Forklift Steering Valve - A valve is a device that controls the flow of a fluid like for example liquids, slurries, fluidized gases or regular gases, by opening, closing or partially obstructing certain passageways. Valves are generally pipe fittings but are usually discussed as a separate category. In instances where an open valve is concerned, fluid flows in a direction from higher to lower pressure.
Valves are utilized in various applications like for example residential, transport, commercial, military and industrial industries. Some of the main trades which rely on valves consist of the mining, chemical manufacturing, power generation, water reticulation, sewerage and oil and gas sector.
Most valves being utilized in daily activities are plumbing valves, which are utilized in taps for tap water. Several common valves consist of types fitted to dishwashers and washing machines, gas control valves on cookers, valves within car engines and safety devices fitted to hot water systems. In nature, veins within the human body act as valves and regulate the blood flow. Heart valves also regulate the circulation of blood in the chambers of the heart and maintain the proper pumping action.
Valves could be utilized and operated in various ways that they can be operated by a handle, a pedal or a lever. Also, valves can be operated automatically or by changes in temperature, pressure or flow. These changes may act upon a piston or a diaphragm which in turn activates the valve. Some common examples of this particular kind of valve are seen on safety valves or boilers fitted to hot water systems.
Valves are used in numerous complex control systems that can require an automatic control which is based on external input. Regulating the flow through the pipe to a changing set point is one example. These circumstances usually need an actuator. An actuator will stroke the valve depending on its set-up and input, allowing the valve to be situated accurately while allowing control over several needs.
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