（1）控制多个元件的顺序动作；
（2）用于保压回路；
（ 3）防止因自重引起油缸活塞自由下落而做平衡阀用；
（4）用外控顺序阀做卸荷阀，使泵卸荷；
（5）用内控顺序阀作背压阀。
顺序阀根据装配结构的不同，可以实现不同的回路功能，如溢流阀、顺序阀和平衡阀的功能。
S20A1.0/B15/12S
S20A1.0/J
S20A1.0/MK
S20A1.0/MT
S20A1.0/S
S20A1.0/S
S20A1.0/S
S20A1.0/S
S20A1.0/S
S20A1.X
S20A1.X/12
S20Anbsp;
S20A2.0//5
S20A2.X
S20Anbsp;
S20A3.0//5
S20A3.0/S
S20A3.X
S20Anbsp;
S20A5.0//5
S20A5.0/B15S
S20A5.0/MK
S20A5.X
S20P00-1X/
S20P05-1X/
S20P05-1X/S
S20P05-1X/VS
S20P15-1X/
S20P15-1X/S
S20P30-1X/
SVCV08-21
SVRV10-26
TS08-20
TS08-27
TS10-26
TS10-27
TS10-36
TS12-26
TS12-27MRD1100G817F1N1N1C1NX+
MRD1100G817F2N1N1C1NX
MRD1100G890P1N1N1N1SX
MRD1800H1307D2N1N1C1NX
MRD1800H1407N1N1N1N1SX
MRD1800H600N1N1N1N1N
MRD1800H905B2N1N1T1NX
MRD1800H905N1N1N1T1N0900/Y5993
MRDN1B1U1L1NX0300/Y59
MRDN1N1N1N1N
MRDN1N1N1N1N
MRD300D150N1N1N1N1N
MRD4500L1560N1N1N1N1N
MRD4500L1560P1N1N1N1N
MRD4500L2251F2M1F1C1N0403/Y610
MRD7000M2280N1N1N1N1N
MRD700F464P1N1N1N1N0800/Y59885
MRD981G781F2N1N1S1NX
MRDE1400G1082F1N1N1C1NX
MRDE1400G641P1N1N1N1NX
MRDE1400G950F1N1N1C1NX1000/Y60
MRDE1400G950F1N1N1N1NX
MRDE2100H1046F2X2N1S1NX
MRDE2100H1046F2X2N1S1NX0900/Y5
MRDE2100H1394D2N1N1N1NX0900/Y6
MRDE275D110D1N1N1N1NX
TS12-36
TS38-20
TS38-21
TS80-30
TS98-30
TS98-31
TS98-T34
ZL70-30
ZL70-31
ZL70-33
ZL70-36
ZL72-30
ZL72-31
ZL72-33
ZL72-36
BV10-40
BV10-42
CR08-38