Dimensions (edit)
For fastening pipes, cables and other elements, it is important to consider the size of the clamp. Correctly calculated parameters will provide strong and reliable fixation
The choice of the required size will help to make special tables designed for calculating polymer clamps, they are based on the parameters derived in GOST 17679-80.
The length of plastic models is presented in a wide variety, starting with minimum sizes from 60 mm and increasing according to the table up to 150 mm, 200 mm, 250 mm, 300 mm, 900 mm, 1200 mm.
When choosing fasteners for pipes, you should know their outer diameter, it must match the inner volume of the clamp ring. The maximum size a PVC fastener can count on is an 11 cm bend.
Description and purpose
Plastic clamps cannot compete with metal models in terms of strength, but they do have their advantages. Their high elasticity enables them to withstand perceptible vibrations.
As for temperature fluctuations, not all plastic clamps react stably to severe frosts, therefore frost-resistant options should be chosen for outdoor work.
Description
The fixing cable or household structure is simple. It has a fastening plastic part in the form of a tape, on one of the sides of which there are jagged lines at a slope. The opening of the locking ring is endowed with a protrusion extending in the opposite direction from the toothed plane. The tape, passing through the locking hole, moves only in one direction, pulling together the fastening object, for example, a cable. When the element is fixed, it is no longer possible to open the fastening strip. Dismantling takes place by cutting the plastic fastener. Such a device belongs to disposable clamps.
There are fasteners complicated with a dowel rod. They are mounted in pre-prepared holes to the wall, floor or ceiling. To do this, it is enough to drive the dowels into the holes, and insert the cable into the clamps.
Appointment
Plastic clamps have many modifications and purposes. At home in everyday life, on a garden plot, in a garage, they can be used in the form of fasteners in all situations that fantasy is capable of:
- repair the fence mesh;
- pack the bag;
- connect light structures;
- tie up tree branches;
- fix the hammock;
- fix the caps on the wheels of the car;
- keep the thermal insulation on the manifold.
Plastic clamps are used to hold PVC water and sewer pipes. However, the nylon fasteners will not withstand the load of metal communications.
Species overview
The clamp is a multi-purpose fastener, therefore, the appearance, dimensions, fastening strength, type of plastic are not the same for different models. They can be divided into several types.
Nylon
The simplest disposable strap design that secures the elements by tightening and does not have a reverse motion. Products are produced in a large color palette.
With mounting hole
The disposable clamp described above, but with a slight twist.
This allows you to mount the cable or other elements with self-tapping screws to the plane. The choice of color and size for these models is limited.
On a self-adhesive pad
Regular toothed tightening strap threaded through a small self-adhesive pad. These clips are handy for lightweight cables and wires.
Double lock
The clamp, made from relatively thick and durable plastic, is designed to withstand more force than the conventional nylon version. For secure fixation, the model is endowed with two locks.
Dowel clamp
Clamp dowels are small, solid, barbed plastic hinges. Sometimes they can look like a bolt with a hole in the head.
Plastic bracket (clamp) with a dowel
This model is a clamp in the form of a permanent plastic ring, fastened with a dowel. The product is not adapted to the cable tie, it is intended for fixing and holding the cable.
Clamp clamp
A type of nylon clamp that is a close-ended brace. Both edges have holes and are closed in a ring, forming a clamp, using self-tapping screws.
Anchor - hook on the strap of the tape - clings to a thin steel profile (no more than 2 mm).
Ball grip
Such a product has a tape with balls instead of a strip with barbs.
To tighten the clamp, you need to thread the balls through the key hole, and to remove it, do all the steps in reverse order.
Detachable tie
The lock on the product is endowed with a lever lock - if you press it, the tape will be released. The model is convenient for fixing a cable with a large volume.
With snap-on top foot
The collar in the form of a ring contains loops designed to be fixed to the plane using screws. It is endowed with a claw-like top hinge lock. The cable runs along the fixed rings, but the model does not have a tie effect.
Disposable and reusable
All clamps can be divided into disposable and reusable models. Disposable include the simplest options, the lock of which only works for closing. To remove them, you need to cut off the plastic tie with a construction knife. Such clamps are used for temporary use or for mounting lightweight elements. They are inexpensive - you can pay 35-40 rubles for a pack of 100 pieces.
Reusable locks are used for mounting pipes, thick cables and large structures. Small strap clamps can also be provided with openable locks, but they are not very popular.
For outdoor work
Conventional plastic products are not suitable for outdoor use. The influence of frost, ultraviolet radiation, dampness requires special qualities from the material. Common coal powder expands the operational properties well. It is added to polymers as a stabilizer. The additive changes the color of the product to black, and it also makes it resistant to ultraviolet radiation and sharp temperature fluctuations.
Clamps made of polyamide have a special thermal stability. They are able to withstand temperatures up to +1200 degrees. They are used for the installation of structures and pipes operating in places with high temperature conditions.
Frost-resistant clamps are made from quality DuPont raw materials with special additives. They are able to withstand not only severe frosts, but also prolonged persistent heat, their endurance range is from -60 to +120 degrees. Such clamps are used in the external environment for tying wires, banding them in a bundle, mounting the cable, fixing it to the wall and other surfaces.
Color variety
The presence of different shades of plastic clamps not only disguises the places of fixation, they act as a marker for electrical lines and other important objects. The black color indicates the belonging of the fastening element to the types of products for outdoor installation.
Operating tips
Install plastic clamps for everyone, you just need to choose the right product, taking into account the load, temperature environment, type of fastened structures.
When using clamps, you must pay attention to the following points:
- correctly calculate the size of the clamp;
- take into account the power capabilities of the product;
- do not forget that special types of models with enhanced performance have been developed for working on the street.
To install water pipes, you need to take into account simple rules:
- do not install ordinary clamps on too hot surfaces or near open fire - there are special models for this;
- in order to correctly calculate the number of clamps, it is necessary to make a drawing of the location of the pipes;
- the heavier the pipe, the shorter the step between the clamps;
- do not overtighten the ties, as the plastic may not withstand the stress.
Plastic clamps have gained popularity almost instantly since their invention. It is difficult to do without them in production, in the country or at home. A self-respecting owner always has a pack of disposable clamps in stock, and for more qualified work, complicated clamps can be easily purchased at hardware stores.
How to open the plastic clamp, see below.