Why is high strength pipe holding clamp Better?

The complete guide to pipe clamps

What are pipe clamps?

Pipe clamps, or Piping clamps, are best defined as the support mechanism for suspended pipes, whether that be horizontal overhead or vertical, adjacent to a surface. They are vital in ensuring all pipes are fixed securely while also allowing for any pipe movement or expansion that may occur.

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Pipe clamps come in many variations as the requirements for pipe fixing can range from simple anchoring in place, to more complex scenarios involving pipe movement or heavy loads. It is essential that the right pipe clamp is used to ensure the integrity of the installation. Pipe fixing failure can cause significant and costly damage to a building so it is important to get it right.

The main types of pipe clamps

Standard pipe clamps

Standard clamps are typically fixed using two screws &#; one on either side of the clamp. They can be lined or unlined, depending on the application and there tends to be a wide range of sizes to choose from.

These clamps have evolved and Walraven now offers a single screw pipe clamp with a quick-locking system that is fixed in place simply by pushing the clamp together by hand.

Best for straight-forward installations of metal or plastic pipes.

Standard pipe clamps &#;

Traditional pipe clamps

Traditional clamps include U Bolts and Saddle Clamps, most commonly used to hold steel or copper pipes. They have no internal lining so are best suited to pipes where there are no additional variables to be considered such as temperature or noise insulation.

Best for large diameter steel and copper pipes where a basic, traditional bracket is preferred and there are no special requirements for rubber lining.

Saddle clamps &#;

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Plastic pipe clamps

Plastic clamps are mainly used on plastic pipes or domestic copper pipes. They are perfect for light loads and smaller diameter pipes. They are also great for jobs where lots of clamps are required due to their quick installation time.

Plastic clamps, such as the Walraven starQuick®, are now being manufactured for ultra-fast installation. You can simply fix the pipe in place without any additional fixings.

Best for sanitary, heating and electrical installations as well as corrosive environments.

Plastic pipe clamps &#;

Heavy duty pipe clamps

Heavy duty clamps have a high safe working load, so are designed for use where a heavy load support is required. They can be used indoors and outdoors and are available both with and without lining. They have modern features to make them easier to fit than traditional clamps. Take a look at how our heavy duty pipe supports were used to secure district heating pipes to the underside of a bridge.

Best for safe fixing of heavy load pipework indoors or outdoors.

Heavy duty pipe clamps &#;

How do pipe clamps work?

In most instances, pipe clamps work by fixing securely around the pipe and suspending it from a surface or rail system. They simply lock around the pipe to clamp it in place so that it is secure. Since there are many different types of pipe clamp, however, you will find that they can work slightly differently.

• Standard clamps work by securing two screws in place, one on either side of the clamp. More state of the art versions of standard clamps can include single screw pipe clamps for faster fixing and more advanced two screw clamps that have additional features such as anti-loss washers and captive locking nuts and screws.
• Saddle clamps work by fixing over the top of half of the pipe, whilst the other half sits on a flat surface.
• Plastic clamps can work in different ways. In the case of the Walraven starQuick®, it is usually fixed to the wall with a screw or plug and you simply push the pipe into the clamp and it will close on itself for ultra-fast and secure fixing.
• Pipe hangers or U Bolts allow the pipe to sit into the bottom section of the clamp. The hanger is typically fixed at the top to a piece of strut.

We make it easy to use pipe clamps

When looking for a simple and fast pipe clamp installation, a single screw clamp is the answer. The Walraven BISMAT Flash is a unique, state of the art product that requires no tools to fix the clamp in place. You simply use one finger to push the screw and lock it in place. The Walraven BISMAT Flash is particularly useful when fixing long runs of pipe as you can save up to 40% fixing time.

The images below show you just how easy the Flash is to use.

Which pipe clamps are the best?

When it comes to selecting the best piping clamp for a job, there is no &#;one size fits all&#; solution. In fact, selecting the best fixings depends on each unique installation environment and application requirements.

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 take into account the pipe movement due to temperature changes, the installation could fail and cause damage to the building.

Before you can select the right clamps to deal with 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, which means you need to select a clamp which is suitable for supporting the load required.

As an example, you may require special heavy duty pipe clamps with a high safe working load to ensure the pipes are secured properly. These can also help you achieve maximum bracket distances between clamps as they are able to take more force.

Materials:

Pipes made from different materials will react very differently in certain scenarios. For example, there are many different types of plastic pipe (PE, PVC, PA, PP etc). Each has a different temperature resistance, and different resistance levels to chemicals such as oils, greases, acids, chlorine etc. This can affect what type of clamp should be used. For example, plastic pipes should usually be secured with a lined metal clamp or plastic clamp. An unlined metal clamp can lead to corrosion if used on a plastic pipe.

Then there are different types of metal pipe &#; steel, iron, copper and so on. This can determine what kind of pipe clamp can be used, for example, stainless steel pipe clamps cannot be used to fix a copper pipe as the two metals will react. So a nylon coated or plastic clamp must be used.

Size:

The size of the pipe will influence the type of clamp you need, since all clamps will only be available in certain minimum and maximum diameters. For example, single screw clamps often have a more limited size range as they have to hinge open on one side, so are suited to smaller pipes.

Larger pipes will often need two screw clamps, traditional fixings or heavy duty clamps which are manufactured to suit larger sizes and heavier loads.

Environment:

The environment into which your pipe clamp will be installed can affect the type of clamp you should use. For example, if the installation is external and exposed to the weather, this is an important consideration and will more than likely require a pipe clamp with a special coating for corrosion resistance. Many of our standard pipe fixings are available with our special corrosion resistant coating Walraven BIS Ultraprotect for outdoor use.

If you are installing within a chemical environment or wet environment like a swimming pool, you may require a special kind of plastic clamp such as our Walraven starQuick.

Special requirements:

Some construction projects can have special requirements such as noise insulation or fast installation needs. In these cases, there are specialist clamps that can be used.

For example, if the requirement is to install the pipe clamps as quickly as possible, a one screw clamp that requires no tools would be better than a two screw clamp.

For noise insulation, pipe clamps with rubber lining will provide soundproofing. Many of Walraven lined clamps have certified levels of sound insulation. Find out more about soundproofing your installation.

What size pipe clamp do you need?

To determine what size pipe clamp you need, the most obvious thing you need to take into account is the size of the pipe. This is usually measured in NB (Nominal Bore) or O/D (Outer Diameter). This will determine the diameter of the pipe clamp that you require. See our handy chart below for converting NB pipe sizes.

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Secondly, you need to consider whether you are installing the clamp over insulation such as phenolic or wood block, as this will increase the diameter of the clamp you require.

At Walraven, we have a huge range of adjustable pipe clamps that fit 99% of known pipe sizes, including clamps suitable to install over insulation. The smallest clamp in our range is 12mm, the largest is mm. Even if your pipe is outside of these sizes we can manufacture custom pipe clamps. Get in touch with us to see how we can help your next pipe clamps project.

Conversion chart for NB pipe sizes

We have created a useful chart to help you convert standard pipe sizes from NB to O/D. This will help ensure you purchase the right size clamp for your pipe. The chart covers standard pipe sizes for steel and copper pipe.

You can get your copy by clicking the image below.

Pipe clamps with rubber lining

Some applications require pipe clamps to have a rubber lining. This is often a requirement due to the material or temperature of the pipe. Lined clamps also offer noise insulating properties. There are three main types of lined pipe clamps.

Black lined clamps:

The black, EPDM rubber lined clamps are suitable for steel pipes. This is because they have a series of ribs on the inside of the lining that grips the pipe so that they cannot move. They anchor the pipe securely. If required, pipe movement can be dealt with via fixing accessories such as ball swivels or expansion devices.

Green lined clamps:

Green, EPDM rubber lined clamps are specially made for plastic pipes. They are finished with a smooth surface, making it easy for plastic pipes to slide within them. This prevents any fixings being forced out of place.

Red lined clamps:

Red, silicone rubber lined clamps are used in extreme environments. The red lining on these clamps is made from silicone that is heat resistant up to 200°C, making it perfect for very hot pipes.

Top tip &#; storing pipe clamps

The storage environment for pipe clamps only rarely has an impact, especially if you are able to store them in dry, stable conditions. You should be careful, however, if you store clamps with EPDM linings in a location with temperature variations. Lined clamps have been known to become brittle at very low temperatures and can melt at very high temperatures. So it is best to avoid temperature extremes.

It&#;s always best practice to check the documentation on the recommended storage conditions for the clamps you&#;re using. Again, do talk to us if you have any concerns.

What are the advantages of Walraven&#;s pipe clamps?

Extensive range of clamps

We have a vast range of pipe clamps and brackets for fixing pipework, that covers 99% of all known pipe sizes and pipe types. Even on the rare occasions when you have a pipe that our standard clamp range doesn&#;t cover, we can often manufacture bespoke clamps for your project.

We have technical calculation and design tools

As a global company, we have invested in state of the art technology which allows us to be as accurate as possible when making calculations and designing effective piping clamp installations for our customers.

100% quality control
Unlike some other pipe clamp manufacturers, all of our pipe fixings are manufactured within our factories at Walraven. We don&#;t outsource anything, and so we control the manufacturing process from start to finish. This means we have 100% control over the quality of our products at all times.

We offer full project support

We recognise that sourcing and specifying pipe clamps can sometimes be complex. Our team of Technical Support Advisers provide a FREE project support service to our customers including consultation and problem-solving.

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High levels of corrosion resistance

Corrosive environments are graded from C1 (low levels of corrosion in the environment) to C5 (highest levels of corrosion expected). Walraven manufacture pipe clamps and fixings that are suitable for use in C1-C4 environments.

Products to deal with pipe movement

Our pipe clamps and associated fixings such as slide guides, expansion devices and fixing points can be used to ensure that pipe movement can be dealt with effectively, removing the risk of installation failure due to thermal expansion.

Extreme testing

We go above and beyond when testing our pipe fixings. Not only do we test to RAL approved standards, in-house we test our clamps to destruction, so we know exactly how good they are!

We can provide the entire pipe fixing system from anchor to clamp!

We can provide much more than just clamps for pipes, we manufacture every component you need for the complete pipe support system. From anchors to rails/strut and all the additional accessories required are all available from us. We can even prefabricate entire systems, eliminating hours of installation time.

The use of piping clamps in industrial applications is essential to ensure the stability and safety of pipes. They prevent undesirable movement and reduce the risk of leaks and damage. However, choosing the most suitable ones can be complicated, as there are different types, sizes and materials available on the market.

What are piping clamps?

Pipe clamps are used to hold and support pipes of various materials and sizes, whether vertical or horizontal, or attached to a wall or ceiling. They are designed to prevent pipes from slipping or loosening, providing stability and support in plumbing installations, piping systems and other projects involving pipes.

They are usually made of durable materials such as steel, aluminum or plastic and can be adjusted and fastened by means of screws, nuts or straps. Clamps usually have three distinct parts: the clamping band, the housing and the tightening screw.

Types and uses of clamps for industrial use

Clamps can be used to support pipes of very different characteristics. For this reason, there are many different types. In general, based on their holding power, we can classify them into:

Low-pressure clamps

These are usually the most economical and the simplest, and also have the least grasping strength. Because of this, they need to be checked and replaced on a regular basis to avoid breakage or problems. Therefore, they are not very common in industry.

Medium-pressure clamps

These are some of the most common clamps on the market and perhaps what one could think of as the classic clamp. One of the most common is usually called a tape or strap clamp, with a flexible metal band with multiple perforations which exerts pressure on the pipe. It holds the pipes in place more strongly than a low-pressure clamp.

High-pressure clamps

These are the strongest and safest clamps. They have a design that makes it possible to disassemble and move them without unduly manipulating the pipe. In this category we find Supra clamps, which have strong, easy-to-tighten hexagonal screws, and the pressure they exert is distributed evenly over the surface of the piece they are holding. For these reasons, they are the most widely used in industry, since they provide a tight hold that prevents breakage, leaks and slippage.

What factors should be taken into account when choosing a clamp?

Once the types of clamps are classified according to their holding strength, and high-pressure clamps are chosen as the most suitable for industry, it is essential to consider a number of factors before choosing a particular model.

Maximum load

Clamps undergo load safety tests to determine the maximum loads they can carry. It is important to keep these in mind and choose the right one &#; otherwise the part may not hold firmly, causing problems that could become serious.

Temperature

The temperature of the fluids circulating through the pipes can dilate them, so this factor needs to be considered before choosing a particular clamp. The temperatures they can withstand normally run in the range of &#;30° to 120°C.

Size

The size of the clamp must be appropriate to the diameter of the pipe. Also, depending on the liquid circulating inside the pipe and its temperature, the pipe will expand more or less. The clamp has to allow the pipe to slide without breaking due to excessive pressure.

Piping material

Pipes can be made of many different materials, each with its own specific resistance to heat, chemicals and environmental conditions. For this reason, pipe composition is an important consideration before choosing one clamp or another, as there are different ones suitable for plastic versus copper pipes, for example.

Environment

Installing a clamp in an indoor environment is not the same as installing it in an outdoor environment &#; the conditions of use are quite different. For example, for an outdoor environment, it would be necessary to opt for a piece that resists corrosion.

Special requirements

Special requirements may also exist, such as the need for quick installation and removal, or sound insulation. For example, there are coated, double-threaded clamps that are suitable for sound insulation.

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