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PRESSURE REDUCING VALVE-IRON

A reducer changes the size of a pipe from a larger to a smaller bore (inner diameter). Alternatively, reducer may refer to any fitting which causes a change in pipe diameter. This change may be intended to meet hydraulic flow requirements of the system or adapt to existing piping of a different size. The length of the reduction is usually equal to the average of the larger and smaller pipe diameters. Although reducers are usually concentric, eccentric reducers are used as needed to maintain the top or bottom of pipe level.

Speed reducers are mechanical devices that help drive systems (motors) maintain optimal speed and torque for the application. Also known as gearboxes and gear drives, they lower the speed of rotation of the input shaft by a certain ratio and increase the power transmitted to the output shaft by the same ratio. Ratio multipliers increase the speed reduction and torque supplied by a speed reducer by a certain ratio and are suitable for parallel setups. Mounting bases, torque arms, and flange couplings are accessories used with speed reducers. They are often used in applications where the speed reducer will not be directly attached to the drive mechanism.

Valves are widely used in different restaurant equipment designs. A valve is a device that regulates, directs or controls the flow of a fluid (gases, steam, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. In an open valve, fluid flows in a direction from higher pressure to lower pressure. 

Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow, allowing control over a variety of operational requirements.