A: For a valve, not only to install and maintain, but also will operate the valve operation to precautions include:

More than 1,200 ℃ high temperature valves, as in normal installation, and after normal use, temperature, thermal expansion bolts, the gap increased, so must be tightened again, called "hot tight", the operator should pay attention to this work , or prone to leakage. 2, when the weather is cold, close the valve to stop the long-term, water valve should be excluded. After steam steam stop valve, but also exclude condensate. Valve end like plugs, it can be open drain.

3, non-metal valves, some hard and brittle, some low intensity, operation, opening and closing force can not be too much, especially not to Meng Jin. Also note that to avoid objects bump.

4, when the new valve used filler not too tight, so as not to leak for the degree, in order to avoid too much pressure on the stem, accelerate wear and tear, but the opening and closing strenuous.

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