There are also sealing washers on the plates, which are used to seal pas-sages and lead fluids into passages alternatively.
板上装有密封垫圈，用以密封通道并将流体交替引导到通道中。
The novel sealing element for the novel submerged pulse valve replaces original O-shaped packing washers, thereby guaranteeing the sealing performance between the pulse valve and air bags.
本实用新型用新型的密封件替代了原有的O型密封圈，从而保证了脉冲阀和气包之间的密封性能。
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