Venttiilipesissä

Venttiilipesissä, often translated as valve seats, are essential components within many types of valves. They provide a precise sealing surface against which a valve closure element, such as a plug or disc, presses to stop or regulate the flow of a fluid. The design and material of the valve seat are critical for ensuring leak-tight shutoff and for withstanding the operating conditions of the valve, including pressure, temperature, and the nature of the fluid being handled.

Valve seats can be integral to the valve body or a separate insert. For applications requiring high durability or resistance to specific media, replaceable valve seats are often employed. Common materials for valve seats include various metals like brass, stainless steel, and hardened alloys, as well as non-metallic options such as PTFE, rubber, and ceramics. The choice of material depends on factors like corrosion resistance, wear resistance, and sealing performance requirements. The accuracy of the mating surfaces between the valve closure element and the valve seat determines the effectiveness of the seal. Wear or damage to the valve seat is a common cause of valve leakage.