A high pressure valve is something that can operate in an environment where pressure is over 500 PSI. These valves come along with a unique design, which allows them to function under maximum working pressure at all times. At the time of using a high pressure valve, it is also important to have a solid understanding about the functionality of it. This understanding can assist someone to get the most out of a high pressure valve during an application.
High-pressure valves are utilized in a wide range of sectors, from worldwide oil production (of which the United States produces about 13 percent) to aerospace manufacturing. They’re present in almost every hydraulic system, and their job is to maintain system pressures below a safe upper limit. There are five distinct types of high pressure valves in general; let’s have a look at each one.
Fluid power systems have a pressure range that they work within. This range is determined by the forces that the system must create in order to complete the task; if these forces are not regulated or limited, they might harm the (sometimes expensive) equipment and fluid power components. Relief valves serve as safety valves, limiting maximum pressure by diverting surplus oil when pressures rise too high.
When it comes to maintaining secondary, lower pressure in a hydraulic system, reducing valves are the most practical components. When exposed to adequate downstream pressure, they’re the only high-pressure valve on our list that stays open and closes. Direct acting and pilot operated are the two types.
Because certain circuits include many actuators such as cylinders, it’s required to drive them in a precise order or sequence. This is accomplished by the employment of limit switches, timers, and other electrical control devices. These high-pressure valves are often employed to establish pressure in a circuit to counterbalance a weight or external force. The primary port of the valve is linked to the rod end of the cylinder, and the pressure setting is slightly greater than what is needed to keep the weight from free-falling.
Unloading valves are used to unload pumps, as one might expect. Once system pressure is attained, they route pump output flow (which is generally the output of one pump in a multi-pump system) straight to a reservoir at low pressure. The valve spool moves and diverts pump output to the reservoir when an external pilot signal operating on the other end of the valve spool provides a force greater than that exerted by the spring.
It is possible to find high pressure valves being used in numerous industrial applications. It is essential to understand the functionality of different types of high pressure valves and see how they match with intended requirement. Based on that, it is possible to spend money on purchasing the best type of high pressure valve that is available for a specific application. This will cater to the purpose in the way it should.
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