This paper introduces the structure, composition, working principle and design character of automatical welding device of YSP 15 liquidized petroleum bottle valve base.

介绍了YSP - 15型钢瓶瓶阀座自动焊接装置的结构、组成、工作原理及设计的主要特点。

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The regulations and methods for valve base seal test, valve seal test, valve strength test, long term valve test, fatigue test and operating torque test were summed up in this article.

汇总了塑料阀门产品要求的阀座密封试验、阀体密封试验、阀体强度试验、阀门长期试验、疲劳强度试验和操作扭矩的规定和方法。

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This article designed a displacement setting mechanism by the fixed quantity of valve model radial column piston as base pump.

以阀式径向柱塞定量泵为基泵设计了控制进油阻力的变量机构。

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