DR…30B/…型先导式减压阀 通径有10，20，和30，压力可达到31.5MPa，流量可达到320L/min. 有板式连接，管式连接，插装式连接。 DR型减压阀是先导控制的减压阀，用于降低系统中某一回路的压力。 主要由先导阀，主阀和单向阀组成（也可以不带单向阀） 并且有三种压力调节形式：手柄、带保护罩的内六角调节螺栓、带锁手柄。 我司销售北京华德HUADE电磁溢流阀，北京华德HUADE直动式溢流阀，北京华德HUADE比例溢流阀，北京华德HUADE电磁换向阀，北京华德HUADE液控换向阀，北京华德HUADE电液换向阀，北京华德HUADE单向阀，北京华德HUADE插入式单向阀，北京华德HUADE液控单向阀，北京华德HUADE电磁线圈，北京华德HUADE顺序阀，北京华德HUADE减压阀，北京华德HUADE平衡阀，北京华德HUADE马达，北京华德HUADE压力继电器，北京华德HUADE节流截止阀，北京华德HUADE手动换向阀，北京华德HUADE定量泵，北京华德电液溢流阀 北京华德压力继电器 HED4OP15B/50Z14L24S HED4OP15B/100Z14L24S HED4OP15B/350Z14L24S HED4OP15B/50Z14L110S HED4OP15B/100Z14L110S HED4OP15B/350Z14L110S HED4OP15B/50Z14L220S HED4OP15B/100Z14L220S HED4OP15B/350Z14L220S HED4OA15B/50Z14L24S HED4OA15B/100Z14L24S HED4OA15B/350Z14L24S HED4OA15B/50Z14L110S HED4OA15B/100Z14L110S HED4OA15B/350Z14L110S HED4OA15B/50Z14L220S HED4OA15B/100Z14L220S HED4OA15B/350Z14L220S 北京华德电液溢流阀 DB3U30GH-2-30B/100XW220-50NZ4 DB3U30GH-2-30B/100XW220-50NZ5 DB3U30GH-2-30B/100XW220-50NZ5L 北京华德电磁换向阀 3WE4G10B/OFAG12N9Z4 3WE4G10B/OFAG12N9Z5 3WE4G10B/OFAG12N9Z5L 北京华德电磁溢流阀 DBW15AG-1-30B/100W220-50NZ4 DBW15AG-1-30B/100W220-50NZ5 DBW15AG-1-30B/100W220-50NZ5L DBW15AG-1-30B/100G24NZ4 DBW15AG-1-30B/100G24NZ5 DBW15AG-1-30B/100G24NZ5L