In today's challenging economic climate, companies are constantly looking for ways to reduce costs within their operations. Recognising this need, Kemet International has been providing innovative solutions for the overhaul and repair of mechanical seals in pumps and valves.
Mechanical seals come in a variety of designs and materials, and when they fail, there are two main options: replacement or refurbishment. Wear-related failures, which can cause leakage or even catastrophic failure, can be effectively addressed with the help of Kemet's equipment and expertise. The company provides on-site refurbishment options and all the necessary inspection tools, including monochromatic lights and optical flats, to certify the flatness and surface finish of the mechanical seal after refurbishment and before pressure testing.
Kemet's flat lapping systems are capable of handling all mechanical seal materials, from carbon to silicon carbide, and many mechanical seal manufacturers use Kemet machines and consumables during their production processes. This means that the sealing faces will be of the same quality as when they were new. Incorrect lapping or the use of inappropriate abrasives and tools are the most common causes of leaks after valve repair, leading to extended servicing turnaround times. To ensure that repairs are performed correctly the first time, especially during time-critical plant shutdowns, Kemet has developed a lapping kit for Tyco, Crosby, and Anderson Greenwood pressure relief valves.
Kemet is also capable of providing systems for lapping convex or concave seal faces, which are becoming increasingly common. The company's 24-inch lapping and polishing machine is significantly less expensive than some silicon carbide seals and is an excellent option for companies looking to reduce costs.
For large components that cannot be brought to the laboratory for field metallographic replication procedures, Kemet's Portable Grinder Polisher & Etching unit offers non-destructive replication techniques on-site, ideal for both flat and curved surfaces. The major application areas for this kit are power plants, petroleum, and natural gas pipelines.
Kemet offers a comprehensive lineup of lapping machines designed for maintenance workshops, encompassing choices that replicate the techniques employed by seal and valve producers. Among these offerings, the most substantial among the standard models is equipped to refine gate valves of up to one metre in size. Conversely, more compact and easily transportable systems draw inspiration from the Kemet 15 machine. This model, designed to be mounted on a workbench, excels in refining seal surfaces of up to five inches in diameter.
Kemet International is a reliable and innovative partner for companies looking to reduce costs and improve the efficiency of their mechanical seal repair and refurbishment processes.
Find out more about Kemet International Ltd on their member profile page here
Member-created content 1 year ago | From members