"butterfly valve" in German butterfly valve Absperrklappe Drehklappe Regelklappe Rauchklappe Schmetterlingsklappe Detailed translations for "butterfly valve" butterfly valve 1. technology butterfly valve die Absperrklappe{feminine} butterfly valve die Drehklappe{feminine} butterfly valve die Regelklappe{feminine} butterfly valve(also: butterfly damper) die Rauchklappe{feminine} 2. technology, check valve butterfly valve die Schmetterlingsklappe{feminine}