While not typically a popular general valve option, the poppet check valve is used in a wide variety of applications. This includes different types of engines, hydraulic systems, and even in more advanced types of applications where there are multiple flow paths or when it may be used in place of traditional pilot valves. They can also be essential in preventing backflow through a system and are a very durable and long-lasting valve option for these applications.
In general, a poppet check valve is used for the control of gas through a system, including in an engine. They are typically made of the types of materials that can withstand high pressure and high temperatures, so stainless steel is a critical option. For other types of applications, poppet valves, which may also be known as mushroom valves, can be made of other metals or even of a range of different plastics.
The Operating Basics
As with all valves that are designed to prevent backflow, the poppet check valve works based on changes in pressure on the inlet and outlet side of the valve. They can be designed to operate in the normally closed or the normally open position, depending on the system. With both, and when the pressure on the outlet side exceeds that of the inlet port they close, eliminating any backflow.
The typical design of the poppet valve is streamlined, meaning it is easy to integrate into any system or configuration. They can be plastic or metal, and they offer a range of different connection options for both materials and in all sizes of these valves.
As with all types of check valves, the poppet valve is rated for a specific maximum operating pressure and temperature. When selecting a valve, it is critical to stay within these parameters for optimal performance.
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