单向阀内部有个弹簧和一个挡板，液体沿阀体箭头方向正向流动时推动挡板压缩弹簧打开阀芯，介质顺利通过，反之，当工作介质反向流动时，挡板被压在密封台阶上，阀芯关闭，阻止液体回流。
单向阀的技术参数：
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0 C1 T6ED 042 0382L00 C1KR-012/2 35
KR-012/4
KR-012/4 35
KR-012/8 35WKG型叠加式减压阀
WATO WHG-031/210 WATO WHG-033
WATO WHG-034
WATO WKG-031 WATO WKG-033 WATO WKG-034 威托wato WHQ，WKQ，WJPQ型叠加式单向节流阀
WATO WHQ-012
WATO WHQ-013
WATO WHQ-014 WATO WHQ-022 WATO WHQ-023 WATO WHQ-024 WATO WKQ-012 WATO WKQ-013
WATO WKQ-014
KR-012/D 35威托WATO WDR型单向阀
WATO WDR-06v
WATO WDR-10WATO WDR-15WATO WDR-25
威托wato WHMP，WKM型叠加式溢流阀
WATO WHMP-011/210
WATO WKM-012/210 WATO WHMP-012 WATO WHMP-013 WATO WHMP-014
WATO WHMP-015
WATO WKM-011 WATO WKM-013 WATO WKM-014 WATO WKM-015威托wato WHG，WKG型叠加式减压阀
WATO WHG-031/210 WATO WHG-033
WATO WHG-034
WATO WKG-031 WATO WKG-033 WATO WKG-034 威托wato WHQ，WKQ，WJPQ型叠加式单向节流阀
WATO WHQ-012
WATO WHQ-013
WATO WHQ-014 WATO WHQ-022 WATO WHQ-023 WATO WHQ-024 WATO WKQ-012 WATO WKQ-013
WATO WKQ-014
WATO WKQ-022 WATO WKQ-023 WATO WKQ-024 WATO WJPQ-212 WATO WJPQ-213 WATO
WJPQ-214 WATO WJPQ-222 WATO WJPQ-223 WATO WJPQ-224
威托wato WHR，WKR，WJPR型叠加式单向阀
WHR-011
KR-013
KR-013 35
KR-013 35 /PE
KR-013/2
KR-013/4 35
KR-013/D 35
KR-014
KR-014
KR-014/4
KR-016
KR-016
KR-016
KZGO-A-031/210 20
KZGO-A-031/315
KZGO-A-031/315 20
L1QZO-LE-402L4/Q60(现货)
意大利ATOS换向阀，SDHI-0631/2 23
ADR-06 32
ADR-06/4 32
ADR-06/8 32
ADR-10 32
