How to choose wire clamps?

Dimensions (edit)

In GOST standards, you can find a table with standards, minimum and maximum sizes of power products, differing in their configuration and the number of bolts.

Let's get acquainted with the main parameters of the devices necessary for connecting especially complex pipe options, as well as thick-walled and reinforced pipes.

MGF clamps with two bolts have diameters - 30-40 mm, 40-50 mm, 50-60 mm, 55-65 mm, 65-75 mm and 75-85 mm. These designs provide uniform grip and contraction around the pipe circumference.

Modifications from different manufacturers, depending on the purpose, also differ in diameter:

"Robust" power clamp W4 - 36-39 mm;

Peculiarities

Before talking about the features of the product, let's figure out what this element is, which is so necessary for the installation of pipelines for various purposes. The power clamp is a fastener in the form of rounded metal bands with a rubber coating on the inner part of the ring, wrapping and fixing the pipe with bolts.

Important characteristics of strength devices.

• High tensile strength of the steel plate, that is, the ability to tighten it as tightly as possible. The reliability of fixation depends on this.
• The ability of reinforced models to withstand critical mechanical loads, external and internal pressure, eliminating deformation, damage and stretching.
• The ability to attach to any surface and material, thanks to a variety of fixing parts. The manufacture of clamps in accordance with GOST standards in a specialized production virtually eliminates rejects, and therefore, malfunctioning of fasteners.
• Models of increased strength are equipped with stiffening ribs with galvanic spraying, which allows them to be used when exposed to significant negative external factors.

Power models are produced mainly from high quality steel, which makes them resistant to corrosion and applicable in harsh conditions of high pressure, vacuum, large temperature differences. Such structures are considered to be durable in operation and the most durable, including tearing.

Repair and fastening clamps: the main differences

Fasteners and repair connectors are completely different products. Each of them performs a specific function, respectively, has its own distinctive properties. The repair type clamp is a multifunctional clamp that is designed to troubleshoot the following types of problems in pipeline systems:

• longitudinal and transverse cracks;
• violation of tightness in connecting parts (fittings);
• fistulas in pipes formed due to stray currents.

Basically, for repairs, they use classic models of clamps in the form of metal plates with bent ends. It is in these places that the nuts and bolts for the screed are installed. A rubber gasket is not included with such devices, so it must be selected individually.

Some clamps have comfortable handles for fastening

Repair clamps enjoy advantages over fastening clamps. They are distinguished by simple and quick installation, are suitable for eliminating almost any malfunction, and do not require draining water for work.

What are the metal clamps for high pressure hoses

Crimp metal reinforced clamps are equally important for main pipelines as well as flexible hose lines.For such systems, either worm-type clamps or power ones are provided.

Hose clamps have a large clamping ratio

Worm Gear Hose Clamps

The worm-type fastening is a ring with a bolt and serifs, which are applied to the inner edge of the clamp. This helps the fixture to hold the connection more tightly.

You can fix the fasteners with a Phillips screwdriver

Power Clamps for High Pressure Hoses

Devices for fastening the power type in connections do an excellent job with their tasks, while there are several subspecies of them:

• strip and wire galvanized have a bolted connection as a clamp;
• reinforced hose clamps - have clamps on both sides;
• universal cast, equipped with two bolts.

Such clamps are equipped with fixing bolts and have massive spacers.

All these types of clamps are made exclusively from stainless steel. All of them are equally easy to use and relatively cheap, so some stock of such fasteners on the farm will not hurt.

We recommend watching a video review of clamps, which tells about the purpose for which this or that type is used, which of them is better to buy.

Dear users, if you still have questions on the topic of the publication, be sure to ask them. Our team will be happy to answer them as soon as possible. If you have experience using this or that crimp - share it with us.

Scope of application

Clamps are used for various construction and repair work, but they are most in demand during the installation of plumbing systems. Without fasteners of this type, it is impossible to achieve a static structure. In addition to the fixing effect, the clamp is able to ensure tightness during the elimination of small leaks. To do this, we squeeze the problem area with a gasket and apply clamps. Their uniform and tight wrap-around ensures complete leakage bridging.

The peculiarity of their design is such that they can be used on horizontal, vertical and inclined pipes. For products of this type, humidity and temperature do not matter, and the presence of a rubber gasket allows the use of clamps as grounding. An unused tapping hole can be sealed using the same clamps. Wire clamps are in demand in the automotive industry, they are used to connect fittings, they are used in the optical system and the cooling system, in those nodes where there is a movement of fluid with constant vibration. They are also used in watering systems, where the water pressure is carried out under high pressure.In addition, the wire clamp is widely used in construction, machine-tool construction, agriculture, and for domestic purposes.

Applications

Power clamps are often used for the installation and repair of pipelines in hazardous environments.

• In industrial equipment with temperatures above +300 degrees, with a pressure of more than 1000 atmospheres, in high vacuum units, casting machines. Usually these are reinforced models made of durable steel with a protective coating of at least 10 microns.
• Articulated clamps are used in pneumatic and hydraulic systems, reinforced flexible high-pressure pipes for air and water, in mining and drilling facilities.
• Crimped metal parts are in demand for large pipes, their reinforced modifications are used for main pipelines.
• Power fasteners are preferable when installing plumbing wiring, since they guarantee a long service life of the pipeline and its tightness. One-piece power modifications with a lock, in fact, represent a complete design that is not afraid of extreme loads for thick-walled, reinforced hoses and drainage pumps.
• Many fasteners are required for use in aggressive, corrosive and chemical environments: for the manufacture of agricultural vehicles - seeders, combines, hydraulic carts. These parts are used in military equipment, for fixing exhaust pipes and in car engines.
• For air systems, lightweight but durable nylon clamps are used that are resistant to moisture. These are unique models that are also in demand for fixing gas, plumbing and water pipes in apartments, country houses and at various enterprises.

Application methods

The use of a wire clamp requires several conditions to be met.

• This option is used for thick-walled elastic hoses. Long-term, cracked hoses that have lost their softness and elasticity cannot withstand the pressure of small diameter steel wires. It destroys the structure of the material, can cut through, which will lead to leakage or even breakdown.
• When using a wire clip, it is recommended to use a rubber gasket. This allows for a more even distribution of pressure, extending the life of the hose.
• Some products are initially equipped with a seal, which eliminates the need to use a gasket, ensuring the most tight fit.
• It is allowed to use this type of clamp only for fastening to solid bases - metal or plastic pipes, since at the junction of two soft-walled surfaces, the wire will simply transfer them.

The use of steel spiral wire provides the most reliable and tight connection. In addition to design differences, the clamps have different fixing methods. It depends on the purpose for which the device is used. On store shelves, you can buy products with a rigid fixation format. This type is most convenient in places where the pipeline branches and bends.

Peculiarities

The clamp is ring-shaped. It includes a tightening mechanism in the form of a bolt with a worm or metric thread. It can have a wire base or be presented as a thin metal strip. The principle of operation is a tight fit of the surface, followed by tightening and fixing. A nut with a metric thread is used in modern versions of wire clamps, its tightening capitally fixes the crimping surface on the working base. Despite its wide range of applications, its only task is the tight connection of rubber, polypropylene hoses and pipes made of solid materials.

A wire clamp will help connect the irrigation hose to the water tap, ensuring it is firmly in place, without the possibility of breakdown and allowance for leaks. Clamps not only fix smooth surfaces, but are also used in the installation of corrugated pipes, connecting such an exhaust pipe to the chimney. The wire version is an improved folk method of connecting a pipe and a hose using ordinary wire, when it is tightly wrapped around the hose with pliers, fixing it tightly. The modern version has a galvanized steel helix with two threads at the ends of which are threaded. The ends are connected with a tightening nut and a lock.

The main distinguishing feature of clamps from other components of the pipeline, for example, fittings, is that they are not mounted in a common system, but are installed on ready-made structures. Another important feature of the fastening device is the impossibility of lateral displacement, with the likelihood of horizontal movement. This allows the water supply system to react to network drops during operation, protecting its integrity from damage. Another feature of clamps is the impossibility of their use at cross joints or pipe bends, in which case they become ineffective.Fasteners are used on cast iron, reinforced concrete, plastic, steel and copper pipes, often replacing welding. As a rule, they are actively used to repair damaged areas - corrosion, cracks, pipe fractures.

Despite the simplicity of the device, the quality of the clamps is strictly regulated by GOST. This is due to the fact that the products are widely used for laying communications and ensure the strength of the entire backbone system. For all types of clamps, standards, standard sizes, and permissible loads have been established. Polymer fasteners also have the standards established by GOST 17679 80, where all the specified parameters are available for design features and performance.

Repair clamps for pipelines: operating rules and appearance

To eliminate the dangerous consequences of accidents on pipelines, repair type clamps are used. For example, in the event of a breakthrough in the water supply or heating system, it is enough to simply fix the place of the problem without relieving the pressure. This repair method can be temporary or permanent.

The repair clamp can be composed of several sections

Technical data for repair anchors

From a technical point of view, a stainless steel or galvanized pipe clamp is a bracket with a rubber insert, which gives the connection a tightness. However, these attachment models are intended solely for damage in straight pipe runs. Broken structures at bends or branches cannot be repaired in this way.

Pipeline repair tools must have the following characteristics:

• the presence of bolt clamps;
• the presence of rubber sealants of different thicknesses;
• the possibility of spacers of crimping parts between themselves;
• durable metal that does not lend itself to deformation.

What are the types of repair clamps

Depending on the complexity of the work on fastening the pipelines, it is necessary to choose the model of the repair clamp. Let's deal with the existing varieties:

• unilateral. Most often, this is a U-shaped model of fasteners, which has one half-shaft with threads at the ends and a bridge, which subsequently fixes the pipe with bolts. However, this version of the device is convenient only to prevent various leaks;
• double-sided is a structure that has two metal semicircles, which are connected to each other with bolts, which on this structure can be from 2 to 4 pieces;
• multi-part. Such a clamp is a more complex type of fastening. Typically, this option is designed to fix several pipelines at the same time.

Power fasteners can taper towards the attachment point

Types of crimping metal pipe clamps

The type of crimped metal products determines their purpose and design features. They can be classified as follows:

• spiral - for fixing it is necessary to turn clockwise or counterclockwise, used on water supply networks made of reinforced plastic pipes;
• power clamp is a metal tape equipped with a tightening structure, can be used for fixing and repairing pipelines of various geometric shapes (circle, square) and for various purposes;
• reinforced fasteners - used for various types of hoses and hoses, it is a metal lock connected to a metal tape;

Clamp type "reinforced fasteners"

• wire fastening - made in the form of several rings of wire, connected by a mechanism for tightening them;
• a worm clamp is a metal strip with cuts (track) applied on its surface, equipped with a screw for tightening the strip;
• pipe clamp - made in the form of two half rings, one of which is equipped with an element for fastening to building structures and screws for fastening them;
• spring clamp - used in hot water supply and heating networks, it is a metal strip with applied holes, twisted under a certain diameter;
• with rubber seal - can be equipped with the various types of clamps discussed above, which provides strength and tightness for models used for repair purposes.

Clamp of worm type

Clamps of the "reinforced fastener" type are also called power hinge devices, which is due to their design and the principle of operation of the fastening element. Worm gear models can be referred to as band metal clamps, which is also related to their design. Wire products can be referred to as spiral, therefore, when choosing a model, you need to be guided by these names. All types of clamps can be produced in a reinforced design, which is expressed in the dimensions of the materials used (thickness and diameter), as well as the design of the tightening mechanisms.

Spring clamp, self-clamping

Species overview

Crimp fastening clamps allow you to quickly and firmly connect pipes and hoses of different diameters, and fix the main pipeline at different heights. The wrapping element in these designs is the tape. One of the reinforced varieties of these parts, which differs in the method of fastening, is a power hinged clamp. It is easy to guess that the bolted appearance of the element is fastened with bolts when fixing pipes.

Basically, power mounts differ in several types.

By material

All devices are divided into metal and plastic.

• Single bolt models are available in stainless steel, zinc alloy steel and brass.
• The nylon power tie is more durable and can withstand maximum load. Polymer clamps allow you to use them for fixing polypropylene pipes, as well as for flexible air ducts when installing an air conditioner.
• Reinforced pipe clamps for the sewer system and water supply are always made of stainless steel and have increased durability.
• Bolted types of structures are almost always supplied with a rubber profile, especially if it is a plumbing system.

Metal steel pipe clamps

Fastening clamps are made of various types of metal and differ in geometric dimensions, design and type of fixation.

Main technical parameters and material of manufacture

In the manufacture of metal clamps, stainless or carbon steel is used with a protective layer against corrosion (zinc or other material). The main technical characteristics of such products are:

• standard size that determines the diameter of the pipe to be fixed (measured in inches);
• thickness (measured in mm);
• the size of the connecting nut (if any);
• workload (measured in kilonewtons);
• breaking load (measured in kilonewtons).

Structurally, the fastening elements can support a different number of pipes at the same time when they are laid in parallel

Constructional forms and type of fixation

The type of fixation provided on the product determines the type of pipeline on which a particular model can be used, as well as its purpose. There are two types of fixation:

• rigid (fixed) - performed in places of bends and branches in water supply and sewerage systems;
• floating (movable) - used in heating and hot water supply networks, where longitudinal displacements of pipes during operation are possible, associated with a change in the temperature regime of the systems.

By design (shape), metal fastening clamps are of the following types:

• split ring;
• two half rings;
• U-shaped bracket.

The U-shaped bracket is made for each standard size of pipes, which allows you to choose the necessary fastening element for pipelines of different diameters

Installation tips

• Modern power products are easy to install, and there is no need to go to great lengths to get a good tightening. Moreover, excessive overtightening can result in reduced product life and rapid wear.
• If a single bolt clamp is used, then it just needs to be unscrewed to the required pipe size, installed and tightened with a wrench using a screw.
• When attaching the clamp, you need to choose the correct diameter of the drill for drilling the hole.
• The pipe should only be secured using the method specified for the selected clamp.
• If standard clamps are suitable for hermetic fastening of cast iron pipes, then in high pressure areas it is better to choose reinforced gear models.
• Do not forget to securely fix the pipes themselves after tightening with the clamp. To do this, you need to think in advance about additional fasteners.

Based on practice, with a properly selected, high-tech clamp, there are usually no problems with its installation and further operation.

See below for an overview of power clamps.