主要用途:是采用节流耗能达到降压的功能，能使高压、超高压设备和高压管道内的高压水通过此阀将高压水降至低压所需压力后排出，使高压系统压力均匀降低。
由油缸、阀体两部分组成。
而节流孔板和高压调节阀设计为一体，阀门开关排泄流量和降压由液压缸行程控制。
能任意调整排泄压力及流量，安全，方便。
比例减压阀:压降从50兆帕至于1.6兆帕，可以调节排泄压力DG5S 8 2A M FTWL B5 30
DG5S 8 2AL T M U H5 30
DG5S 8 2C T M FW B6 40
DG5S 8 2N T M U H5 30
DG5S 8 6C T M FTWL D5 30
DG5S 8 6C T M U H7 40
DG5S H8 0A E MU A6 41
DG5S H8 0AL M U H5 50
DG5S H8 0C 2 S VM U H5 5
DG5S H8 0C E M U H5 50
DG5S H8 2A M U C5 50
DG5S H8 2A M U H5 50
DG5S H8 2A T VM U H5 50
DG5S H8 2C 2 M U C6 41
DG5S H8 2C M U D6 41
DG5S H8 2C M U H5 50
DG5S H8 2C T M U A5 50
DG5S H8 6C 2 E M U H5 50
DG5S H8 6C 2 T M U H5 50
DG5S H8 6C E M U A6 41
DG5S H8 6C M U H5 50
DG5S H8 6C T M U C5 50
DG5S H8 6C T M U H5 50
DG5S H8 8C 2 VM U H5 50
DG5S H8 8C E VM U H5 50
DG5S H8 8C VM U A5 50
DG5S4 02 2AL M U H5 20
DG5S4 040AL M U H5 60
DG5S4-02-2C-T-M-U-B5-20
DG5S4-040AL-T-M-U-H5-60
DG5S4-040C-M-U-H5-60
DG5S4-042A-E-M-U-H5-60
DG5S4-042AL-M-U-H5-60
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DG5S4-042A-T-M-U-H5-60
DG5S4-042BL-T-M-U-H5-60
DG5S4-042B-T-M-U-H5-60
DG5S4-042C-M-U-H5-60
DG5S4-042C-T-M-U-H5-60
DG5S4-042N-M-U-D5-60
DG5S4-042-T-60-EN546
DG5S4-0431B-M-U-H5-60
DG5S4-0431C-M-U-H5-60
DG5S4-0431C-T-M-U-H5-60
DG5S4-043C-M-U-H5-60
DG5S4-043C-T-M-U-H5-60
DG5S4-046AL-E-M-U-H5-60
DG5S4-046C-T-M-U-H5-60
DG5S4-048C-T-V-MUD5-60
DG5S-5-2C-3-M-U-H5-30
DG5S-8-0B-M-U-H5-30
DG5S-8-2A-K-M-FW-B5-30
DG5S-8-2A-M-FW-B5-30
DG5S-8-2A-M-FW-B5-30
DG5S-8-2A-M-FW-D5-30
DG5S-8-2A-M-U-H5-30
DG5S-8-2A-T-M-FPA5WL-B5-
DG5S-8-2A-T-M-FW-B5-30
DG5S-8-2A-T-M-U-G5-30
DG5S-8-2A-T-M-U-H7-40
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DG5S-8-2C-E-M-U-H5-30
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DG5S-8-2C-M-U-D5-30
DG5S-8-2C-M-U-H5-30
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DG5S-8-2C-T-M-U-H7-40
DG5S-8-2N-M-FPA5WL-B5-30
DG5S-8-2N-T-K-M-FPA5WL-B
DG5S8-2N-T-K-M-FPA5WL-B5-30
DG5S-8-2N-T-K-M-U-H5-30
DG5S-8-31C-M-U-D5-30
DG5S-8-3C-M-U-H5-30
DG5S-8-6A-E-T-M-FW-B6-40
DG5S-8-6BL-M-U-H5-30
DG5S-8-6C-2-T-M-FPA5WL-B
DG5S-8-6C-M-U-H5-30
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DG5S-H8-521C-2-E-T-M-U-H
DG5S-H8-6AL-E-M-U-H5-60
DG5S-H8-6C-2-M-U-H5-50
DG5S-H8-6C-2-VM-U1-H5-70（带插头）
DG5S-H8-6C-M-U-D6-41
DG5S-H8-8C-2-E-VM-U-H5-5
DG5S-H8-8C-2-S-VM-U-A5-50
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DG5S-H8-OC-2-S-M-U-H5-50