valve spring seat

The developed drill pipe valve used in gas drilling is made up of nipple, cushion, sealing parts, valve seat, pin bearing, cylindrical torsion spring and valve plate.

气体钻井过程中，常规的配套工具无法满足工艺要求，为此而研制的气体钻井用钻杆阀由钻杆阀短节、缓冲垫、密封部件、阀座、销轴、圆柱扭簧和阀板等组成。

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A new-type electromotive force pot pressure limiting valve, consists of valve bonnet, valve body, thimble, spring, valve eye ring, valve seat, exhaust pipe sealing ring, nut, and exhaust pipe.

一种新型电压力锅限压阀，包括阀盖、阀体、顶针、弹簧、阀提手、阀座、排气管密封圈、螺母、排气管。

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Under the valve spring preload and seating impact force, the deformation at the site of contact accumulated more and more big, eventually leading to the valve seat fatigue failure.

气门座圈在预紧力和落座冲击力的共同作用下，在接触部位变形累计越来越大，最终导致气门座疲劳破坏。

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The valve assembly herein discussed is mainly composed of valve, valve seat, piston, spring and rod.

防止清蜡热液渗入地层的新型井下阀装置主要由阀门 、 阀座 、 活塞 、 弹簧和连杆等组成.

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