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In some instances, specifically main control valve is really a gate type valve, the valve might not close completely. In many cases a gate valve at stvvalves repair are usually necesary. But many times other treatments are available.

A gate valve not closing completely is usually due to sediment that's built up from the body in the valve. The sediment becomes lodged between your gate that lowers, and also the inside with the valve body itself. Ball type valves usually do not suffer from this issue, while they operate on another principal when compared to a gate that raises and lowers inside from the valve body.

The typical reaction every time a gate valve won't close fully is always to exert addition force about the handle. Using force to shut a valve is totally the wrong response. Brute force could cause permanent harm to the valve as well as a loss of water supply towards the building. If sediment or vitamins are preventing the gate valve from closing fully, there can be a more sensible step one to take than brute force.

If sediment or nutrients are preventing a gate from closing completely a go should be designed to flush out the inside with the valve. The correct way to do this is to look at a faucet with a sink within the house so there is really a flow of water. Then gently and repeatedly go in and out the valve. If the handle on the valve won't turn freely then loosen the packing nut just over the valve body and around the stem on the valve. Loosening it simply one turn needs to be fine – just be sure you tighten it backup when you are done. Every time you lower the gate some sediment will break away and be flushed away by the water drainage. There is perfectly no harm or danger in how often you do this provided that no excessive force can be used. In fact, routinely frequent lowering and raising a gate valve helps it to be preserved longer than whether it is left frozen in position for long time periods.

If a gate breaks inside the closed position there is usually a way to raise it back to restore water service. By drilling a little hole close to the bottom on the valve body depending on the gate a nail or some other sharp object may be pushed in force within the gate with the gate valve.

Water will leak out utilizing being done however it will be a manageable amount. After the valve gate is pushed up simply insert a like-sized sheet metal screw in the hole to stop the river. Please note that while this may restore the river supply to your building it can be a temporary fix.