A dyurite sleeve is the common name for a rubber fabric product. A distinctive feature of this flexible hose is its increased strength.
general description
This name comes from the Latin word durus. If you translate it into Russian, we get "hard" or "strong." It is these qualities that demonstrate dyurite sleeves. They represent a flexible and at the same time very durable construction, which is a frame type of hose. It is also worth noting that the internal cross section of the product remains the same, even if the product itself undergoes strong bending or twisting. Because of these characteristics, sleeves have found application in many areas of human activity.
The assembly of the design of the dyurite sleeve is carried out in the manner of preparing a sandwich. The outer and inner layer of the product is made of rubber, which is suitable for such parameters as thickness and strength. Between the outer and inner layer of rubber, another, or maybe several layers of rubberized fabric are laid. It is also worth noting that the inclusion of minerals in one of three layers is allowed. However, the thickness should not exceed 0.3 mm. Another important point is that irregularities in the inner layer should also not exceed 0.3 mm in size, if any.
Application and brief description
Dyuritovy sleeves are used as flexible pipelines in hydraulic, oil, fuel, air systems. This product is able to perform its functions in a very wide temperature range - from -55 to +100 degrees Celsius. This and other operational characteristics became the basis for the product to be most widely distributed, starting with industries such as the military and aviation, and ending with the usual use in everyday life.
It is worth noting that it is best to store this product in a dark place where the temperature is maintained in the range from +5 to +15 degrees Celsius. If you comply with these rules, then you can save the hose for up to 1.5 years without losing its performance.
Fixture design
The pressure dyurite sleeve consists of three layers: internal, frame and external. If we talk about what constitutes the internal component of the hose, then this is a rubber tube. Most often, this element is neutral in its chemical composition. The main purpose of this element is the direct transportation of liquid or gas. In other words, it is through it that matter is transferred. It is important to note that the strength of this layer is so high that it does not allow the appearance of any defects - neither small nor large.
Also, another important part is the reinforcing film, which is inside this layer. The main purpose of this film is to provide additional protection against the transported liquid or gas, and also to protect against mechanical stress, which can be created due to too much pressure inside the sleeve.
Frame and outer layer
After the inner layer follows the frame. The main material for its creation was fabric. It is important to understand that the number of these frames is changing. The reason for this is that the dyurite sleeve can be used in a variety of environments. In addition, sometimes the design of the hose requires that another layer of reinforcing film be applied over all fabric frames.
Last, upper part is made of rubber substance with increased strength. However, it is worth noting that various types of plastic materials are most often added to the composition of this substance. Among them may be polyurethane, rubber or latex. The main reason for adding these substances is to increase the flexibility of the sleeve, as well as the ability to withstand dynamic effects. The quality of this particular layer will determine the quality of the entire hose, since it protects all internal structures from bends, tears, etc. Also, the tightness of the product will directly depend on it.
It is also worth noting that there is such a kind of product as a dyurite sleeve with a metal cord. In the design of the fixture, the fabric frame is replaced with steel metal cord - this is the main difference from a conventional hose.
Hose use
Currently, the most common type of such products is a 40u dyurite sleeve. The main application of the device is a connecting part in oil, air, hydraulic systems. The main requirement that the sleeve must comply with is the preservation of its performance when temperature and pressure drops. The maximum pressure that can be achieved inside the hose without rupture is 0.7 MPa. This parameter allowed the use of this product in an industry such as machine tool construction.
The diameter of the dyurite sleeve differs in each individual case. In some situations, it is necessary to install an additional tube or dispenser on the hose. In order to solve this problem, it is best to purchase caprolon products. This material has proven itself quite well, but its most important quality is resistance to various kinds of esters, weak alkalis or gases that will pass through the hose.
Storage and other applications
This sleeve is also used in an industry such as engineering. In this area it is used as a flexible hose in air and fuel systems. The dyurite sleeve was also quite widely used in the design of railway transport. The wear resistance of this product is quite high, but do not neglect the storage rules of such products. It is also important to note that when operating the hose, it is advisable to ensure that it does not bend or twist.
In addition, another important requirement is to ensure that only those substances that are permitted by its technical documentation are transported through the device. In order for the layers of the sleeve not to dry out, you need to store the product in those places where there is no access to direct sunlight, and it is also necessary to create good ventilation.
Technical requirements according to GOST
The manufacture of these devices should be carried out in accordance with the requirements of state documentation. So, according to this document, products suitable for use in climatic zones such as temperate and tropical should maintain their operational characteristics and be frost-resistant at a temperature of no more than -50 degrees Celsius. If we are talking about the use of hoses in a cold climate zone, then the frost resistance should be increased to -60 degrees Celsius.