A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.
The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction. Modern control valves may regulate pressure or flow downstream and operate on sophisticated automation systems.
Installation of water meter by a plumber
Professional installation of water meter may take a plumber. It will be able not only to assume, but also seal the counter in such a way that the reading will be error. This will allow precise determination of the amount of water used in the household and issuing the appropriate invoices, that will not in any way overpriced. At the same time plumber will be able to advise the owners of the visited household, how they can reduce the costs associated with the amount of water consumed. At the request will also be able to check whether at home, there is no leakage and no need to replace any seals. Besides a good plumber can recommend the purchase of such sanitary facilities that allow you to save water.
minor plumbing repairs done in the kitchen
Home handymen are very fond carry out the various repair work. Therefore, it happens also that alone make minor repairs or improvements hydraulic. The houses usually they exchange seals and pipes, which has already gathered a lot of dirt and hair and suds. Similarly, in flats, where sometimes you also need to fix the toilet flush. In addition, home handymen often deal with repairs washing machines standing in a bathroom or dishwashers standing in the kitchen. So they can save some money and demonstrate their efficiency in front of family. But keep in mind that the performance of such work will be possible only if equipped house there are small seals and hydraulic tools.