GEMÜ, a high-quality valves, measurement and control systems manufacturer, has modified the coating on the valve bodies in its series of concentric, soft-seated GEMÜ 480 Victoria® butterfly valves. In line with the new standard, a 250 µm epoxy coating will be used from now on. The screws 
and bolts for fixing the actuators are manufactured from stainless steel. As a result of this and other measures, such as optimised workpiece pre-treatment before the coating process itself, all product configurations now comply with the requirements of the C5M, medium-durability classification as stipulated in DIN EN ISO 12944.
The improved coating means that the butterfly valve can now also be used in coastal and offshore areas, as well as in buildings with permanent condensation and pollution. At the same time, compliance with this standard affords the customer a certain degree of certainty when it comes to planning, as the service life of the valve is more predictable.