It is literally impossible to do this with your own hands.
A standard tool at hand won't help much either.
You need to use either a specialized tool or make something similar.
With my own hands at the dawn of my labor activity manufactured hand tool for crimping hydraulic hoses. In those days there was no professional instrument yet.
First you need to understand how a hose under high pressure is pressed.
Here it is with the tip pressed on:
Visible in the photo working part with a thread and a bushing (coupling) already on the hose, it is this that is pressed in a circle.
In cross-section, the fitting with the coupling already pressed on looks like this:
The pressing process is as follows:
- the hose is cut so that the end is even.
- A coupling is placed on top of the hose and pushed further down.
- A nut is placed on the nipple with the thread facing outwards.
- the nipple is inserted into the inside of the hose until the end of the hose stops.
- the coupling also returns back to the stop or the end of the hose.
- a special crimp is put on the coupling and compresses it in a circle 360 degrees
All processes, with the exception of the last one, are done by hand and only the last one is used with a tool.
There are two ways to crimp a coupling without special equipment (during crimping you need to create strong pressure, since the coupling is made of a fairly strong and thick material); you cannot tighten such a coupling with clamps, but different types The pliers are not evenly shaped and do not press evenly on the coupling.
1 way
It is best to use a lathe, or rather a chuck for clamping parts, with four jaws, but you can also use three jaws. Clamp the coupling several times, turning it in a circle so that the pressure is even on the entire surface.
Method 2
To make the crimp yourself, to do this you need to machine a sleeve with an internal diameter similar to the outside of the coupling. Cut the sleeve lengthwise into 6 equal pieces. Turn the bushing with large diameter than the first, drill and tap threads for the bolt in six places. On the first six parts, make a notch in the center, and press a ball onto the end of the bolt.
Every man has encountered the connection between a hose and a water pipe or tap. This is usually a simple procedure: fit the hose tightly onto the pipe and turn on the water. But such a connection often leaks water, and the hose itself sometimes falls off. Then a wire clamp comes to our aid, which can help out in a difficult situation.
First of all, I would like to clearly define the concepts: what can actually be called clamps. So, this is a ring-shaped device, usually made of light metal alloys. It has a tightening mechanism in the form of a special nut, mainly with a worm thread, and also, depending on the models, a metric thread is used on the nut. In our case, the base of the device has a kind of wire base, but is made of quite durable metal, which does not deform when tightened.
IN modern version the tightening element is just the nut with metric thread, when twisted, the mechanism tightly fits the surface, while thoroughly clamping it onto the working base. The scope of application of clamps is quite wide, but the range of action is designed to create a hermetically sealed connection of hoses, rubber pipes with solid bases, and pipes. Using a clamp, you can tightly connect the water pipeline with a rubber hose and not be afraid that there may be a leak somewhere.
Even a corrugated exhaust pipe is attached to the chimney using a clamp and does not allow combustion products to enter the room.
Initially, such a device was not created specifically for household needs, but for the automotive industry. Clamps are an important element in the engine of almost any car. Ask why? The fact is that the engine of the machine during operation, due to vibration, is in a moving state, and various connections, fuel and oil supply are different pipes. It is the rubber pipes that have free movement and vibrate evenly along with the engine, while fulfilling their duties of supplying fuel. Well, they attach them to metal base clamps, they are able to provide a reliable, tight, and most importantly, durable connection of important engine components.
Among such fastenings, I would especially like to highlight one type of product: spring wire clamps, which work on the principle of clothespins; such fastenings fully correspond to their specifics. This technology allows them to be installed as intended without the use of additional tools. The design of such a device is a thickened elastic wire, and it is quite rigid, which allows it to maintain a given diameter. There are two “ears” at the edges, which act as “clothespins”.
In order to install such a clamp at the place of use, it is enough to squeeze the “ears” with your fingers, and the diameter of the clamp will increase, after which it can be put on the pipe. That's the whole process of installing this universal clamp. It is possible that skeptics may doubt that such a simple device can create a tight, airtight connection. But we can assure you that the connection is quite strong and reliable, these arguments directly confirm the laws of physics. The thing is that such devices are designed for use in places with temperature changes.
In a normal environment, the fastening mechanism exerts its influence on the connection. operating pressure, when heated, the metal begins to expand, thereby enhancing the clamping property several times. U of this device there is a small one by-effect, usually over time, such a clamp tends to pinch the rubber hose, rendering it unusable. It is not recommended to use such fasteners in a car engine, or you can use it with subsequent replacement.
It’s good when the household has such a fastening element. Of course, such a thing is not necessary every day, but there are times when you simply cannot do without a clamp, especially for car owners. But if you constantly forget to buy such a part for your kit, let's figure out together how to make a wire clamp, having minimum set tools and materials.
To do this, we need the wire itself, which should be soft enough, but at the same time quite strong. The most useful tools are a screwdriver and a screwdriver, which can be found in almost any home. Now let's take a step-by-step look at the whole process, which, as you guessed, if there are a minimum of elements, it will be quite simple.
How to make a wire clamp - step by step diagram
Step 1: Measure the required wire length
First of all, let's cut off as many wires as the diameter of our connection requires. Measuring instruments we don’t need it, just wrap the edge of the wire around the pipe and estimate the ends for twisting by eye, usually 50-60 millimeters is enough. Then fold the wire in half and use pliers to bite off the excess. We bring the ends together so that they are on the same level.
Step 2: Correct clamp arrangement
Now that you have a wire bent in half in your hands, you need to make the correct “eye” at the bend, and the diameter of the “ear” should coincide with the screwdriver, which should fit freely into it. To maintain this size, just straighten the ends, insert a screwdriver between them and bring them together again. Of course, it is best suited for such purposes; it is even along its entire length and does not have an expansion, unlike a flat one. Next, you need to bend the resulting “ear” to the side, relative to the length of the wire, it will serve as a lock.
Step 3: Detailed installation of a homemade clamp
You’ve just made a wire clamp with your own hands, it’s okay if it looks unsightly, the main thing is that it performs its functions efficiently. All that remains is to install it on your place of honor and twist tightly. To do this, bend it around the pipe, always in the form in which it is, namely twice, and cross the ends together. Then we insert a screwdriver into the “ear”, hook the other end and turn it clockwise several times until a tight connection appears. Remember that when clamping you should not be too zealous, you should feel when to stop so that the wire does not break. If the ends of the newly installed clamp are too long, we recommend cutting them off with wire cutters.
It is possible that the first time you will not be able to install a wire clamp made by yourself, perhaps you will not get the twist, or you will overtighten it, but do not despair, repeat the procedure for making the fastener again. We are confident that after several attempts you will get a high-quality and tight connection, and this simple technology will always help you out in difficult times. Patience and a little effort! But still, keep a few clamps on hand for the future. different diameters, they will definitely come in handy!
At the first signs of depressurization of the pipeline, it is necessary to quickly find the damaged area and eliminate the identified defect. When performing emergency emergency work You can use homemade clamps to stop the flow in the pipeline for a while. Ready-made clamps for fastening pipes, made in the factory from stainless steel or fire-resistant plastic, are used when performing installation work on the installation of heating, sewerage, water supply, gas supply systems. These fasteners allow you to reliably fix the position of pipes running along horizontal and vertical surfaces (ceilings, walls), as well as those installed on special racks.
In this video experienced master shows how to make a wire clamp:
Design of a simple clamp
All without exception pipe clamps consist of a bandage - a crimping material made by steel manufacturers - and an internal seal called a cuff. As a sealing material that ensures sealing of the damaged area, special corrugated rubber is usually used, which helps prevent deformation of the pipe when the fastening screws are tightly tightened. The presence of a rubber gasket in the design of the product also helps reduce vibration and noise.
When choosing clamps, pay attention to such product characteristics as:
- inner diameter;
- bandage width;
- thickness of the steel strip.
The tightening range of the clamp varies depending on the size of the fastener. The main indicators that determine the scope of its application are the strength of the connection and the level of permissible load.
Metal clamps for fastening and repairing pipes of different diameters consist of a steel frame and a seal made of corrugated rubber
Making a clamp from scrap materials
Find a strip of galvanized sheet metal, the thickness of which does not exceed one millimeter, and a piece of three-millimeter rubber. Look in your supplies for a couple of bolts (M6, M8 or M10), as well as matching nuts and washers. Tools that will be useful:
- hammer;
- calipers;
- spanners;
- vice or pliers;
- metal scissors, which can be replaced, if available, with a jigsaw or grinder, equipped with appropriate cutting elements;
- drill and drill bits (M7, M9 or M10, M12).
Use a caliper to determine the pipe diameter. If the pipe diameter is large, then take the necessary measurements using an angle and a ruler. Next, cut out the tin frame of the clamp in the form of a strip, the width of which should be 4-8 cm, and the length will have to be calculated. To do this, determine the circumference of the pipe by multiplying its diameter by 3.14 (the number Pi, familiar to everyone with school course geometry). Add 3-4 cm to the result obtained, from which “ears” are subsequently made with drilled holes for fastening bolts.
The size of the holes in the “ears” depends on the diameter of the bolts, and if the washers are wide, then you can add an extra 2-3 mm to simplify the installation of the clamp in the future. If the width of the bandage exceeds 6 cm, then it is recommended to drill holes not for two bolts, but for three. Mark with a marker a line along which to bend the “ears” at a right angle to the tin strip. This operation can be done manually if the strip is thin. Thicker material is worked with a vice or pliers.
Next, the tin is bent around the pipe on which it is planned to put the clamp, and they try to connect the ears so that the holes drilled in them coincide. If the tin does not bend well, then tap the strip with a hammer. A pre-cut rubber gasket, cut to fit the width of the bandage, is inserted into the clamp.
Algorithm for installing a clamp on a pipe
Before installing the clamp, the ears are moved apart so that they can easily wrap around the pipe. In this case, the rubber gasket should well cover the area of the pipe defect. If everything was measured correctly, then there should be no more than three centimeters between the ears. This distance will necessarily decrease as the clamp is tightened with bolts, and this process continues until the rubber seal can be pressed as tightly as possible to the pipe.
Clamp for eliminating leaks in a water pipe or heating system At home, it can be installed at the site of damage with your own hands within a few minutes.
In most cases, clamps are installed on a leaking pipe. Shutting off the supply of water, coolant or Wastewater is not produced. Therefore, the effectiveness of the repairs performed will be immediately visible. After wiping the pipe and bandage dry, wait about five minutes and make sure that the leak has been fixed. If necessary, bolts that are too long can be easily cut with a grinder or a hacksaw.
A properly installed clamp can last for several years, protecting the facility from flooding. However, it is advisable to weld breaks in water supply and heating systems or replace defective areas with new pipes.
Insertion into the main water supply
When connecting the water supply of a private house to central system water supply, a mortise pipe clamp is used, which allows work to be carried out under pressure in a short time using a specialized professional equipment. A clamp for tapping into a pipe without pressure is installed by a simple mechanic using a cutter and a pair wrenches. It is not intended to use welding machine. In any case, this work is carried out by employees of services servicing the main water supply system in locality, provided the client has all permits.
Stages of installing a mortise pipe clamp in a main pipeline. Clamps for inserting into pipes simplify work on connecting the facility to central water supply systems
Now you know how to make and install a clamp on water pipe. If the pipeline is damaged, you will be able to fix the problem yourself, at least for a while before professional plumbers arrive.