某些规范也允许采用外部操作介质，只要这些操作介质系由几个独立的能源供给，或者只要先导式安全阀载荷是有限的。若采用失能开启原理，依先导式安全阀设计结构不同 阀DHI,DHU,DHO,DKE，换向阀 DH-0432/2 73 DH-0471/A 73方向阀 DH-0471/A 73换向阀 DH-0471/A 73手动方向阀 DH-0471/A 73手动换向阀 DH-0471/A 73 DH-0551/2 73方向阀 DH-0551/2 73换向阀 DH-0551/2 73手动方向阀 DH-0551/2 73手动换向阀 DH-0551/2 73 DH-0831/2/A 73方向阀 DH-0831/2/A 73换向阀 DH-0831/2/A 73手动方向阀 DH-0831/2/A 73手动换向阀 DH-0831/2/A 7DLOH-2C-U DLOH-2C/WP-UAEXD4D62-G24/L12 AEXD4D62-G24/L15 AEXD4D62-G24/L15 AEXD4D63-G24/L12 AEXD4D63-G24/L15 AEXD4D65-G24/L9 AEXD4D65-S1788-G24/T6 AEXD4Z60A-G24/L15 AEXD4Z60a-G24/T4-S1788 AEXd4Z60a-M165/187-G24/L12 AEXD4Z60A-M165/187-G24/L12 AEXDVPWV4D102-80-TI-G24/L15 AEXDVPWV4D102-80-TI-S1788-G24/T6 AH4D101a/f AH4D101a/r AH4D61a/r AH4Z60a/r DLOH-3C-U DHI-0630/2 DHI-0614/A DHI-0751/2 DHI-0714 DHI-07119 DHI-0751/2P DHI-0639/O DHI-0713P DKE-1611X230AC DKE-1611X24DC DKE-1632/2X24DC DKE-1714X24DC DKE-1751/2 DPHI-2711/D DH-0140 DH-0113/BT DH-0143 DH-0151 E-ME-AC-01F E-ME-AC-05F E-MI-AC-01F E-A-PS-USB/IR E-MI-AC-IR-01H DH-0901/2方向阀 DH-0901/2换向阀 DH-0901/2手动方向阀 DH-0901/2手动换向阀 DH-0901/2 DH-0914 73方向阀 DH-0914 73换向阀 DH-0914 73手动方向阀 DH-0914 73手动换向阀 DH-0914 73 DK-1111 50方向阀 DK-1111 50换向阀 DK-1111 50手动方向阀 DK-1111 50手动换向阀 DK-1111 50 DK-1113方向阀 DK-1113换向阀 DK-1113手动方向阀 DK-1113手动换向阀 DK-1113 DK-1114方向阀 DK-1114换向阀 DK-1114手动方向阀 DK-1114手动换向阀 DK-1114 DK-1131 50方 |
