Stopcocks are are also called main plumbing valves. The length of the stopcock ranges from 25-32mm and above, breadth from 16-38mm and above, height from 20-25mm and above, diameter from 13-26mm and above, size from ½-4 inch and above. The device is manufactured using cast iron and brass. It is mainly used in cold and hold supply or heating systems.

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Detailed Description for Stopcock

A stopcock is used to entirely halt the movement of gas or liquid to a system. This device controls the movement of liquid or gas into a building's plumbing system from the main supply line. In the regions served by a local utility provider, this valve is placed outside of a building, generally in the same common location as the meter. On the basis of the service provider, this valve may be sealed to avert illegal use and tampering. An additional stopcock may be installed inside the building to allow rapid disconnection of water or gas supply in the event of an emergency in the majority of the modern systems.

Stopcock valves are a form of aligned plumbing valve with a revolving stop or plug. The plug is joined to a small handle that can turn to an open or closed position. Mainly this handle is a small, smooth, rectangular projection that needs a special tool, called a stopcock key, to build the leverage required to turn the valve on or off. When twisted clockwise, the line formed by the handle runs parallel with the main line and the service is turned on. When twisted counter-clockwise, the line of the handle is vertical to the main line and the service is detached.

Owing to the nature of plumbing systems, the native building codes in several regions need the fitting of an ancillary stopcock within the building. This ancillary stopcock is a safeguard device for the building owner in case of any mutilation to the plumbing system. These interior stopcocks generally have a diverse handle design than the outdoor stopcocks used by the utility service provider that makes them easier to use without any special key or additional tools.

As stopcocks do not need any vast type of maintenance, long use in either the on or off position can result in the plug seizing and being inoperative once the necessity for the valve arises. To evade this concern, building owners should assess the purpose of secondary stopcocks on a systematic basis. To implement this test, just spun the valve handle to temporarily connect or stop the service. In case the valve handle does not revolve easily, repairs or replacement of the valve can be essential.


The stopcock is a valve used for turn-off and on the cold water system in home. When you spun the stopcock in a clockwise way the water supply will be shut off. You can turn the water supply back on by revolving the stopcock in an anti-clockwise way.



Stopcocks are generally found in kitchen, underneath the sink unit.  However in some houses the stopcock is found in a front or back hall or in a larder unit alongside the sink unit.






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