关于泵阀日常进行维护的基本方法（一）

当阀体和阀盖有所泄漏时，造成此现象的原因有可能是：一天冷冻裂造成的；二铸铁件铸造质量不高，阀体和阀盖体上有砂眼、松散组织、夹渣等缺陷从而造成泄漏；三当焊接不良，存在着夹渣、未焊接，应力裂纹等缺陷时也有可能致使其发生泄漏；四铸铁阀门被重物撞击后被损坏也会造成阀体和阀盖有所泄漏。

When the valve body and valve cover has been leaked, the cause of this phenomenon for two reasons may be: a day crack caused by freezing; two high-quality cast iron castings, valve bodies and valve covers have trachoma, a loose organization, slag, etc. defects resulting in leakage; three when welding bad, there is slag, no welding, stress cracks and other defects may also cause leakage of its occurrence; four cast iron valve damage after being hit by a heavy object can cause a valve body and valve cover the leak.

当发生以上几种情况时我们要相应的对其进行维护：1若是由于天气原因造成的我们可以对气温在0°和0°以下的阀门，应进行保温或拌热，停止使用的阀门应排除积水；2若是本身质量不合格的，我们更应该提高铸造质量，安装前严格按规定进行强度试验；3当面对焊接问题时，应按有关焊接操作规程进行，焊后还应进行探伤和强度试验；4对阀门上的重物应禁止推放，绝对不可以用手锤撞击铸铁和非金属阀门，大口径阀门的安装应有支架。

When the above circumstances occur when we want to maintain them accordingly: 1 if the weather causes us right temperature of 0 ° and 0 ° below the valve, should be mixed with warm or hot, to stop using the valve water should be excluded; 2 if their quality unsatisfactory, we should improve the casting quality, pre-installation in strict accordance with the provisions of strength test; 3 When faced with welding problems, operational procedures should be carried out on welding, after welding, testing should be carried out and intensity of the test; 4 on the valve on the weights should not be allowed to push put absolutely no hand-hammer impact iron and non-metallic valves, large diameter of the valve should be installed bracket.