VALVES FOR FIREFIGHTING
The key components of a firefighting system begin with high-quality valves like Isolation Gate valves, Check valves Alarm check valves, Zone control valves, Pre-action valves, Pressure reducing valves, etc. Untold damages to a property can be done by a sudden fire event, but sometimes efforts to put out the fire can be very catastrophic. The base of a fire protection system is made by high-quality, high-performance firefighting valves which deliver water safely and efficiently when you require it the most. So let's take a look at the importance of firefighting valves.
The contamination and flooding from water sources that are used in the fire protection system are prevented by pressure-activated check valves. It is a device that allows the flow of liquids, semisolids, or gases only in one direction. Check valves that are featured in systems that range from pharmaceutical production to plumbing often rely on changes in pressure for managing flows.
How does it work?
A combination of gravity tanks, fire department connection, and municipal water supplies are used by most of the fire sprinkler systems for providing water to sprinkler heads. But municipal water sources while providing an extra layer of reliability to fire protection systems, can also be problematic, like for instance drinking water can get contaminated by water from a fire hydrant or dirty water from fire sprinkler pipe may flow through nearby streets into nearby drains. This wanted reverse flow of water is prevented by check valves. Many check valves come with a hinged clapper with a spring that keeps the valve closed until the water flowing from some water source opens it. These clappers only open in a single direction.
Low-cost and lightweight control over water flow in fire sprinkler and standpipe systems are provided by butterfly valves. They isolate or regulate the flow of fluid through piping systems. They can be used with gases, liquids, and even semi-solids, fire protection butterfly valves serve as control valves that shut down or turn on the water flow to the pipes serving fire sprinkler or standpipe systems.
How do they work?
The flow of water is stopped via a butterfly valve by rotating an internal disc. When the disc is turned parallel to the flow, water can pass through freely. The movement of water into piping stops when the disc is rotated 90 degrees. Without significantly slowing the movement of water through the valve, this disc can stay in the water's path at all times. Butterfly valves work just like a control valve capable of shutting off the flow of water to whole sections of fire sprinkler or standpipe systems.
Gate Valves are bi-directional isolating valves that open up by lifting a rectangular or round gate out of the path of water flow. When completely open, gate valves have no obstruction in the flow path which results in very low friction loss. Either a rising stem or a non rising stem is connected by the actuator of the gate valve for forming different types. Gate valves are designed to be the control valves in many of fire protection systems
How does it work?
Gate valves need to be used only in fully opened or fully closed positions. They are operated manually by multi-turn valves and are operated by a hand wheel in a counter-clockwise direction and is closed in a clockwise direction. Through a full cycle, each valve should be operated and returned to its normal position.
Built on years of experience, our supplied firefighting valves are incredibly versatile, offering you more ways to take control of a fire on the ground. Whether your needs are for apparatus brass valves, specifically designed for the fire service industry, or a standard wye or Siamese valve, Dutco Tennant LLC can meet all your requirements. We are the regional partners of AVK Valves and with us you can be assured to get the most advanced range of products every time.