调节阀的发展自20世纪初始已有八十年的历史，先后产生了十个大类的调节阀产品、自力式阀和***器等，调节阀和控制阀的发展历程如下：20年代：原始的稳定压力用的调节阀问世。30年代：以“V”型缺口的双座阀和单座阀为代表产品V型调节球阀问世。HOYEA电磁阀华液电磁阀FW-02-3C2-D24-50FW-02-3C3-D24-50FW-02-3***-D24-50FW-02-3C5-D24-50FW-02-3C6-D24-50FW-02-3C7-D24-50FW-02-3C8-D24-50FW-02-3C9-D24-50FW-02-3C10-D24-50FW-02-3C11-D24-50FW-02-3C12-D24-50FW-02-3C25-D24-50FW-02-2B2-D24-50FW-02-2B3-D24-50FW-02-2B8-D24-50FW-02-2B2B-D24-50FW-02-2B3B-D24-50FW-02-2B4B-D24-50FW-02-2B9B-D24-50FW-02-2B11B-D24-50FW-02-2B12B-D24-50FW-02-2B2BL-D24-50FW-02-2B3BL-D24-50FW-02-2B2L-D24-50FW-02-2B3L-D24-50FW-02-2B8L-D24-50FW-02-2B11BL-D24-50FW-02-2B12BL-D24-50FWH系列电液换向阀HOYEA换向阀HOYEA电液换向阀华液换向阀华液FWH电液换向阀FWH-04-2B2-A220Z5L,FWH-04-2B3-A220Z5L,FWH-04-2B8-A220Z5L,FWH-06-3C2-A220Z5L,FWH-06-3***-A220Z5L,FWH-06-3C3-A220Z5L,FWH-04-3C3-D12Z5L,FWH-04-3***0-D12Z5L,FWH-04-3C60-D12Z5L,FWH-04-3C9-D12Z5L,FWH-04-3C10-D12Z5L,FWH-04-3C11-D12Z5L,FWH-04-3C12-D12Z5L,FWH-04-2D2-D12Z5L,FWH-04-2B2-D12Z5L,FWH-04-2B3-D12Z5LFWH-06-2B2-D12Z5L,FWH-06-2B3-D12Z5LFWH-06-3C60-A220Z5L,FWH-06-3C9-A220Z5LFWH-06-3C11-A220Z5L,FWH-03-3C2-A220Z5L,FWH-03-3***-A220Z5LFWH-04-3C2-A110Z5L,FWH-04-3***-A110Z5LFWH-04-3C2-D24Z5L,FWH-04-3***-D24Z5LFWH-06-3***-D24Z5L)