Lapping solutions for valve manufacturers

Ensuring an effective seal is critical to valve manufacture, whether it is a gate, ball or butterfly valve, and the extreme environments in which valves operate can sometimes cause leaks to develop in a system, leading to costly onsite repairs.

Engis says that for high pressure valves, or those exposed to corrosive gases or fluids, a gasket or O-Ring cannot be used as the sealing approach. In these cases, where two high precision metal surfaces need to be mated and different surface textures are required to avoid galling, Engis Hyprez Flat Lapping Systems can offer the fit and finish required to extend valve life.

For lapping ball valves, Engis has a range of diamond compounds, powders, slurries and lubricants; Engis L compound provides superior cut rates and finishes for a wide range of valve seating applications. Engis diamond slurries, compounds and lubricants are suitable for the precision polishing of the balls themselves.