安全溢流阀在系统中起安全保护作用。当系统压力超过规定值时，安全阀顶开，将系统中的一部分气体排入大气，使系统压力不超过允许值，从而保证系统不因压力过高而发生事故。
3.必须定期检验及清洗、研磨、试验、调整。
YUKEN比例阀
EDG-01V-H-1-PNT10-60T EDG-01V-H-1-PNT13-51
EDG-01V-C-1-PNT13-60T EDG-01V-C-PNT13-60T
EDG-01V-C-PNT11-60T EDG-01V-C-1-PNT11-50Z
EDG-01V-C-PNT15-51 EDG-01V-H-PNT15-51
EDG-01V-C-PNT11-51 EDG-01V-H-PNT09-51-C
EDG-01V-C-PNT10-60T EDG-01V-H-PNT11-51
EDG-01V-C-PNT13-51 EDG-01V-H-PNT09-51-C
EDG-01V-C-PNT09-50
EDG-01V-H-PN10-50 EDC-01V-H-PNT10-50
EDG-01V-C-1-PNT10-60T
EDG-01V-C-PNT13-50 EDG-01V-C-1-PNT13-60
EDG-01V-H-1-PNT11-50 EDG-01V-H-1-PNT11-60
EDG-01V-H-1-PNT13-60 EDG-01V-H-PNT13-50
油研电磁阀部分型号：
DSG-01-3C4-A240-70 DSG-03-3C4-A220-50 DSG-03-2B2-A220-D24-50
DSG-03-3C2-A220-50 DSG-03-3C4-D24-50 DSG-01-2B3B-A220-50(Y)
DSG-03-3C2-D24-50 DSG-01-2B2B-A220-50 DSG-01-2B3B-D24V
DSG-01-3C4-D24-50 DSG-01-2B2-A110-50 DSG-01-2B2-A220-50
DSG-03-3C4-A220-50 DSG-03-2C2-D24-50 DSG-03-3C2-A220-N-50
DSG-03-2B2-D24-50 DSG-03-3C4-D24-N1-50 DSG-01-2B3B-DC24V
DSG-01-2B2-D24-50 DSG-01-3C4-D24-50 DSG-03-2B2-A200-50
DSG-03-2B2-A220-50 DSG-01-2B2-A220-50 DSG-03-2B2-DC24-50
DSG-03-2C2-DC24-50 DSG-02-3C4-20 DSG-01-2B2-D24-50
DSG-03-2B2B-A220-D24-50 DSG-03-3C2-A100-50
DSG-01-2B3B-A220-50(Y) DSG-03-3C2-A220-N-50
DSG-03-2C2-D24-50 DSG-01-2B3B-A220-50
DSGX-01-3C2-D24-H-2007 DSGX-01-3C4-A100
DSG-01-2B2-A220-50 DSG-01-2B2B-D24-50
DSG-01-3C60-A220-50 DSG-01-2B2-D24-50
DSG-01-3C2-D24-50 DSG-03-2B2-A220-50
DSG-01-3C4-AC200-50-L DSG-03-3C4-A110-50
DSG-03-2B2-A110-50 DSG-01-3C4-A110-50
DSG-01-3C2-220-N1-50 DSG-03-3C60-A110-50
DSG-03-3C2/24V DSG-01-3C2-A110-50
DSG-02-3C4-DL/220V DSG-03-2B2-DL/24V
DSG-02-3C3-DL/220V DSG-02-3C4/220V
DSG-03-3C5-10 DSG-03-3C6-10
DSG-02-3C3-20 DSG-03-3C4-10
DSG-03-3C60-A220-50 DSG-01-2B2-A200-70
DSG-01-3C60-D24-50 DSG-03-3C60-D24-50
DSG-01-3C4-D24-50 DSG-01-3C4-A220-50
DSG-01-3C3-D24-50 DSG-01-3C2-A220-50
DSG-03-2B2-A200-50 DSG-01-2B3B-D24V
DSG-03-3C2-10 DSG-03-3C3-10
DSG-03-3C6-20 DSG-03-2B2-10
DSG-03-3C4-20 DSG-03-3C5-20
DSG-03-3C2-20 DSG-03-3C3-20
DSG-02-3C6-10 DSG-03-2B2-20
DSG-02-3C4-10 DSG-02-3C5-10
DSG-02-3C2-10 DSG-02-3C3-10
DSG-02-3C6-20 DSG-02-2B2-10
DSG-02-3C2-20 DSG-02-3C5-20
MFP-01-10 MFA-01-X-10
MFA-01-Y-10 MFB-01-X-10
MFB-01-Y-10 MFW-01-X-10
MFW-01-Y-10 MSTA-01-X-10
MSTB-01-X-10 MSTW-01-X-10
台湾KZYY叶片泵VP-40-40L-A3.