Glossary of Restaurant Equipment Parts - W to Z
This is a collection of terms commonly used in describing restaurant equipment parts and components.
Warmers are essential components in the operation of foodservice equipment. Warmers may be very simple water baths or heat lamps, or very complex electrical or gas combustion systems dedicated to keeping food warm and within accepted food safety specifications. Examples are steam tables, holding and proofing cabinets and heated wells and merchandisers.
A washarm (wash arm) or sprayarm (spray arm) is a part of a washing or cleaning system within a piece of equipment or assembly containing a series of spray nozzles that facilitate a forced dispersion of liquid into a spray. The arms typically rotate or spin to allow optimal coverage and multiple arms may work in tandem.
A water filter removes impurities by lowering contamination of water using a fine physical barrier such as a screen and charcoal combination. Filters cleanse water to different extents for purposes such as providing beverages, ice production, and proper equipment performance.
Metal fabrication (weldment) is the creation of metal structures by cutting, bending and assembling processes. It is a value-added process involving the creation of machines, parts, and structures from various raw materials.
A well pan is used in commercial foodservice equipment for hot and cold food holding. The pans may be heated simply by pouring hot water into the equipment well or similarly cooled by using ice. The pan is then immersed in the water or ice. More complex wells may be heated with gas or electric components or they may contain an internal refrigeration system.
A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring (Belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Spring washers, which have axial flexibility are used to prevent fastening or loosening due to vibrations. Locking (lock) washers prevent fastening or loosening by preventing unscrewing rotation of the fastening device.
A waveguide is a structure that guides waves (for example, microwaves in a microwave oven or electromagnetic waves or sound waves) with minimal loss of energy by restricting the transmission of energy to one direction. Without the physical constraint of a waveguide, wave amplitudes decrease according to the inverse square law as they expand into three dimensional space.
A wiper is a device on a machine consisting of a squeegee or blade on a mechanical arm for wiping or clearing. Wipers are commonly used in ice machines, mixers, blenders, breading machines, cutting equipment and dish washing machines. A wiper may also be a manual device with a handle serving a similar purpose.
Also known as a wire harness, cable assembly, wiring assembly or wiring loom, is an assembly of electrical cables or wires which transmit signals or electrical power. The cables are bound together by a durable material such as rubber, vinyl, electrical tape, conduit, a weave of extruded string, or a combination thereof.
A worm drive or worm assembly is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm gear (which is similar in appearance to a spur gear). The two elements are also called the worm screw and worm wheel. The terminology is often confused by imprecise use of the term worm gear to refer to the worm, the worm gear, or the worm drive as a unit. Like other gear arrangements, a worm drive can reduce rotational speed or transmit higher torque. A worm is an example of a screw, one of the six simple machines. One of the major advantages of worm gear drive units are that they can transfer motion in 90 degrees. This differs greatly from a warp drive.