A kilometer-long pipeline in the desert doesn’t fail for anyone’s lack of attention to a weld. It is more often that it fails at the quiet spot where the pipe is laying on a surface that wasn’t designed to support it properly. Precast concrete pipe saddles are the answer to that. If you’re looking to get them from a supplier in the UAE, then here’s everything you need to know before you make your call.
What a Pipe Saddle Really Is Precast Concrete Pipe Saddle Suppliers in UAE
A pipe saddle is a curved, concrete cradle that is engineered to curve at the same radius as the pipe so that it supports the pipe below instead of on a flat surface and at certain points of contact. Typical engineering discussions in the field about pipe manifold supports tend to refer to a saddle that will come into contact with the pipe near the 8 o’clock and 4 o’clock positions, thus spreading the load of the support over the entire pipe thickness rather than focusing the load at a single point.
The curve in this contact is more significant than it seems. A flat surface under a round pipe is a pinch point, that’s where cracks and stress fractures begin. An appropriately sized saddle will eliminate that issue due to the way the pipe was designed to carry the weight.
Saddle vs Sleeper – A Quick Difference Precast Concrete Pipe Saddle Suppliers in UAE
The terms “pipe saddle” and “pipe sleeper” are often confused, but they are not synonymous. The broader support block underneath the pipeline is called a sleeper, and a curved piece of cradle that hugs the pipe and matches the pipe’s diameter is a saddle.
Many precast concrete Pipe Saddle Suppliers in UAE supports merge both functions: sleeper base and saddle-shaped top surface. When your project specification includes a particular term, this helps you know that you aren’t asking for something that isn’t being supplied.
Why Precast Concrete Pipe Saddle Suppliers in UAE is Better than Site Built Alternatives
While formwork and cast-in-place concrete construction is technically possible, it is not the most preferred method for constructing saddles. In reality, all those reasons that apply to all precast concrete infrastructure projects come into play with most contractors in the UAE who choose to adopt precast.In practice, most contractors in the UAE look towards precast for all the reasons that support precast projects throughout most precast concrete infrastructure projects – speed, consistency, reduced site risk.
Precast pipe supports reduce the time spent in the field, save from curing delays and weather delays of concrete pouring, and arrive ready for installation. That difference can quickly accumulate for a project that is distributed among pumping stations, treatment plants, or a long pipeline corridor, and when dozens or hundreds of support points must be accomplished in a tight schedule.
The Most Important Structural Features That Make a Good Saddle from a Weak One
There are not all precast saddles on the market that are designed in exactly the same way, and several details will let you know if a supplier understands the product.
- Thickness adjusted by Pipe Diameter. The thickness of the saddle is usually about twice the diameter of the pipe it is to support and will vary from approximately 6” to 12” depending on load and pipe diameter. Don’t expect a supplier to be “engineering” a product if they do not give you a single thickness by pipe diameter.
- Reinforcement spacing. Reinforcement bar is laid in at predetermined intervals throughout the body of the saddle (typically about 6 inches apart) and is always covered with concrete to keep the steel from corroding. Saddles supporting heavier loads, or larger diameters, will usually require thicker strength, rather than just thicker concrete.
- Non-shrink grout detailing. Many saddles require that a layer of non-shrink grout exists between the pipe and the concrete cradle and that there are no gaps where stress can be concentrated. This is a typical mistake done by users, which will manifest later on as load imbalance.
- Protective lining. In some designs, a protective layer (such as roofing felt) is placed between the pipe and the concrete during the casting, which softens the contact between them during service, and also protects them from abrasion.
- Edge treatment. Corners on a saddle are usually beveled to decrease the risk of chipping when moving and hooking up.
The UAE Infrastructure Team Focused on Applications.The UAE Infrastructure Team Worked on “Applications”
Pipe saddles are revealed wherever a pipeline requires a curved surface to provide stable support instead of flat surface contact. That’s also the case for pumping stations, where big-diameter manifolds with multiple feeder pipes require special saddle supports between these connections. It also contains water treatment plants, oil and gas processing plants, and any pipeline corridor above ground that is supported, controlled, and maintained for a long distance in order to avoid sagging and misalignment.
In fact, the UAE has a number of utility companies such as Abu Dhabi Sewerage Services Company (ADSSC) who have all defined detailed specifications for precast concrete for this type of infrastructure. This saves you the hassle of the delay in submittal later in the project by a supplier who is not familiar with these specifications.
What to Ask a Precast Concrete Pipe Saddle Suppliers in UAE
If you ask some direct questions, you can determine whether this is a true manufacturer or someone who is selling off generic stock without engineering.
- Will they be able to fit the saddle to your pipe and loading? The diameters of pipes and the loading are quite different for different projects. If a supplier asks you what pipe specifications you’re looking for before providing a quote, they’re doing the job right.
- What is the spacing of reinforcement and the cover for concrete for them? This is a particular fact that is verifiable. Any supplier that can answer exactly, rather than by pointing vaguely at a ‘reinforced concrete’ is most likely working from actual engineering drawings.
- Are there no details of non-shrink grout or lining in the design? If grouted or lined contact between pipe and saddle is required in the project spec, verify that the supplier can do this at the time of casting, not as an afterthought that is done on site.
- Do they know the local specifications for utilities? Suppliers who are familiar with the approval and submittal process of UAE authorities, like ADSSC precast concrete specifications, are more likely to get through approvals and submittals quicker than those who are not.
- Are they capable of multi-point support layouts of large manifolds? Pumping stations of this size (typically large) will require many saddles to be set carefully on a manifold having multiple pipe connections. Ensure that the supplier is able to provide a coordinated layout, rather than units being sent out without any context.
Here Are Some Mistakes to Avoid and Common Knowledge to Keep in Mind
Some of the same common challenges are found on pipeline support projects throughout the region. One of the more common is to order a flat top support (a “delivery sheet”) that isn’t really curved at all – this looks similar, but performs very differently under load. Another, one that often becomes apparent months after installation, is to avoid the non-shrink grout layer to speed installation.
It’s also a common mistake to simply select the lowest-cost supplier without verifying the reinforcement specification. A cheaper saddle that splits under use will ultimately cost much more than a more expensive one, considering the downtime and replacement expenses associated with the pipeline.
Bringing It Together on Precast Concrete Pipe Saddle Suppliers in UAE
Pipe saddles are one of the smallest but most important components of pipeline infrastructure that either keep a pipeline stable for decades or cause slow, costly issues within a few years. Precast concrete is the most viable solution in most of the UAE applications, as it is quicker and of higher quality than cast in place methods.
In selecting a supplier, check the one who will design the saddle for your actual pipe diameter and load, detail the reinforcement and grout correctly, and be familiar with the specifications you must meet for your local utility. If you get that right, and you get it to stay exactly where it belongs, you’re supported quietly at every point along the way.
