When to Use Pipe mounting clamps?
Pipe Clamps - The Complete Guide | Walraven UK
Which pipe clamps are the best?
When selecting the best pipe fixings for a job, there is no "one size fits all" solution. The best fixings depend on each unique installation environment and application requirements.
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What needs to be taken into account when selecting the best pipe clamp?
Temperature:
Temperature variations can cause pipes to expand and contract. If the correct fixings and clamps are not used to account for pipe movement due to temperature changes, the installation could fail, potentially causing damage to the building.
To select the right clamps for thermal expansion, you first need to calculate the level of thermal expansion on the pipework.
Weight:
All pipe clamps have a maximum load-bearing capacity. You need to select a clamp that can support the required load.
For example, you may need special heavy-duty pipe clamps with a high safe working load to ensure the pipes are secured properly. These can also help achieve maximum bracket distances between clamps as they can handle more force.
Materials:
Pipes made from different materials react differently in various scenarios. For example, various types of plastic pipes (PE, PVC, PA, PP, etc.) each have different temperature resistances and resistance levels to chemicals such as oils, greases, acids, and chlorine. This variability affects the type of clamp needed. Typically, plastic pipes should be secured with a lined metal clamp or a plastic clamp. An unlined metal clamp can cause corrosion if used on a plastic pipe.
Different types of metal pipes, such as steel, iron, and copper, also determine what kind of pipe clamp can be used. For instance, stainless steel pipe clamps cannot be used to fix a copper pipe as the two metals will react. A nylon-coated or plastic clamp should be used instead.
A Guide to Pipe Clamps
Pipe clamps, also known as pipe clips, are typically used in plumbing, heating, drainage, and electrical applications. They come in a range of different materials. Sometimes referred to as pipe clamp brackets, they can also be part of the fixing system, such as pipe support brackets. In this article we cover:
Pipe clamps are supports for suspended pipes, whether vertical or horizontal. They should not be confused with pipe fasteners, which join two pipes together. The purpose of pipe clamps is to securely hold pipes while allowing for any movement or expansion to maximize the application’s performance.
The main pipe clamp types have their own subset of clamps. They are first affixed to a wall, ceiling, or support base before securing the pipe.
This term refers to the components that work together to support pipes. The system can include clips and clamps, pipe hangers, screws or bolts, anchors, struts, and anything else you plan to use. These components are also called pipe clamp fittings. Your system should:
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Also known as pipe screw clamps, these come in two halves and are secured with two screws or bolts on either side of the clamp. Single-screw standard clamps are also available for faster installation. Typically, standard clamps are made of steel. The single-screw variety features a rubber lining that isolates vibration and provides sound insulation. Styles can vary. Standard pipe clamp dimensions come in a wide range of sizes, ensuring you find something to fit your needs.
Metal can crack or break plastic pipes if secured too tightly, while plastic provides a softer hold. This makes plastic ideal for softer metals, such as copper plumbing. Plastic clamps and clips work well when pipes are thin and somewhat fragile, or when carrying gas or another lightweight load. With this type, the pipe is put through the clamp and the arm is closed over it. These are also typically quick-release pipe clamps.
Saddle clamp pipe supports, as shown here, half-saddle pipe clamps, and U-bolts are traditional clamps that hold steel or copper pipes. Saddles transfer the weight of the pipe to a supporting base. They are best used when issues such as vibration and insulation are not a factor. U-Bolts and other pipe clamp U types are typically used to elevate pipes and are secured to beams and ceilings.
Designed to support heavy loads, these clamps are used both indoors and outdoors. They tend to come in two parts with locking bolts. They are usually made of steel, some also lined to reduce noise and isolate sound. Other components can sometimes be used as pipe brackets and pipe hanging systems, particularly in the building and service industry.
Cable ties are ideal for fixing insulation to pipes or working in conjunction with pipe clips, but they can also support the pipes themselves with the aid of cable tie mounts. These are self-locking and easily installed by hand. They are resistant to extreme temperatures and offer great strength and durability. Another good option is strap and buckle cable ties, which have a tensile strength of 350 lbs.
The rubber profile isolates vibration and noise. The steel is zinc plated for corrosion resistance. P-clamps, typically used for hose and cable bundles, can serve as small pipe clamps to support lightweight loads. They are ideal as an electrical pipe support.
Wherever pipes are used, clamps or their alternatives are needed. One clamp can usually work across all applications. "Usually" means the diameter of the pipe and the environment where the clamp will go are essential considerations. The following table is a guide to the clamp types most commonly used for various applications:
Choosing the right clamps involves considering the material, dictated by the material of the pipe. Metals tolerate high temperatures well, but connecting different metals can cause galvanic corrosion.
For example, do not use a stainless-steel clamp on a copper pipe. Contact between these two dissimilar metals causes a reaction. There is no universal agreement as to which metal causes the corrosion, but it happens regardless.
Plastic hose clamps
Brass Pipe Clips with Stainless Steel Pipes
Or, stainless steel clips with brass pipes. We are discussing how the metals react. Some stainless steels can work with brass, depending on the grade of the stainless steel. The grades that tend to work well with brass include:
- 301
- 304
- 310
You can learn more about this topic in Understanding Stainless Steel Grades.
Brass pipe clamps add an aesthetic touch and are corrosion-resistant, making them a good choice for exposed pipes.
Stainless steel famously resists corrosion and offers excellent wear resistance. Do not use stainless steel with carbon steel, as this will cause galvanic corrosion. If you plan on using it with brass pipes, refer to the subsection above, Brass Pipe Clips with Stainless Steel Pipes.
Copper Pipe Clips
You should not use copper with stainless steels. Copper pipe clips are best used with plastic or domestic copper pipes. Like brass, copper does not corrode, making them an appealing option if aesthetics are important.
Steel Pipe Clamps
Corrosion is a fact of life, but you can slow it down. Most steel clamps are zinc plated to resist corrosion. These clamps are ideal for steel tubes, cast-iron tubes, and use with insulated pipe supports. Steel clamps have a hard grip on pipes; if you need flexibility, consider another material for your clamp. These clamps often use threaded rods, a component you can learn more about in our Guide to Threaded Rods.
Plastic Pipe Clamps
Ideal when your pipes need flexibility, as required for movement or expansion due to heat or cold. These clamps come in a range of plastics, from nylon 6/6 to PVC. PVC pipe is used globally, and a plastic clamp provides a softer grip.
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