Diaphragm valve body flow smoothly, cutting components for the elastic diaphragm, valve cover stuffing.
隔膜阀体流通平滑、节流元件为弹性隔膜阀，阀盖上无填料函。
The invention discloses a different-pressure automatic shuttle valve, comprising valve body, through end cover, valve core ball, spring seat, spring, inlet end, outlet port .
本发明公开了一种压差式自动关闭阀，该阀包括阀体、通端盖、阀芯球、弹簧座、弹簧、进口端、出口端；
The utility model relates to a single-action two-way equalizing valve, comprising a valve body, a valve plug, a valve rod, a pressing cover, a compensating cushion ring, etc.
本实用新型是一种单动双通平衡阀，由阀体、阀塞、阀杆、压盖、补偿垫圈等组成。
A valve body is connected with a tower cover through soft seal, and pressed by a bracket through a bolt. The valve rod, the tower cover and a gland are pressed and sealed by filler.
阀杆、塔型盖、格兰通过填料压紧密封，阀杆与执行机构通过固定于支架上的推力螺母实现上下运动。
The vacuum freshness preservation box comprises a box body, a cover body, an inflating valve and an air pumping valve.
真空保鲜盒包括盒体，盖体，充气阀和抽气阀。
The vacuum freshness preservation box comprises a box body, a cover body, an inflating valve and an air pumping valve.
真空保鲜盒包括盒体，盖体，充气阀和抽气阀。
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