一:概述罗茨风机消声器主要适用于降低罗茨系列风机的进气噪声，也可以用于对排气管道及其它高压风机的降噪，消声量15-30dB（A），压力损失少于500Pa。二:规格型号型号法兰内径d(mm)外径D(mm)长度L(mm)有效长度L1(mm)***大风量(m3/min)DF-505020010008001.3/2.5DF-8080250120010005/7DF-1501504001500120010/20DF-2002004501700140030/40DF-3003006001900160060/80DF-35035080021001800120/160DF-40040090021001800200DF-500500100021001800250)