner of oil-fired heating boilers, furnaces, and water heaters. This inline oil valve is intended to close automatically and thus stop the flow of oil in the oil line in the event of a fire.

What is the function of an oil safety valve?

The oil safety valve is a dynamic pressure reducer; it requires pressure or vacuum to work. As a pressure reducer (PRV), it's invaluable in protecting pump seals under the high pressures needed to get oil up to burners located high overhead. Working with booster pumps, the PRV does a great job.