泵阀件采用带导向杆的半球形柱塞结构，弹簧制动，精确控制阀球与阀座对中，启闭动作及时。
The pump valve has a structure of semi-spheric plunger with guide rod, and its seat and ball are aligned by means of a spring, and it is opened and closed in time.
膜片弹簧式气制动阀作为控制阀已广泛地应用于拖拉机挂车制动系统。
Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.
汽车制动应急系统自动控制阀，在整体式铝合金外壳内，由左、右两部分组成。
The utility model relates to a self control valve for an automobile brake emergency system, comprising a left and a right part in an entire aluminum alloy housing.
汽车制动应急系统自动控制阀，在整体式铝合金外壳内，由左、右两部分组成。
The utility model relates to a self control valve for an automobile brake emergency system, comprising a left and a right part in an entire aluminum alloy housing.
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