这种分类方法既按原理、作用又按结构划分，是国内、国际***常用的分类方法。一般分为九个大类：(1）单座调节阀；(2)双座调节阀；(3)套筒调节阀；(4）角形调节阀；(5)三通调节阀；(6）隔膜阀；(7）蝶阀；(8）球阀；(9）偏心旋转阀。前6种为直行程，后三种为角行程。这九种产品亦是***基本的产品，也称为普通产品、基型产品或标准产品。各种各样的特殊产品、专用产品都是在这九类产品的基础上改进变型出来的。FW-03-2B3B-A110-50FW-03-2B4B-A110-50FW-03-2B9B-A110-50FW-03-2B11B-A110-50FW-03-2B12B-A110-50FW-03-2B2BL-A110-50FW-03-2B3BL-A110-50FW-03-2B2L-A110-50HOYEA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,)