The article introduces the characteristic and demand of LPG carrier tanker safetyvalve, and discusses emphatically the design, making and debug for lead-down springsafetyvalve and its structure.
本文介绍了液化石油气汽车罐车安全阀的特点与要求，着重讨论了下导式弹簧安全阀的设计、制造和调试。
2
The reason for abnormal leakage of general spring direct acting safetyvalve is analyzed and the method for overcome this abnormal leakage is proposed.
分析了一般弹簧直接作用式安全阀非正常泄漏的原因，提出了克服其非正常泄漏的方法。
3
From spring rigidity and range of set pressure, spring optimize design to same diameter's safetyvalve at set pressure near blow-down pressure are discussed.