When it comes to plumbing in a van build, it's important to choose pipes that are durable, lightweight, and suitable for mobile applications. Here are some types of pipes that are commonly used in van builds for plumbing:
PEX (Cross-linked Polyethylene)
PEX pipes are an incredibly (and probably the most) popular choice for van builds due to their flexibility, light weight, and ease of installation. PEX is a type of plastic pipe that is cross-linked, making it resistant to freezing, corrosion, and scaling. It can be used for both hot and cold water applications and is compatible with a wide range of fittings, such as crimp or push-fit fittings. PEX pipes can be easily bent and routed through tight spaces, making them suitable for van builds where space may be limited. PEX pipes also have good insulating properties, which can help prevent heat loss in hot water lines. They are also known for their durability and long lifespan, making them a reliable choice for van plumbing.
Generally, PEX piping is affordable and incredibly easy to install for beginners. PEX pipes typically require fewer connections than traditional metal pipes, as they can be easily bent and routed without the need for multiple fittings. This can help reduce the chances of leaks and simplify the installation process. Further, the tools required for installing PEX pipes are generally simpler and more affordable compared to those used for metal pipes. Common tools for PEX installation include a PEX tubing cutter, a PEX crimping tool, and PEX fittings.
Further, the fittings (which are used to connect PEX pipes together and create a watertight seal) commonly used in PEX piping are well suited to beginners:
Push-fit (or press) fittings: These fittings do not require any special tools and are simply pushed onto the PEX pipe to create a secure connection. They are convenient and easy to install but may be more expensive than crimp or clamp fittings. An example of these would be SharkBite fittings, but common hardware brands will vary by region. Push-fit fittings are some of the most common used for van builds because they’re incredibly durable, unlikely to leak and easy to install.
Crimp fittings: These fittings require a PEX crimping tool to create a secure connection. The crimping tool compresses a copper or stainless steel crimp ring around the PEX pipe and fitting, creating a tight seal.
Clamp (or cinch) fittings: These fittings use a stainless steel ring and a cinching tool to secure the PEX pipe to the fitting. The cinch tool tightens the ring around the pipe and fitting, creating a reliable connection.
PVC (Polyvinyl Chloride)
PVC pipes are commonly used in van builds - often in the drain and waste systems due to their affordability and ease of installation. PVC is a rigid plastic pipe that is available in various sizes and can be easily cut and joined using PVC solvent cement or mechanical fittings. PVC pipes are lightweight and resistant to corrosion, but they are typically not suitable for carrying potable water due to the risk of chemicals leaching into the water. Therefore, PVC pipes are typically used for non-potable water applications, such as draining sinks, showers, and toilets in van builds.
Flexible hoses
Flexible hoses, such as braided stainless steel hoses, are commonly used in van builds as a supplement to standard PVC or PEX tubing - typically for connecting fixtures, faucets, and appliances or in places where extreme bends are necessary. Flexible hoses are made of durable materials, such as stainless steel or reinforced plastic, and are designed to be flexible and easy to bend, making them suitable for tight spaces and mobile applications. Flexible hoses often come with standard fittings, such as compression or threaded fittings, which can be easily connected to fixtures and appliances. Flexible hoses are typically used for short runs of water supply or for connecting fixtures that require flexibility, such as faucets, showers, and appliances like water heaters. The four core types of flexible hoses are PVC, braided nylon, polymer-coated and stainless steel braided. Flexible hoses are typically not used throughout an entire van build (as they can be more expensive) but are a key complement in many builds for tight areas or custom needs.
ABS (Acrylonitrile Butadiene Styrene)
ABS pipes are another option for drain and waste systems in van builds, used occasionally but less common than PEX or PVC. ABS is a type of plastic pipe that is similar to PVC in terms of affordability and ease of installation. ABS pipes are known for their impact resistance, making them suitable for mobile applications where vibrations and movements may occur during transit. ABS pipes can be joined using solvent cement or mechanical fittings and are commonly used for non-potable water applications, such as draining sinks, showers, and toilets in van builds.
Copper
Copper pipes are a traditional choice for plumbing due to their durability and resistance to corrosion, but used less commonly relative to PEX, PVC or ABS in van builds. Copper pipes can be used for both hot and cold water applications and are known for their long lifespan. However, copper pipes can be heavier and more difficult to install compared to plastic pipes, which may be a consideration in a van build where weight and space are important factors. Copper pipes are typically joined using soldering or compression fittings, which may require specialized tools and skills. Copper pipes are occasionally used in van builds for potable water lines, such as supplying water to sinks, showers, and faucets.
What is the best type of pipe to use in a van build?
The best type of pipe for a van build depends on various factors such as your specific plumbing needs, available space, weight considerations, installation skills, and budget. While PEX, PVC and flexible hoses (differing materials) are all incredibly common, they are often used in complement for different sections of the water system. Most builds commonly rely on PEX, but you may find scenarios where other types of pipes can play an important role.