How to put a repair clamp on a water pipe

During the operation of main water pipelines, emergencies occur. If it is necessary to restore their work in a short time, special equipment is used that helps to close the burst areas, block cracks and places damaged by corrosion. Prices for repair clamps for water supply pipes are affordable. Spare parts help to replace the damaged area without disconnecting the network. There is no need to use welding machines for installation. To install them, you only need a screwdriver of the correct size.

Types, device and technical characteristics

The range of repair parts is great. There is a classification that helps you choose the right equipment. According to the material of manufacture, the clamps are divided into products:

  • made of galvanized steel;
  • made of alloys without anti-corrosion coating;
  • cast iron;
  • made of stainless steel.

According to the type of construction, the clamp can be single-sided, double-sided, multi-piece or fastening. The one-sided has a U-shape with a hole in the upper part. It is used to repair pipes of small diameter (allowable size D / 50 mm), for threaded installation. Double-sided - a product consisting of two parts. They are connected to each other with screws. Then the fastening is additionally reinforced with staples. They provide a tight seal. Such products are selected taking into account the diameter of the pipe being repaired.

The multi-piece clamp is used for repairing large diameter pipelines. It consists of several identical parts with a honeycomb structure. When installing, threaded pairs are used.

The fixing clamp is intended for fastening the pipe to the surface. It is fixed with one screw, which is passed through the bottom of the product. First, a repair element is attached to the wall, then a pipe is inserted into it.

Criterias of choice

When choosing a clamp, it is necessary to take into account the material and diameter of the pipe, the size of the damage

When buying clamps for repair work, different parameters must be taken into account. Among them, experts identify general requirements.

  • The product must not be used if its length is less than the outer diameter of the pipe.
  • When repairing a pipeline with a diameter of more than 350 mm, it is important to use a bandage, the length of which is 150 mm longer than the damaged area.
  • For oversized structures, repairers recommend purchasing a patching product, the length of which is 200 mm longer than the length of the damaged area.
  • For the "treatment" of a polypropylene pipe, it is necessary to use clamps, the length of which is one and a half times the length of the fistula or crack.
  • If the clamp is used to join two pipes, their ends should be 10 mm apart.

It is allowed to use clamps only if the area of ​​the damaged area is no more than 60% of the clamp area. When the crack in the pipe is larger than 60% of the shroud area, it is better to use repair couplings to seal it.

It is necessary to take into account the technical conditions for the operation of the repaired object. For example, you cannot install clamps where the pressure inside the water supply system exceeds 10 atmospheres. Patching the pipe is useless in this case. Do not install clamps on a pipeline, inside which the carrier has a temperature exceeding +120 degrees. It is allowed to use the described repair equipment where the temperature of the medium is constant and it falls within the range from -20 to +60 degrees.

Clamps can be installed not only on pipelines inside which water is transported, but also on systems where inert gas or air is supplied through pipes. The crimp structure in this case must be a stainless steel strip. The thickness of the alloy must be at least 2 mm. If it is necessary to use a multi-piece clamp, experts recommend choosing models made of high-carbon steel (M 20). The use of cast iron clamps is considered acceptable.

Another selection criterion is the nature of the damage. Products with elastic gaskets are suitable for eliminating pipe fistulas. It is convenient to use a bandage with a key if you do not have a screwdriver or keys at hand. Power couplings are more suitable for repairing hoses and pumping systems. For the repair of pipelines with the maximum permissible atmospheric pressure, it is better to use clamps, in which bolts and nuts are used instead of screws when fixing the equipment.

Installation and fastening methods

The described cuffs can be used to repair vertical and horizontal pipes. On curved sections, the use of such repair equipment is undesirable. The installation process is extremely simple. The installation of the clamp on the water pipe is carried out in two stages:

  1. The base of the bandage is put on the pipe in such a way that the lock, which will fix it, stands on the opposite side from the place of the damaged area.
  2. The nuts are tightened until the collar used is completely adhered to the base body.

The quality of repair work depends on several criteria: from what material the clamp is made of, what strength it has. The area of ​​junction of the repair cuff is also of great importance. The larger the pipe defect, the greater the indicated indicator should be.

Advantages and disadvantages of repair clamps

The use of the described equipment has a number of positive aspects. It helps in the repair of minor defects. Simple and complex accidents can be eliminated as soon as possible and the costly replacement of the damaged area can be dispensed with.

Clamps are a multifunctional device. They are able to play the role of connection and the role of fastening the pipeline. Any person with minimal knowledge of the installation of a water supply system can install a clamp for repairing a water pipe. Installation takes place in a short time (just a few minutes). Fixation is carried out with bolts and nuts. A quality product lasts a long time. Choosing it for the restoration of technical units, it is possible to extend their service life by another five years.

There is only one drawback: it is allowed to mount the clamp only on straight sections, on the outside of the highway. The maximum pipe size is 340 mm. The described device is not installed on products with a larger diameter.

The price of all products is different. Its formation depends on what the described repair element is made of, what design it has, what system is used to attach it to the defective area. Simpler to manufacture couplings are cheaper than multi-piece elements. Another factor affecting pricing is the manufacturer and brand of the product.

British, German and American high carbon steel pipe clamps with anti-corrosion coating and swivel clamp cost $ 0.30 - $ 5.00. Domestic products are cheaper.

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