TAICIN泰炘柱塞泵SP22-A1-F-R-01-51油泵SP22-A3-F-R-51

150T-116，150T-116-F-R,150T-125-F-R，150T-125,150T-48-F-R，150T-48，150T-61，150T-61-F-R

150T-75，150T-75-F-R，150T-94，150T-94-F-R

50T-07，50T-07-F-R，50T-12，50T-12-F-R，50T-14，50T-14-F-R，50T-17，50T-17-F-R

50T-19，50T-19-F-R，50T-21-F-R，50T-23，50T-23-F-R，50T-26，50T-26-F-R,50T-30-F-R

50T-30，50T-36，50T-36-F-R，50T-40，50T-40-F-R

FVMB-1V-10，FVMB-1V-10-L，FVMB-2V-10，FVMB-2V-10-L，FVMB-3V-10，FVMB-3V-10-L

FVMB-4V-10，FVMB-4V-10-L，FVMB-5V-10，FVMB-5V-10-L

FVMF-1V-10，FVMF-1V-10-L，FVMF-2V-10，FVMF-2V-10-L，FVMF-3V-10，FVMF-3V-10-L

FVMF-4V-10，FVMF-4V-10-L，FVMF-5V-10，FVMF-5V-10-L

FVSB-1V-10，FVSB-1V-10-L，FVSB-2V-10，FVSB-2V-10-L，FVSB-3V-10，FVSB-3V-10-L

FVSB-4V-10，FVSB-4V-10-L，FVSB-5V-10，FVSB-5V-10-L，FVSB-6V-10，FVSB-6V-10-L

FVSF-1V-10，FVSF-1V-10-L，FVSF-2V-10，FVSF-2V-10-L，FVSF-3V-10，FVSF-3V-10-L

FVSF-4V-10，FVSF-4V-10-L，FVSF-5V-10，FVSF-5V-10-L，FVSF-6V-10，FVSF-6V-10-L

JS-G06-4CA，JS-G06-4CD-75，JSP-G03-2CA-40

KSO-G02-2BA-10，KSO-G02-2BA-30-N，KSO-G02-2BP-30-N，KSO-G02-2CA，KSO-G02-2CA-10

KSO-G02-2CA-30，KSO-G02-2CP-10，KSO-G02-2CP-30-N，KSO-G02-2DP，KSO-G02-3AA-30-T66

KSO-G02-4CA，KSO-G02-4CA-10，KSO-G02-4CA-30，KSO-G02-4CB-30，KSO-G02-4CP，KSO-G02-4CP-30-N

KSO-G02-7CA-30-N，KSO-G03-2BP-30-N，KSO-G03-2DD-20，KSO-G03-4CB-20，KSO-G04-29CY

KSO-GO2-2DA-30，KSO-GO2-44CP-30

SP08-A0-F-R-01-51，SP08-A1-F-R-01-51，SP08-A2-F-R-01-51，SP08-A3-F-R-01-51

SP16-A0-F-R-01-51，SP16-A1-F-R-01-51，SP16-A2-F-R-01-51，SP16-A3-F-R-01-51

SP36-A0-F-R-01-51，SP36-A1-F-R-01-51，SP36-A2-F-R-01-51，SP36-A3-F-R-01-51

SP46-A0-F-R-01-51，SP46-A1-F-R-01-51，SP46-A2-F-R-01-51，SP46-A3-F-R-01-51

SP70-A1-F-R-01-51，SP70-A2-F-R-01-51，SP70-A3-F-R-01-51

TS-G02-20A，TS-G02-20AA，TS-G02-20AB，TS-G02-20AC，TS-G02-20AD，TS-G02-20AP

TS-G02-20B，TS-G02-20BA，TS-G02-20BB，TS-G02-20BC，TS-G02-20BD，TS-G02-20BP

TS-G02-2A，TS-G02-2A-2T，TS-G02-2AA，TS-G02-2AA-10，TS-G02-2AB，TS-G02-2AB-10

TS-G02-2AC，TS-G02-2AC-10，TS-G02-2AD，TS-G02-2AD-10，TS-G02-2A-H2，TS-G02-2A-H8

TS-G02-2A-H91，TS-G02-2AP，TS-G02-2AP-10，TS-G02-2B，TS-G02-2B-2T，TS-G02-2B-81T

TS-G02-2B-9T，TS-G02-2BA，TS-G02-2BA-10，TS-G02-2BB，TS-G02-2BB-10，TS-G02-2BB-2T-HC

TS-G02-2BC，TS-G02-2BC-10，TS-G02-2BD，TS-G02-2BD-10，TS-G02-2B-H2，TS-G02-2BP

TS-G02-2BP-10，TS-G02-2BP-H，TS-G02-2CA，TS-G02-2CA-10，TS-G02-2CB，TS-G02-2CB-10

TS-G02-2CB-H，TS-G02-2CC，TS-G02-2CC-10，TS-G02-2CD，TS-G02-2CD-10，TS-G02-2CP

TS-G02-2CP-10，TS-G02-2CP-H，TS-G02-2D，TS-G02-2DA，TS-G02-2DA-10，TS-G02-2DB

TS-G02-2DB-10，TS-G02-2DC，TS-G02-2DC-10，TS-G02-2DD，TS-G02-2DD-10，TS-G02-2DP

TS-G02-2DP-10，TS-G02-2DP-N-T，TS-G02-2N，TS-G02-2NA，TS-G02-2NB，TS-G02-2NC

TS-G02-2ND，TS-G02-2NP，TS-G02-3A，TS-G02-3AA，TS-G02-3AB，TS-G02-3AC，TS-G02-3AD

TS-G02-3A-H3，TS-G02-3AP，TS-G02-3A-T5，TS-G02-3A-T51，TS-G02-3A-T66，TS-G02-3B

TS-G02-3B-3T，TS-G02-3B-51H，TS-G02-3B-5H，TS-G02-3B-66H，TS-G02-3BA，TS-G02-3BA-10

TS-G02-3BB，TS-G02-3BB-10，TS-G02-3BC，TS-G02-3BC-10，TS-G02-3BD，TS-G02-3BD-10

TS-G02-3BP，TS-G02-3BP-10，TS-G02-3C，TS-G02-3CA，TS-G02-3CA-10，TS-G02-3CB

TS-G02-3CB-10，TS-G02-3CC，TS-G02-3CC-10，TS-G02-3CD，TS-G02-3CD-10，TS-G02-3CP

TS-G02-3CP-10，TS-G02-44C，TS-G02-44CA，TS-G02-44CA-10，TS-G02-44CB，TS-G02-44CB-10

TS-G02-44CC，TS-G02-44CC-10，TS-G02-44CD，TS-G02-44CD-10，TS-G02-44CP

TS-G02-44CP-10，TS-G02-4C，TS-G02-4CA，TS-G02-4CA-10，TS-G02-4CA-H，TS-G02-4CB

TS-G02-4CB-10，TS-G02-4CB-H，TS-G02-4CC，TS-G02-4CC-10，TS-G02-4CD，TS-G02-4CD-10

TS-G02-4CP，TS-G02-4CP-10，TS-G02-4CP-H，TS-G02-51C，TS-G02-51CA，TS-G02-51CB

TS-G02-51CC，TS-G02-51CD，TS-G02-51CP，TS-G02-5C，TS-G02-5CA，TS-G02-5CB

TS-G02-5CC，TS-G02-5CD，TS-G02-5CP，TS-G02-66C，TS-G02-66CA，TS-G02-66CA-10

TS-G02-66CB，TS-G02-66CB-10，TS-G02-66CC，TS-G02-66CC-10，TS-G02-66CD

TS-G02-66CD-10，TS-G02-66CP，TS-G02-66CP-10，TS-G02-7C，TS-G02-7CA

TS-G02-7CA-10，TS-G02-7CB，TS-G02-7CB-10，TS-G02-7CC，TS-G02-7CC-10

TS-G02-7CD，TS-G02-7CD-10，TS-G02-7CP，TS-G02-7CP-10，TS-G02-81AA

TS-G02-81AB，TS-G02-81AC，TS-G02-81AD，TS-G02-81A-H4，TS-G02-81A-H44

TS-G02-81A-H81，TS-G02-81AP，TS-G02-81C，TS-G02-81CA，TS-G02-81CB

TS-G02-81CC，TS-G02-81CD，TS-G02-81CP，TS-G02-8B44T，TS-G02-8B-44T，TS-G02-8B-4T

TS-G02-8B-8T，TS-G02-8BA，TS-G02-8BB，TS-G02-8BC，TS-G02-8BD，TS-G02-8BP

TS-G02-8C，TS-G02-8CA，TS-G02-8CA-10，TS-G02-8CB，TS-G02-8CB-10，TS-G02-8CC

TS-G02-8CC-10，TS-G02-8CD，TS-G02-8CD-10，TS-G02-8CP，TS-G02-8CP-10，TS-G02-91B-7T

TS-G02-91B-91T，TS-G02-91BA，TS-G02-91BB，TS-G02-91BC，TS-G02-91BD，TS-G02-91BP

TS-G02-91C，TS-G02-91CA，TS-G02-91CB，TS-G02-91CC，TS-G02-91CD，TS-G02-91CP

TS-G02-9AA，TS-G02-9AB，TS-G02-9AC，TS-G02-9AD，TS-G02-9A-H7，TS-G02-9A-H9

TS-G02-9AP，TS-G02-9C，TS-G02-9CA，TS-G02-9CB，TS-G02-9CC，TS-G02-9CD，TS-G02-9CP

TS-G03-20A，TS-G03-20AA，TS-G03-20AA-10，TS-G03-20AB，TS-G03-20AB-10，TS-G03-20AC

TS-G03-20AC-10，TS-G03-20AD，TS-G03-20AD-10，TS-G03-20AP，TS-G03-20AP-10，TS-G03-20B

TS-G03-20BA，TS-G03-20BA-10，TS-G03-20BB，TS-G03-20BB-10，TS-G03-20BC，TS-G03-20BC-10

TS-G03-20BD，TS-G03-20BD-10，TS-G03-20BP，TS-G03-20BP-10，TS-G03-2A，TS-G03-2A-2T

TS-G03-2AA，TS-G03-2AA-10，TS-G03-2AB，TS-G03-2AB-10，TS-G03-2AC，TS-G03-2AC-10

TS-G03-2AD，TS-G03-2AD-10，TS-G03-2A-H2，TS-G03-2A-H8，TS-G03-2A-H91，TS-G03-2AP

TS-G03-2AP-10，TS-G03-2B，TS-G03-2B-2T，TS-G03-2B-81T，TS-G03-2B-9T，TS-G03-2BA

TS-G03-2BA-10，TS-G03-2BB，TS-G03-2BB-10，TS-G03-2BC，TS-G03-2BC-10，TS-G03-2BD

TS-G03-2BD-10，TS-G03-2B-H2，TS-G03-2BP，TS-G03-2BP-10，TS-G03-2BP-C，TS-G03-2C

TS-G03-2CA，TS-G03-2CA-10，TS-G03-2CB，TS-G03-2CB-10，TS-G03-2CB-H，TS-G03-2CC

TS-G03-2CC-10，TS-G03-2CD，TS-G03-2CD-10，TS-G03-2CP，TS-G03-2CP-10，TS-G03-2CP-C

TS-G03-2D，TS-G03-2DA，TS-G03-2DA-10，TS-G03-2DB，TS-G03-2DB-10，TS-G03-2DC

TS-G03-2DC-10，TS-G03-2DD，TS-G03-2DD-10，TS-G03-2DP，TS-G03-2DP-10，TS-G03-2NA

TS-G03-2NA-10，TS-G03-2NB，TS-G03-2NB-10，TS-G03-2NC，TS-G03-2NC-10，TS-G03-2ND

TS-G03-2ND-10，TS-G03-2NP，TS-G03-2NP-10，TS-G03-3A，TS-G03-3AA，TS-G03-3AA-10

TS-G03-3AB，TS-G03-3AB-10，TS-G03-3AC，TS-G03-3AC-10，TS-G03-3AD，TS-G03-3AD-10

TS-G03-3A-H3，TS-G03-3AP，TS-G03-3AP-10，TS-G03-3A-T5，TS-G03-3A-T51，TS-G03-3A-T66

TS-G03-3B，TS-G03-3B-3T，TS-G03-3B-51H，TS-G03-3B-5H，TS-G03-3B-66H，TS-G03-3BA

TS-G03-3BA-10，TS-G03-3BB，TS-G03-3BB-10，TS-G03-3BC，TS-G03-3BC-10，TS-G03-3BD

TS-G03-3BD-10，TS-G03-3BP，TS-G03-3BP-10，TS-G03-3C，TS-G03-3CA，TS-G03-3CA-10

TS-G03-3CB，TS-G03-3CB-10，TS-G03-3CC，TS-G03-3CC-10，TS-G03-3CD，TS-G03-3CD-10

TS-G03-3CP，TS-G03-3CP-10，TS-G03-44C，TS-G03-44CA，TS-G03-44CA-10，TS-G03-44CB

TS-G03-44CB-10，TS-G03-44CC，TS-G03-44CC-10，TS-G03-44CD，TS-G03-44CD-10，TS-G03-44CP

TS-G03-44CP-10，TS-G03-4C，TS-G03-4CA，TS-G03-4CA-10，TS-G03-4CB，TS-G03-4CB-10

TS-G03-4CB-H，TS-G03-4CC，TS-G03-4CC-10，TS-G03-4CD，TS-G03-4CD-10，TS-G03-4CP

TS-G03-4CP-10，TS-G03-4CP-C，TS-G03-4CP-H，TS-G03-51C，TS-G03-51CA，TS-G03-51CA-10

TS-G03-51CB，TS-G03-51CB-10，TS-G03-51CC，TS-G03-51CC-10，TS-G03-51CD，TS-G03-51CD-10

TS-G03-51CP，TS-G03-51CP-10，TS-G03-5C，TS-G03-5CA，TS-G03-5CA-10，TS-G03-5CB

TS-G03-5CB-10，TS-G03-5CC，TS-G03-5CC-10，TS-G03-5CD，TS-G03-5CD-10，TS-G03-5CP

TS-G03-5CP-10，TS-G03-66C，TS-G03-66CA，TS-G03-66CA-10，TS-G03-66CB，TS-G03-66CB-10

TS-G03-66CC，TS-G03-66CC-10，TS-G03-66CD，TS-G03-66CD-10，TS-G03-66CP，TS-G03-66CP-10

TS-G03-7C，TS-G03-7CA，TS-G03-7CA-10，TS-G03-7CB，TS-G03-7CB-10，TS-G03-7CC，TS-G03-7CC-10

TS-G03-7CD，TS-G03-7CD-10，TS-G03-7CP，TS-G03-7CP-10，TS-G03-81AA，TS-G03-81AA-10

TS-G03-81AB，TS-G03-81AB-10，TS-G03-81AC，TS-G03-81AC-10，TS-G03-81AD，TS-G03-81AD-10

TS-G03-81A-H4，TS-G03-81A-H44，TS-G03-81A-H81，TS-G03-81AP，TS-G03-81AP-10，TS-G03-81C

TS-G03-81CA，TS-G03-81CA-10，TS-G03-81CB，TS-G03-81CB-10，TS-G03-81CC，TS-G03-81CC-10

TS-G03-81CD，TS-G03-81CD-10，TS-G03-81CP，TS-G03-81CP-10，TS-G03-8B44T，TS-G03-8B-44T

TS-G03-8B-4T，TS-G03-8B-8T，TS-G03-8BA，TS-G03-8BA-10，TS-G03-8BB，TS-G03-8BB-10，TS-G03-8BC

TS-G03-8BC-10，TS-G03-8BD，TS-G03-8BD-10，TS-G03-8BP，TS-G03-8BP-10，TS-G03-8C，TS-G03-8CA

TS-G03-8CA-10，TS-G03-8CB，TS-G03-8CB-10，TS-G03-8CC，TS-G03-8CC-10，TS-G03-8CD

TS-G03-8CD-10，TS-G03-8CP，TS-G03-8CP-10，TS-G03-91B-7T，TS-G03-91B-91T，TS-G03-91BA

TS-G03-91BA-10，TS-G03-91BB，TS-G03-91BB-10，TS-G03-91BC，TS-G03-91BC-10，TS-G03-91BD

TS-G03-91BD-10，TS-G03-91BP，TS-G03-91BP-10，TS-G03-91C，TS-G03-91CA，TS-G03-91CA-10

TS-G03-91CB，TS-G03-91CB-10，TS-G03-91CC，TS-G03-91CC-10，TS-G03-91CD，TS-G03-91CD-10

TS-G03-91CP，TS-G03-91CP-10，TS-G03-9AA，TS-G03-9AA-10，TS-G03-9AB，TS-G03-9AB-10

TS-G03-9AC，TS-G03-9AC-10，TS-G03-9AD，TS-G03-9AD-10，TS-G03-9A-H7，TS-G03-9A-H9

TS-G03-9AP，TS-G03-9AP-10，TS-G03-9C，TS-G03-9CA，TS-G03-9CA-10，TS-G03-9CB，TS-G03-9CB-10

TS-G03-9CC，TS-G03-9CC-10，TS-G03-9CD，TS-G03-9CD-10，TS-G03-9CP，TS-G03-9CP-10，TS-G04-2B

TS-G04-2C，TS-G04-3B，TS-G04-3C，TS-G04-4C，TS-G04-5C，TS-G04-66C，TS-G04-6C，TS-G04-81C

TS-G04-8C，TS-G04-91C，TS-G04-9C，TS-G06，TS-G06-2B，TS-G06-2C，TS-G06-3B，TS-G06-3C

TS-G06-4B，TS-G06-4C，TS-G06-5C，TS-G06-7C，TS-G06-8C，TS-G06-9C

VDV-1A-F20-A-35，VDV-1A-F20-B-35，VDV-1A-F20-C-35，VDV-1A-F20-D-35，VDV-1A-F25-A-35

VDV-1A-F25-B-35，VDV-1A-F25-C-35，VDV-1A-F25-D-35，VDV-1A-F30-A-35，VDV-1A-F30-B-35

VDV-1A-F30-C-35，VDV-1A-F30-D-35，VDV-1A-F40-A-35，VDV-1A-F40-B-35，VDV-1A-F40-C-35

VDV-1A-F40-D-35，VDV-1A-F54-A-35，VDV-1A-F54-B-35，VDV-1A-F54-C-35，VDV-1A-F54-D-35

VDV-1A-F70-A-35，VDV-1A-F70-B-35，VDV-1A-F70-C-35，VDV-1A-F70-D-35，VDV-1A-F86-A-35

VDV-1A-F86-B-35，VDV-1A-F86-C-35，VDV-1A-F86-D-35，VDV-1B-F20-A-35，VDV-1B-F20-B-35

VDV-1B-F20-C-35，VDV-1B-F20-D-35，VDV-1B-F25-A-35，VDV-1B-F25-B-35，VDV-1B-F25-C-35

VDV-1B-F25-D-35，VDV-1B-F30-A-35，VDV-1B-F30-B-35，VDV-1B-F30-C-35，VDV-1B-F30-D-35

VDV-1B-F40-A-35，VDV-1B-F40-B-35，VDV-1B-F40-C-35，VDV-1B-F40-D-35，VDV-1B-F54-A-35

VDV-1B-F54-B-35，VDV-1B-F54-C-35，VDV-1B-F54-D-35，VDV-1B-F70-A-35，VDV-1B-F70-B-35

VDV-1B-F70-C-35，VDV-1B-F70-D-35，VDV-1B-F86-A-35，VDV-1B-F86-B-35，VDV-1B-F86-C-35

VDV-1B-F86-D-35，VDV-1C-F20-A-35，VDV-1C-F20-B-35，VDV-1C-F20-C-35，VDV-1C-F20-D-35

VDV-1C-F25-A-35，VDV-1C-F25-B-35，VDV-1C-F25-C-35，VDV-1C-F25-D-35，VDV-1C-F30-A-35

VDV-1C-F30-B-35，VDV-1C-F30-C-35，VDV-1C-F30-D-35，VDV-1C-F40-A-35，VDV-1C-F40-B-35

VDV-1C-F40-C-35，VDV-1C-F40-D-35，VDV-2A-F20-A-35，VDV-2A-F20-B-35，VDV-2A-F20-C-35

VDV-2A-F20-D-35，VDV-2A-F25-A-35，VDV-2A-F25-B-35，VDV-2A-F25-C-35，VDV-2A-F25-D-35

VDV-2A-F30-A-35，VDV-2A-F30-B-35，VDV-2A-F30-C-35，VDV-2A-F30-D-35，VDV-2A-F40-A-35

VDV-2A-F40-B-35，VDV-2A-F40-C-35，VDV-2A-F40-D-35，VDV-2A-F54-A-35，VDV-2A-F54-B-35

VDV-2A-F54-C-35，VDV-2A-F54-D-35，VDV-2A-F70-A-35，VDV-2A-F70-B-35，VDV-2A-F70-C-35

VDV-2A-F70-D-35，VDV-2A-F86-A-35，VDV-2A-F86-B-35，VDV-2A-F86-C-35，VDV-2A-F86-D-35

VDV-2B-F20-A-35，VDV-2B-F20-B-35，VDV-2B-F20-C-35，VDV-2B-F20-D-35，VDV-2B-F25-A-35

VDV-2B-F25-B-35，VDV-2B-F25-C-35，VDV-2B-F25-D-35，VDV-2B-F30-A-35，VDV-2B-F30-B-35

VDV-2B-F30-C-35，VDV-2B-F30-D-35，VDV-2B-F40-A-35，VDV-2B-F40-B-35，VDV-2B-F40-C-35

VDV-2B-F40-D-35，VDV-2B-F54-A-35，VDV-2B-F54-B-35，VDV-2B-F54-C-35，VDV-2B-F54-D-35

VDV-2B-F70-A-35，VDV-2B-F70-B-35，VDV-2B-F70-C-35，VDV-2B-F70-D-35，VDV-2B-F86-A-35

VDV-2B-F86-B-35，VDV-2B-F86-C-35，VDV-2B-F86-D-35，VDV-2C-F54-A-35，VDV-2C-F54-B-35

VDV-2C-F54-C-35，VDV-2C-F54-D-35，VDV-2C-F70-A-35，VDV-2C-F70-B-35，VDV-2C-F70-C-35

VDV-2C-F70-D-35，VDV-2C-F86-A-35，VDV-2C-F86-B-35，VDV-2C-F86-C-35，VDV-2C-F86-D-35

VGPE-F25-A-10-35，VGPE-F25-A-2-35，VGPE-F25-A-6-35，VGPE-F25-B-10-35，VGPE-F25-B-2-35

VGPE-F25-B-6-35，VGPE-F25-C-10-35，VGPE-F25-C-2-35，VGPE-F25-C-6-35，VGPE-F25-D-10-35

VGPE-F25-D-2-35，VGPE-F25-D-6-35，VGPE-F30-A-10-35，VGPE-F30-A-2-35，VGPE-F30-A-6-35

VGPE-F30-B-10-35，VGPE-F30-B-2-35，VGPE-F30-B-6-35，VGPE-F30-C-10-35，VGPE-F30-C-2-35

VGPE-F30-C-6-35，VGPE-F30-D-10-35，VGPE-F30-D-2-35，VGPE-F30-D-6-35，VGPE-F40-A-10-35

VGPE-F40-A-2-35，VGPE-F40-A-6-35，VGPE-F40-B-10-35，VGPE-F40-B-2-35，VGPE-F40-B-6-35

VGPE-F40-C-10-35，VGPE-F40-C-2-35，VGPE-F40-C-6-35，VGPE-F40-D-10-35，VGPE-F40-D-2-35

VGPE-F40-D-6-35，VGPE-F45-A-10-35，VGPE-F45-A-2-35，VGPE-F45-A-6-35，VGPE-F45-B-10-35

VGPE-F45-B-2-35，VGPE-F45-B-6-35，VGPE-F45-C-10-35，VGPE-F45-C-2-35，VGPE-F45-C-6-35

VGPE-F45-D-10-35，VGPE-F45-D-2-35，VGPE-F45-D-6-35

减压阀应用及其注意事项

减压阀的应用及其注意事项。

1．减压阀的应用

减压阀主要应用于液压系统中的某支油路的减压、调压和稳压。

(1)组成减压回路。减压阀在夹紧油路、控制油路和润滑油路中应用较多。图1是减压阀用于夹紧油路的原理图，液压泵除供给主油路压力油外，还经分支路上的减压阀为夹紧缸提供较泵油压力低的稳定压力油，其夹紧力大小由减压阀来调节控制。

(2)组成稳压回路。如图2所示，当系统压力波动较大，需要液压缸2有较稳定的输出压力时，在液压缸2进油路上串一减压阀，在减压阀处于工作状态时，可使液压缸2的压力能不受溢流阀压力波动的影响。

(3)组成单向减压回路。当需要执行元件正反向不同时，可采用图3所示的单向减压回路。图中的双点划线框起的单向减压阀是具有单向阀和减压阀作用的组合阀。

(4)组成多级减压回路。利用先导式减压阀的遥控口外接远控减压阀，可以组成二级、三级等减压回路。例如，图4所示为二级减压回路，液压泵6的最大压力由溢流阀5设定。远程调压阀2是否作用由二位二通换向阀3控制，使回路获得二级压力，但调压时必须使阀2与先导式减压阀1的调整压力满足P1＜P2。固定节流器4用于压力变换时出现压力冲击。

通过在液压源处并接几个减压阀也可实现多级减压。例如，在图5所示的三级减压回路中，液压泵5的最大压力由溢流阀4设定，液压源处并接3个调压值互不相同的减压阀1、减压阀2和减压阀3，得到3条独立的减压回路。

(5)与节流阀组成复合阀。利用定差减压阀对进出口压力的压力定差作用，可以将其与节流阀组成调速阀，以实现节流口两端压力差补偿和输出流量的稳定。

2．减压阀使用注意事项

(1)应根据液压系统的工况特点和具体要求选择减压阀的类型，并注意减压阀的启闭特性的变化趋势与溢流阀相反（即通过减压阀的流量增大时二次压力有所减小）。另外，应注意减压阀的泄油量较其他控制阀多，始终有油液从导阀流出（有时多达1Lmin以上），从而影响到液压泵容量的选择。

(2)正确使用减压阀的连接方式，正确选用连接件（安装底板或管接头），并注意连接处的密封；阀的各个油口应正确接人系统，外部泄油口必须直接接回油箱。

(3)根据系统的工作压力和流量合理选定减压阀的额定压力和流量（通径）规格。

(4)应根据减压阀在系统中的用途和作用确定和调节二次压力，必须注意减压阀设定压力与执行器负载压力的关系。主减压阀的二次压力设定值应高于远程调压阀的设定压力。二次压力的调节范围取决于作用的调压弹簧和阀的通过流量。最低调节压力应保证一次与二次压力之差为0.3～1MPa。

(5)调压时应注意以正确旋转方向调节调压机构，调压结束时应将锁紧螺母固定。

(6)如果需通过先导式减压阀的遥控口对系统进行多级减压控制，则应将遥控口的螺堵拧下，接人控制油路；否则应将遥控口严密封堵。

(7)卸荷溢流阀的回油路应直接接油箱，必减少背压。

(8)减压阀出现调压失灵或噪声较大等故障时，可参考下面介绍的方法进行诊断和排除，拆洗过的溢流阀组零件应正确安装，并注意防止二次污染。

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