horizontal single-stage double-suction volute pump 卧式单级双吸蜗壳泵

single-stage and single-suction 单级单吸

double-suction single-stage volute type pump 双吸式单级蜗壳式泵

single-stage end-suction volute pump 单级侧面进口蜗壳泵

single-stage single-suction chemical pump 单级单吸化工泵

single-stage and single-suction centrifugal pump 单级单吸离心泵

first stage suction head 第一级吸气接头

first stage suction valve 第一级吸入阀

second stage suction head 第二级吸气接头

second stage suction valve 第二级吸入阀