滑動活塞2在壓縮彈簧3作用下壓在環形區域a上。因此與泵想通的P口同與油箱相通的R口被直徑d處的密封隔離開。一旦工作壓力達到由調節螺釘4調定的壓力，滑動活塞2開始卸荷液壓油至油箱。彈簧腔b由孔c進行壓力補償。開始時，彈簧腔b一定要通過放氣孔5（六角螺釘）進行排氣。
閥盡量垂直安裝，使壓力調定量垂直向下。
該溢流閥有4種壓力調節范圍，這是因為彈簧的壓縮比決定了每種彈簧只能覆蓋有限的壓力調節范圍。
KRACHT齒輪泵現貨型號：
SPVF25C2F1A12
SPVF40A2F1A05
SPVF25C1G1A12
SPV10C1G1A12
SPVF40A2F1A05
SPVF40A2F1A02
SPVF40C2F1A02
SPVF40A2F1A12
SPVF50A2F1A20
SPVF25A2F1A05
SPVF25A2F1A02
SPV10C1G1A07
SPV10C1G1A12
SPV10R1G1A07
KF2.5RF7/74
KF4RF7/74
KF8RF7/74
KF12RF7/74
KF16RF7/74
KF25RF7/74
KF32RF7/74
KF40RF7/74
KF63RF7/74
KF80RF7/74
KF112RF7/74
KF150RF7/74
KF125RF7/74
KF200RF7/74
KF250RF7/74
KF5/315 KF6/730
KF400
VCA2FCR1
KF2.5RF2-D15
KF12RF2-D15
KF20RF2-D15
KF25RF2-D15
KF40RF2-D15
KF32RF2-D15
KF80RF2-D15
KF40LF2-D15
KF63RF2-D15
KF80RF1-D15
KF4/125
KF3/100
KF150RF2-D15
KF125RF2-D15
KF32RF7/74-D15
KF25RF7/74-D15
KF20RF7/74-D15
KF32LF7/74-D15
KF80RF7/74-D15
KF150LF7/74-D15
KF40RF7/74-D15
KF16RF2/158-D15
KF12RF2/158-D15
KF2.5RF2/158-D15
KF4RF2/158-D15
KF25RF2/158-D15
