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An angle valve is a fluid regulating device used in plumbing and industry with input and output ports at a 90-degree angle. It can have compression fittings for copper pipes or threaded connections for steel and iron pipes. Residential plumbing systems use angle stop valves to shut off water to fixtures for repairs. Angle valves are also used in industry and utilities for various purposes.
An angle valve is a fluid regulating device used in plumbing and industry. It has input and output ports aligned at an angle to each other, the most common angle being 90 degrees. The inlet and outlet ports can be threaded for connection to galvanized steel and iron pipes, or they can have compression fittings for connection to copper pipes. When an angle valve is used as a shutoff valve for residential plumbing, it is called an angle stop valve or simply an angle stop.
There are two different valve mechanisms commonly used in angle valves. A compression mechanism has a threaded stem that squeezes a washer or ground joint against the valve seat to stop the flow of fluid or gas when the handle is turned counterclockwise. An angle ball valve, on the other hand, like a tight-fitting metal or plastic ball with a hole through it. Fluid passes through the hole when the valve is open, but when the handle is turned 90 degrees, the hole lines up perpendicular to the flow and stops.
Residential plumbing systems have several angle stops. There is usually one connected to each toilet and two to each faucet so that the water to these fixtures can be turned off in case they need to be repaired. Many residential water lines are made from copper, so the inlet port on a residential angle valve usually has a compression fitting, while the outlet ports are threaded so that you can screw on a hose leading to the fixture. The typical residential angle stop is a chrome plated metal angle ball valve with an inexpensive plastic ball and may have one or two outlet ports, depending on how many fixtures it supplies.
There are many uses for an angle valve in industry and utilities. A spring-loaded version of a kick angle valve is used for the transfer and dispensing of compressed fuels, such as liquid propane. Municipal water companies often route pressurized water through an angle valve placed in such a way that it is accessible. These companies may also install an angle check valve in their lines to prevent the backflow of contaminants into the drinking water. An angle valve can also be installed on the outlet at the bottom of a tank storing water or other fluid so that pipes can be routed vertically from the outlet to another tank or wherever needed.
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