A drain cock is a tap or valve used to regulate or draw off water from the lowest part or a tank. They are commonly found inside homes in under kitchen sinks. It is very important to know where it is in case of flooding. Drain cocks are often made of brass, sometimes with rubber seals.
Typically, a drain valve consists of a stem and a hollow, cylindrical body. The axis located within thehollow part of the body is vertical to the stem. Whenever the stem is open, the fluid or gas passes through the hollow area of the body. The stem closes the passage through the body as it is rotated, thus stopping the gas or liquid from leaving. A gate that restricts the flow is raised or lowered by the stem in certain drain valves designs, while the stem itself prevents the flow in others. Depending on the specific design, this gate could look like a disk or a ball.
Drain cocks are available in a range of sizes and fits. There are two main styles of drain cock:
The type A drain cock valves come along with a gland, which is located on the spindle. This provides much-needed assistance to stop the loss of water while it is in use.
The type B drain cocks have a similar design. However, you will not be able to find a gland in them. Due to the same reason, type B drain cock valves are highly recommended for boiler houses. That's because a small amount of water loss is not a major concern for them.
There are several uses for draining cock valves and taps. They are often used, for instance, in air compressors as well as air supply lines. The disposal of potentially dangerous condensates like water, oil, or rust is made possible via an air drain valve. These contaminants may accumulate over time and cause airline blockage or storage tank deterioration. Steel storage tanks' interiors may corrode if there is too much water in the system. On big vehicles with air braking systems, automatic air drain cockvalves are often utilized to remove oil and water that may otherwise compromise the brakes.
Hot water heaters are frequently drained of water and have contaminants removed using a hot water system drain valve. On the interior of water heaters, mineral scale made of calcium or even other minerals may develop over time. Additionally, the bottom of a tank might get clogged with sediments like sand or mud. If left unchecked, this reduces the heating effectiveness of the heating components and may ultimately result in irreparable damage. The majority of these contaminants may be removed from the hot water tank by regularly releasing the drain valve.
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