The ball valve will never burst even in severe frosts (non-freezing valve and one trick of plumbers)
The ball valve is often used for plumbing, water meters, gas meters, etc. This is a type of shut-off valves that are popular today. There is a steel ball valve with a hole inside the valve. When you turn the knob, the ball rotates inside and gives free passage of water or gas. The tap operates in 2 positions (closed and open).
Open the tap slowly. If you do this quickly, a water hammer can occur, and as a result, disastrous consequences.
For the prevention of plumbing, it is advised to open and close the tap at least once every 2-4 months. This is necessary so that he does not get used to it.
If you don't want problems, you can buy an anti-freeze street faucet made of heavy-duty stainless steel. There are also cast iron options that are corrosion resistant.
Minus: cost. Non-freezing taps cost about 2-8 thousand rubles. If you have money, then this is a good solution to the problem.
There is one tricky way to save money and keep a regular ball valve intact.
Good advice from plumbers to prevent the ball valve from bursting
Some plumbers advise to keep the tap always for the winter. openso that it does not defrost.
But if you use water in winter, problems can happen. Why can a tap burst if it is open? It seems that all the water is glass, why does the breakage occur?
The thing is that water flows into the hole between the ball and the body. If you disassemble the ball valve, you can see it.
There is an air chamber around the balloon. Remaining water freezes around it. The sides are tight, the water has nowhere to go, and around the ball it freezes and presses on the walls. The body itself bursts due to pressure and because its walls are very thin. The same will happen with closed tap.
Exit: open the tap halfway (45 degrees). In this case, all cavities remain open.
All water will flow down from the air chamber and then the tap will never break.