PN25/PN16 metal seated Butterfly valve DIN EN 593, main structural features of the German standard series of butterfly valves are wafer type and flange type, adopting Triple Offset sealing form, and the valve seat sealing ring adopts a multi-layer sealing structure compatible with soft and hard, and its sealing performance is reliable, ensuring that the butterfly plate does not touch the sealing seat when it is opened , Eliminate the uneven load of the sealing seat, prolong the service life, ensure reliable sealing performance, and have the advantages of high temperature resistance, wear resistance and corrosion resistance. German standard butterfly valves are widely used in petroleum, chemical and industrial environmental protection water treatment, high-rise buildings, water supply and drainage and other pipelines.
Frequently Asked Questions
Should my order specify PN16 or PN25?
Use the designation required by the approved piping specification and provide the actual pressure-temperature conditions. Confirm the selected valve and mating flange requirements rather than treating the two designations as interchangeable.
Will I receive the flanged version shown in the product title?
The page also discusses wafer configurations within the series. Explicitly identify the flanged connection, size and facing required and confirm them on the order drawing before purchase.
What seat construction should I confirm for this metal-seated series?
The page refers to a multilayer sealing arrangement. Ask for the exact seat construction and materials for the selected order, together with their suitability for your medium and operating conditions; the series name alone does not define every sealing component.