手动换向阀是靠受柄操作的方向阀，在液压系统中用以控制油流的方向，以达到工作机械改变方向的目的。手动换向阀具有如下系列型号：24SO-L10H-*,24SH-L10H-*,24SY-L10H-*,24SZ-L10H-*,24SP-L10H-*,24SM-L10H-*,24SK-L10H-*,24SX-L10H-*,24SC-L10H-*,24SJ-L10H-*,24SN-L10H-*,24SO-B10H-*,24SH-B10H-*,24SY-B10H-*,24SZ-B10H-*,24SP-B10H-*,24SM-B10H-*,24SK-B10H-*,24SX-B10H-*,24SC-B10H-*,24SJ-B10H-*,24SN-B10H-*,34SO-L10H-*,34SH-L10H-*,34SY-L10H-*,34SZ-L10H-*,34SP-L10H-*,34SM-L10H-*,34SK-L10H-*,34SX-L10H-*,34SC-L10H-*,34SJ-L10H-*,34SN-L10H-*,34SO-B10H-*,34SH-B10H-*,34SY-B10H-*,34SZ-B10H-*,34SP-B10H-*,34SM-B10H-*,34SK-B10H-*,34SX-B10H-*,34SC-B10H-*,34SJ-B10H-*,34SN-B10H-*,24SO-L20H-*,24SH-L20H-*,24SY-L20H-*,24SZ-L20H-*,24SP-L20H-*,24SM-L20H-*,24SK-L20H-*,24SX-L20H-*,24SC-L20H-*,24SJ-L20H-*,24SN-L20H-*,24SO-B20H-*,24SH-B20H-*,24SY-B20H-*,24SZ-B20H-*,24SP-B20H-*,24SM-B20H-*,24SK-B20H-*,24SX-B20H-*,24SC-B20H-*,24SJ-B20H-*,24SN-B20H-*,34SO-L20H-*,34SH-L20H-*,34SY-L20H-*,34SZ-L20H-*,34SP-L20H-*,34SM-L20H-*,34SK-L20H-*,34SX-L20H-*,34SC-L20H-*,34SJ-L20H-*,34SN-L20H-*,34SO-B20H-*,34SH-B20H-*,34SY-B20H-*,34SZ-B20H-*,34SP-B20H-*,34SM-B20H-*,34SK-B20H-*,34SX-B20H-*,34SC-B20H-*,34SJ-B20H-*,34SN-B20H-*,24SO-L32H-*,24SH-L32H-*,24SY-L32H-*,24SZ-L32H-*,24SP-L32H-*,24SM-L32H-*,24SK-L32H-*,24SX-L32H-*,24SC-L32H-*,24SJ-L32H-*,24SN-L32H-*,24SO-B32H-*,24SH-B32H-*,24SY-B32H-*,24SZ-B32H-*,24SP-B32H-*,24SM-B32H-*,24SK-B32H-*,24SX-B32H-*,24SC-B32H-*,24SJ-B32H-*,24SN-B32H-*,34SO-L32H-*,34SH-L32H-*,34SY-L32H-*,34SZ-L32H-*,34SP-L32H-*,34SM-L32H-*,34SK-L32H-*,34SX-L32H-*,34SC-L32H-*,34SJ-L32H-*,34SN-L32H-*,34SO-B32H-*,34SH-B32H-*,34SY-B32H-*,34SZ-B32H-*,34SP-B32H-*,34SM-B32H-*,34SK-B32H-*,34SX-B32H-*,34SC-B32H-*,34SJ-B32H-*,34SN-B32H-*。