What Are The Parts Of A Faucet Called?

When it comes to understanding the inner workings of a faucet, knowing the names and functions of each part is essential.

A faucet is a combination of several crucial components, each serving a specific purpose, ensuring not only a seamless water flow but also temperature control, pressure regulation, and even water conservation.

You might be surprised to learn that the simple turn of a handle can activate a well-coordinated system of interconnected pieces working together to bring you clean, flowing water.

Throughout this article, we will dissect the inner parts of a faucet, and you will be introduced to essential components such as the handles, spout, aerator, cartridge or valves, and supply lines, as well as many other smaller parts.

By gaining a clearer understanding of how each part functions, you’ll be better equipped to troubleshoot issues and maintain your faucet system more effectively.

Faucet Components

Faucet Components


Valves are an essential component of any faucet, as they control the flow of water. There are several types of valves, including ball, ceramic disk, and compression valves. Ball valves use a rotating ball with holes that align with the water flow when the handle is turned.

Ceramic disk valves have two ceramic disks that slide against each other to regulate the water flow. Compression valves use a rubber washer that tightens against a valve seat to control the flow of water.


Faucet handles allow users to control the flow and temperature of the water. They come in various shapes and sizes, such as lever, cross, and knob. Lever handles are the most common type, as they allow for easy operation with minimal effort.

Cross handles have an “X” shape, providing a vintage appearance, while knob handles are round and require users to turn them for adjusting water flow and temperature.


The spout is the part of the faucet where the water flows out. Spouts come in different designs and lengths to accommodate various sink styles and preferences.

Some common types of spouts include:

  • Gooseneck spout: This spout has a high, curved shape that provides ample space for washing and cleaning.
  • Straight spout: As the name suggests, this spout is straight and usually has a short reach.
  • Pull-out or pull-down spout: These spouts have a retractable hose that extends, allowing users to clean hard-to-reach areas or rinse larger items.


The aerator is a small device located at the end of the faucet spout. It serves two primary functions: mixing air with the water flow to reduce water consumption and shaping the water stream, making it more smooth and uniform.

Aerators come in different flow rate options to help conserve water while still providing an efficient and effective water stream.

Types and Materials

Faucet Parts

Single Handle Faucets

Single-handle faucets are a popular choice due to their simplicity and ease of use. They operate with a single lever that controls both the water temperature and flow rate.

These faucets are perfect for small sinks or compact spaces, as they take up less room than their double-handle counterparts.

Some advantages of single-handle faucets are:

  • Easy to install and maintain
  • More affordable than double-handle faucets
  • Space-saving design

Double Handle Faucets

Double-handle faucets, on the other hand, have separate handles or knobs for the hot and cold water. This allows more precise control over the water temperature and flow.

They can be found in a variety of styles and materials, making them a versatile option for any kitchen or bathroom design.

Key points of double handle faucets include:

  • Precise control of water temperature and flow
  • A wide range of styles and materials available
  • Requires more space compared to single-handle faucets


Brass is a popular material for faucets due to its durability and corrosion resistance. It has a warm, golden hue that brings a touch of elegance to any kitchen or bathroom.

Brass faucets can be polished for a shiny finish or left untreated for a more rustic, antique look.

Some benefits of brass faucets are:

  • Long-lasting and corrosion-resistant
  • Elegant appearance
  • Easy to clean and maintain

Stainless Steel

Stainless steel is another popular choice for faucets. Known for its strength and resistance to rust, stainless steel also adds a sleek, modern appearance to your kitchen or bathroom. It’s easy to maintain, as it doesn’t require any special care to keep its finish looking pristine.

Advantages of stainless steel faucets include:

  • Durable and rust-resistant
  • Modern and stylish design
  • Low maintenance requirements

Working Mechanism

Ceramic Disc Valve

Ceramic disc valves are innovative and widely used in modern faucets. They consist of two ceramic discs that rotate against each other to control the flow of water. The discs have holes in them, which align when you turn the faucet on, allowing water to pass through.

When the holes are misaligned, the water flow is blocked, and the faucet is turned off.

Ceramic disc valves are known for their durability and low maintenance requirements due to the hard and smooth nature of the ceramic material. This type of valve also provides accurate temperature control, and it is less likely to develop leaks or drips compared to traditional compression valves.

Cartridge Valve

Another common type of faucet valve is the cartridge valve. This valve features a cylindrical cartridge with holes and channels that control the water flow and temperature. The cartridge is often made of metal, plastic, or a combination of both materials.

To operate a cartridge valve, you simply move the handle, which in turn moves the cartridge within the faucet body. This movement aligns the holes and channels to allow water to flow through.

A single-handle faucet typically uses a cartridge valve, where moving the handle up and down controls the water flow, and moving it left or right adjusts the temperature.

Cartridge valves offer easy maintenance and can be replaced quickly if needed. They are known to be reliable and long-lasting, providing a smooth and consistent performance in faucet operation.

Installation and Design

Deck Mount

Deck mount faucets are mounted directly on the sink or countertop, typically with 3 holes for the faucet’s components. They are easy to install and come in a variety of styles to accommodate different sinks and d├ęcor preferences. Installation involves securing the faucet to the countertop by tightening the nuts underneath.

Deck mount faucets are known for their:

  • Simplicity: straightforward installation process makes it a popular choice
  • Versatility: wide range of styles available to match any kitchen theme

Bridge Design

The bridge design features a faucet with two handles and a spout connected by an elevated horizontal bar, forming a bridge-like structure. This design adds a vintage look to your kitchen and is often found in farmhouse or traditional style kitchens.

Some benefits of bridge design faucets include:

  • Aesthetic appeal: elegant and classic look that enhances your kitchen’s style
  • Ease of use: separate handles for hot and cold water allow for precise temperature control

Gooseneck Spout

Gooseneck spouts, characterized by their high, arching design, provide ample space for filling large pots and cleaning bulky items. These spouts come in various styles, ranging from sleek and modern to classic and ornate.

When choosing a gooseneck spout, consider these points:

  • Height: ensure it’s tall enough for your needs but doesn’t impede daily tasks
  • Reach: pay attention to the spout’s reach, ensuring it extends far enough into the sink without causing splashing
  • Swivel: some gooseneck spouts offer a swivel feature, allowing you to move the spout out of the way when needed

Faucet Maintenance and Repairs

Leaky Faucet

Leaky Faucet Repair

One common issue with faucets is a leak. To repair a leaky faucet, first, identify the cause. It can often be attributed to a damaged washer or o-ring. Start by turning off the water supply, then disassemble the faucet to inspect and replace the washer or o-ring as needed.

  • Damaged washer: If the washer is damaged, remove it and replace it with a new one of the correct size.
  • Worn-out o-ring: Similarly, if you find that the o-ring is worn out or damaged, replace it with a new one that fits properly.

Remember to reassemble the faucet correctly after making any necessary repairs.

Cleaning and Replacing Parts

To ensure the longevity and smooth functioning of your faucet, it’s essential to clean and replace parts periodically. This includes the gaskets and other components that could accumulate dirt or become worn over time.

A typical maintenance routine might involve the following steps:

  1. Disassemble the faucet: Turn off the water supply and carefully disassemble the faucet. Keep track of all the components and their order.
  2. Clean the components: Soak the parts in a cleaning solution and use a toothbrush or other small brush to thoroughly clean each component, paying particular attention to any crevices or difficult-to-reach areas.
  3. Inspect and replace: Check all parts for wear or damage. Replace any damaged components (such as gaskets, washers, or o-rings) as needed.
  4. Reassemble the faucet: Carefully reassemble the faucet, ensuring that each component is correctly placed and properly tightened.


In summary, the various parts of a faucet primarily include the handle, cartridge, spout, aerator, and supply lines.

Each component plays a crucial role in the overall functioning of the faucet, contributing to an efficient and comfortable user experience. Familiarizing yourself with these parts can prove beneficial for basic troubleshooting and maintenance.

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