52NN及52L系列54NN及54L系列56NN及56L系列防护型可调范围回差防爆型型号KpaKpa型号52NN-K116-M4-B1A4.98-0-4.580.2252L-K116-M4-B1A52NN-K117-M4-B1A9.96-0-9.960.2752L-K117-M4-B1A54NN-K117-M4-B1A51-0-511.6954L-K117-M4-B1A54NN-K118-M4-B1A102-01.6954L-K118-M4-B1A56NN-K216-M2-F1A102-0-683.456L-K216-M2-F1A56NN-K316-M2-F1A102-0-5424.756L-K316-M2-F1A52工作压力:1.38Mpa保护压力：2.76Mpa545.17Mpa6.89Mpa5610.3Mpa17.2Mpa)