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原文：
Poor water-heater performance Butterfly Valves and breakdowns or other serious problems often can be prevented through maintenance. For example, a water heater's pressure-relief valve should be checked for proper operation at least once a year. The function of the valve, on or near the top of the tank, is to allow water to escapeMud Valves from the tank if there is a dangerous buildup of temperature and pressure in the water heater. A faulty pressure-relief valve can result in an explosion of the water heater. Specific directions for checking the pressure-relief valve can be found in the owner's manual for the water heater. In general, Filters checking the valve requires lifting a small handle on the end of the valve. This ...
原文来自： http://www.highbeam.com/doc/1P2-6574526.html

Article: Fixer-Uppers Water heater needs maintenance Faulty pressure-relief valve could cause an explosion;是由上海天阀实业有限公司提供的阀门新闻，中文译文仅供参考(上海天阀实业有限公司还生产电动执行器电磁阀电站阀门眼镜阀疏水阀及不锈钢法兰电磁阀，两口两位直动式电磁阀，锻钢加长端闸，ZCF塑料王电磁阀，ZQDF-A通用电磁阀，欢迎您的选购。)
以下是参考译文：

译文：维修故障减压阀有可能引起爆炸
标准普尔热水器的性能和故障或其他严重的问题往往是可以预防的，通过维修。例如，热水器的减压阀，应检查正常运行，至少每年一次。阀门的功能上或附近的坦克顶部，是让水从罐逃离如果有一个温度和压力的危险热水器建设。阿故障减压阀可能会导致一个热水器爆炸。对检查减压阀明确的方向可以找到业主的热水器手册。一般来说，检查阀门，需要一个小处理解除对底阀。这...

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