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原文：
安全阀阀瓣不能及时回座 1） 阀瓣在导向套中摩擦阻力大，间隙太小或不同轴，需进行清洗、修磨或更换部件。 2）阀瓣的开启和回座机构未调整好，应重新调整。对弹簧式安全阀，通过调整弹簧压紧力可调整其开启压力；通过调节下调节圈位置可调整其回座压力。 3） 安全阀垂直度超标，需重新找垂直。 4） 锅炉压力容器安全阀阀座密封面裂纹。当安全阀调试后从未起座的情况下，可能是雨水从排汽管进入安全阀体内与高温介质产生冷激，导致阀座密封面裂纹。建议对排汽管出口加装防雨罩。同时消除裂纹的阀座密封面，必要时更换安全阀。

“Self-pressure regulating valve used ”是由中国安全阀网提供的国际阀门新闻，译文仅供参考。另外，中国安全阀网还提供相关产品搜索： 全启式安全阀、 封闭式安全阀、 高压安全阀、 锅炉安全阀、 蒸汽安全阀、等。

译文：
Self-pressure regulating valve used Safety valve to return to the valve seat can not be 1) The valve friction in the guide sleeve in the large gap is too small or a different axis, the need for cleaning, grinding or replacement parts. 2) opening the valve and valve body does not adjust the back seat, should be re-adjusted. Of the spring-loaded safety valve, adjustable pressing force by adjusting the spring pressure to open it; by adjusting the position of the next adjustment ring to adjust the back seat pressure. 3) excessive vertical safety valve, to be re-look vertical. 4) Boiler and Pressure Vessel Safety valve seat sealing surface cracks. When the safety valve from the seat after debugging has never been the case, it may be rain water from the exhaust pipe into the valve body and the heat medium produced cold shock, leading to valve seat sealing surface cracks. Recommended the installation of the exhaust outlet rain cover. While eliminating the seat sealing surface cracks, if necessary, replace the valve.

更多新闻：

• 安全阀还不到全开状态和阀瓣振荡
• 安全阀不在调整的起座压力下动作
• 设置安全阀的四大点

原文来源：http://www.1anquanfa.com/

2011-12-27 07:29

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