Installation Butterfly Valve for Fire Hydrant
Large cities with dense settlements between buildings can trigger a variety of problems, one of which is fires. Fires in major cities can occur due to a variety of factors. Factors include burning public places, fire from stoves, flammable liquids, and small objects that are vulnerable to fire. Therefore, the presence of fire hydrants at strategic points is indispensable.
Installation of fire hydrants in a building is necessary to handle fires quickly and minimize the risk of damage due to spreading fire. There are various components required in the installation of fire hydrants in a building. These components are reservoir, hydrant pump, hydrant pillar, hydrant box and control panel. In addition, a valve is also required to regulate the rate of water in the pipe.
Valve is a tool used to regulate, direct, and control the flow of liquids. The way the valve works is to open and close the valve in the pipe that serves as a regulator of the amount of fluid flowing. In fire hydrant, the commonly used valve is butterfly valve.
At first, the butterfly valve was only installed on low-pressure pipes. With advances in technology, especially in the field of elastomers (elastic polymer), this type of valve can be applied to high-pressure pipes. Butterfly valve is very flexible to use because in addition to being watered for fire hydrant, but also can be watered by various other types of objects such as liquids, gases, even mud with various levels of pressure and temperature.
Each valve has its own opening system. Generally for valves measuring 14 inches using two types of manual operating systems, namely gear and lever. Valves with gear operation have a more complex system. In gear operation, worm gear installation is generally performed to facilitate the opening and closing of valves. This allows the valve to open and close perfectly in just a few rounds. Valve with gear operation is suitable for high pressure pipe. YUTA has various valves with gear operation including G-PN25DJE, G-250DJ, G-200DJ, and G-PN16XJME series.
In lever operation, valve opening and closing use quarter-turn system. In one round of 90o, the valve will be completely closed. One of the advantages of valves with lever operation is that it allows for partial opening and closing. This feature is especially useful for projects that require accurate measurement. However, lever operation requires more space and tends to be prone to damage making it unsuitable for application at high flow pressures. YUTA also has a variety of valves with lever operation among them is the PN16DJL series.