If you
spot some you can use a wire brush to scrape the rust off of the metal.
It is also a great idea to paint the steel

gate valve with paint that
protects metal against rust. You need to remove the rust before you
paint it though as the rust can

continue to spread.
A good way to keep one of these valves working efficiently is to use it.
All you need to do is turn the knob

to the left to close the valve and
then to the right to open the valve. Doing this occasionally will
prevent the valve from

sticking inside the pipe as well as keeping the
wheel loose.
The steel gate valve is assembled with a series of nuts which attach

the
valve to the pipes and the wheel knob to the post. Use an adjustable
wrench to tighten all the nuts to the right every year

or so. This helps
to maintain the pressure when the valve has to be used.
Yes, but believe it are not there is a flow direction on them. So look
for the arrow pointing the direction of flow.If you want to adjust the
amount of flow use a globe valve.
Generally it is better to use fully open or fully closed condition.

its a quarter turn family relief valve taking less time and little space.
Please take care of insulation also.

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