How to buy and use metal hose

Metal hydraulic hose manufacturers occupied in modern industry's position was certain. However, if the selection is not correct, the use of unreasonable or not installed properly, could not get ideal effect, even caused serious economic losses. Therefore, the engineering design personnel, operation and repair personnel, all kinds of metal hose connector on the proper use of knowledge must have a basic understanding of.
The selection of the length of
"Hose, can be short or long". However, metal hose working conditions often due to determine the length of inappropriate, caused by this or that problem. For example: metal hose compensator used for too long, will produce the instability; the pump inlet, pump outlet used metal hose is too long, will produce the additional vibration; metal hose is too long for the pipeline system, will produce large fluid resistance etc.. Of course, put them to shorten the length of some, there can avoid these problems. However, blindly shorten. It is impossible to achieve compensation, vibration, noise elimination purposes. At the same time, the superiority of the metal hose in other aspects are not fully reflect. So, to determine the metal hose length is a very important work.
(1) as a metal hose compensator for, its length depends on the diameter size. The following basic principles: the calculation of diameter less than or equal to 250 mm, diameter less than or equal to 400 mm in diameter, that is less than or equal to 1000 mm,: in the pipeline system, if the compensation of a compensator is not enough, you can use two, three....... If by spatial location conditions, compensator may not install a plurality of, can choose a duplex structure. But the formula (7. (7, 1). (7, 2). 3) principle shall not violate.
(2) for the vibration, the elimination of the pump inlet, pump outlet pipe with noise, depends on the length of the path size, i.e. diameter less than or equal to 100 mm, formula (7. 1) ~ (7. 4), the L compensator or metallic flexible hose length; for the compensator or metal hose diameter.
(3) metal hose angular displacement, length depends on the actual bending radius and displacement angle. That is, (4) metal hose of lateral displacement, length depends on the actual bending and transverse displacement radius size. That is: cut the line refers to the time of the lateral displacement of the metal hose, transitional stage two of the same radius, different direction bending pipe. The calculation, according to the times of the diameter generally consider the length of.
(5) in the bending state, parallel longitudinal movement of the metal hose length depends on the actual bending radius and longitudinal movement quantity. That (6) in the bending state, the parallel sections of lateral movement of the metal hose length depends on the actual bending radius and the transverse moving volume size). That is the formula (7. 5) ~ (7. 2), and L is a metal hose flexible segment length; for metal hose diameter; displacement angle; Y is a single horizontal displacement; T is the total displacement of longitudinal or transverse quantity.

DKJ connector

DKJ connector layout and characteristics: DKJ card type of flexible metal hydraulic hose adapters, steel and hose connections will be no threads, save the threading process, only the screw is screwed into the can; metal joint is made of zinc alloy material by die casting, surface galvanized, frosted, or chrome plated; layout tight, high strength. Reliable, connection pipe and the metal hydraulic hose assemblies surface is beautiful; the metal joint for sleeve type, stainless steel metal hose to the metal hose connection on the steel pipe is threaded metal hose; adaptation: JS type, JSH type, JSB type, JSHG type; adapting pipe: a thin steel wire tube, black and galvanized iron pipe (water, gas pipe); use DKJ card type metal joint note standard, scale steel hose connection.

Brief introduction of the main parts of the package plastic analysis of metallic hose

Plastic coated metal hydraulic hose adapters adopts the material of main parts of austenitic stainless steel, so as to ensure the plastic coated metal hose excellent heat resistance and corrosion resistance, metal hose plastic package operating temperature range of -196-600 DEG C, the maximum, in the actual use of the process, according to the pipeline corrosion medium of choice corresponding stainless steel grades, can ensure the package the corrosion resistance of plastic metal hose.
The annular plastic coated metal hose assembly is a corrugated pipe shaped casing closed circular, between the wave and the wave formed by a series of corrugated rings. The annular plastic coated metal hose by welding seamless pipe or tube forming process. Restricted by the way of processing, compared with the spiral corrugated pipe, the tube length is usually shorter.
Plastic coated metal hose is plastic metal hose through high precision plastic forming by a very thin wall seamless or the welding of stainless steel package. Due to the elastic properties of plastic coated metal hose profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb all kinds of motion and deformation of cyclic loading, especially has the ability to compensate for large displacement in pipeline system.

The package installation and application range of plastic hose connector

Plastic coated metal hose assembly is mainly used in the production and processing of cable protection. Because the plastic coated metal hydraulic hose couplings is light in weight, and flexible with good connecting strength, accessories, electrical properties and oil resistance, water splash and other characteristics, so is widely used in electric power, chemical industry, metallurgy, light industry, machinery and other industries. The package uses plastic hose is the protection of wire and cable as well as for insulation, waterproof, and can increase the cable bending appearance.

DPJ external thread connecting metal hose joint structure and properties.

Reliable, connection pipe and the hydraulic hose fittings surface appearance; the metal joint isself fixed type, metal hose connection on the steel pipe to be no threads or non threaded device outlet; adaptation of metal hose: JS type, JSH type, JSB type, JSHG type; adaptation of thin steel wire pipe, steel pipe: Black, galvanized iron pipe (water,gas pipe); selection of DGJ self fixed type hose fittings joint please heed cohesion pipehose specifications, dimensions. Reliable, connection pipe and the metal hose surface appearance; the metal joint for sleeve type, used for metal hose connections on the steel pipe is threaded metal hose; adaptation: JS type, JSH type, JSB type, JSHG type;adaptation: thin steel wire pipe, steel pipe, galvanized iron pipe (water, black the gas pipe); use DKJ card type of metal.
Reliable, connection pipe and the metal hose surface appearance; the metal joint isself fixed type, metal hose connection on the steel pipe to be no threads or non threaded device outlet; adaptation of metal hose: JS type, JSH type, JSB type, JSHG type; adaptation of thin steel wire pipe, steel pipe: Black, galvanized iron pipe (water,gas pipe); selection of DGJ self fixed type metal hose joint please heed cohesion pipehose specifications, dimensions. Reliable, connection pipe and the metal hosesurface appearance; the metal joint for sleeve type, used for metal hose connectionson the steel pipe is threaded metal hose; adaptation: JS type, JSH type, JSB type,JSHG type; adaptation: thin steel wire pipe, steel pipe, galvanized iron pipe (water,black the gas pipe); use DKJ card type metal joint please heed cohesion pipe hosespecifications, dimensions. DGJ self fixed type metal hose joint structure andcharacteristics: DGJ self fixed type metal hose connector, can pipe will be no threadsor non threaded outlet connection equipment export and hose, save the threadingprocess; JINGSHENGFLEX metal joints with zinc alloy material by die casting, the appearance of galvanized, grinding sand, or chromium plating; structure tight, high strength. DKJ card type metal joint structure and characteristics: DKJ card type offlexible metal hose, steel and hose connections will no thread, save the threadingprocess, only the screw is screwed into the can; metal joints with zinc alloy materialby die casting, the appearance of galvanized, grinding sand, or chromium plating;structure tight, high strength. DPJ external thread connecting metal hose jointstructure and characteristics: DPJ external thread connection type metal hose connector is to extend the product JB/GQ0552-83 D95-5 metal joint;JINGSHENGFLEX joint with metal zinc alloy material by die casting, the appearance of galvanized, grinding sand, or chromium plating; structure is strict, non porous, high strength. Reliable connect and metal hose, surface appearance not stingy; the metalconnector for terminating type, used to line linking pieces of metal hose connectionon the box body; adaptation of metal hose: JS type, JSH type, JSB type, JSHG type;recommended by British metal hose connector or metric thread metal joints; can be customized various types of non-standard metal hose connector, particularly a metal joint.

Features soft metal joints

1.Corrosion resistance: metal body with soft joints 304 or 316L stainless steel molding, both ends of stainless steel or carbon steel fitting joints with good corrosion resistance. Securing sealing ability. 2. beautiful appearance: the appearance of soft metal joints Cheng Liang, permanent bright as new. 3. The high pressure: Consider the actual operating pressure metal soft joints, using a variety of factors such as environmental conditions and usage, all the parameters have been a careful calculation and trial and error, to ensure their safety at work under pressure. 4. shockproof, anti-dislocation: stainless steel corrugated hydraulic hose assembly has good flexibility and compensation displacement characteristics. 5. Construction is good: for thin-walled metal flexible hose fittings fittings, our main business of stainless steel metal hose, the overall weight, which greatly reduces the load of construction jobs and construction time.

Stainless steel quick joint characteristics

1, time and labor saving: breaking and connecting circuit through a quick hydraulic hose assemblies , the movement is simple, save time and manpower. 2, fuel-efficient: broken circuit, singlevalve fast hose assembly can be closed oil circuit, oil can not flow out, avoid the oil pressure loss. 3, environmental protection: quick connector and connect broken, oil can notleak spilled, Protect environment. 4, equipment, unique design, convenienttransportation: large equipment or hydraulic tools need to be easy to carry, use the fast joint after the split of transportation, destination and then assembled using. 5,economic: the above various advantages of creating economic value for customers.

The package installation and application range of plastic hose connector

Plastic coated metal hose assembly is mainly used in the production and processing of cable protection. Because the plastic coated metal hydraulic hose couplings is light in weight, and flexible with good connecting strength, accessories, electrical properties and oil resistance, water splash and other characteristics, so is widely used in electric power, chemical industry, metallurgy, light industry, machinery and other industries. The package uses plastic hose is the protection of wire and cable as well as for insulation, waterproof, and can increase the cable bending appearance.

High-pressure hose hidden precautions

First, choose a brand , quality assurance business , quality assurance, sales and service companies generally better manufacturing , high quality requirements .
Second, pay attention to the hydraulic fittings high-pressure hose assembly installation and operation. Not blindly cut production .Third, the high-pressure hose for industrial products, the use of units should be aware of their required product specifications. Blindly buy one of the factors also contributed to the quality problems .Fourth, as the user , but also pay attention to the high-pressure hose storage environment.

Metal hose selection

For a certain length and gauge metal hose, its ability to withstand stress and shock have certain limits, therefore, when used to choose according to the actual situation. Generally used with a nominal hydraulic hoses pipe same nominal diameter, length of the hose under the sink array of tanks, lateral displacement temperature deformation, misalignment, and other factors to produce an earthquake to determine. Corrugated metal hydraulic ferrules, nets and joint composed of three parts, bellows are made ​​of stainless steel, with good flexibility, small longitudinal rigidity and bending stiffness, can work within a radius of curvature of the nominal, with strong corrosion resistance and good temperature stability. Nets from the strengthening of the role of the metal hose with a larger carrying capacity. Therefore, the metal hose with shock, subjected to bending, absorb stress.

Overview of the hose

Hoses are divided into: stainless steel hose, metal hose, corrugated hose, plastic hoseCorrosion resistance of stainless steel hydraulic ferrule depends on the content of chromium, when added to the 10.5% of chromium, the atmospheric corrosion resistance of steel significantly increased, but the higher chromium content, while still being improved corrosion resistance, but obvious. The reason is that when the steel with a chromium alloying treatment, the type of change has become similar to the surface oxide formed on the surface of pure chromium oxide of the metal.Chromium-rich oxide protects the surface of this tightly adherent to prevent further oxidation. Such thin hydraulic fittings oxide layer, through which you can see the natural luster of stainless steel surfaces of stainless steel has a unique surface. Moreover, if the damaged surface, and atmospheric reactions exposed steel surface will self-repair, re-formation of this "passive film", continue to play a protective role.

Development of hydraulic hose assembly

After a few years of rapid development of reform and opening up , China's hydraulic hose assembly industry has made tremendous progress , their results were witnessed world , due to the development of Jic hydraulic fittingsassembly industry , the whole process of industrialization has also been driven up, get up vigor and vitality. Now, in the 21st century , especially after the party's 18 , China's economic development has entered a new phase, corresponding , for many industrial sectors and departments have also made ​​new demands. Therefore, as a hydraulic hose assembly industry , the need to establish a new development ideas, promote their own development and to adapt to the new era of development plans and ideas.First, companies should establish a people-oriented business ideas. Fully excavated talent, use of personnel , with talents for the development of enterprises to make a great contribution. For this reason , companies should be based on their actual situation , the construction of a mining standards and procedures of talent, and talent to make a different for different but appropriate arrangements to allow these people to give full play the initiative in different positions forhydraulic tube fitting industry to contribute their value.Second, enterprises should also be market-oriented, proactive , rather than passive waiting for the market ruling. With a lot of uncertainty on the market , these uncertainties , for the enterprise, is a potential threat , it will affect the interests and long-term development of enterprises. Therefore, enterprises should establish a set of internal hydraulic hose industry market response plans for a variety of problems that may arise , emergency preparedness , in order to achieve the purpose of being prepared .

Hydraulic hose assembly is the basis of hydraulic system components

Hydraulic hose assembly is the basis of hydraulic system components. Various hydraulic system is mainly used in construction machinery , metallurgy, mining machinery, and easy installation and removal of the . It is composed of high-pressure steel wire braided or twisted hydraulic hose assembly and steel fittings made ​​by special equipment withhold conduct hydraulic power transmission or conveying water, gas, oil pressure medium to ensure circulation of the liquid and transfer the liquid energy.
Hydraulic hoses need proper protection. Due to the complexity of hydraulic hose varieties , structural diversity, coupled with different conditions , so the length of life , not only on their quality , but also depends on the proper use and maintenance . So even if the product has high quality , if not properly used and maintained , will seriously affect the quality and longevity of its use , even a serious accident should not have occurred , causing damage to property . First of all, dedicated specifically to deal with . hydraulic hose assemblysand hose assembly can only be designed for transporting materials , other materials can not be used to send . Secondly , the use of the pressures within the . Hose and hose assembly should not be used in excess of the design working pressure ( including shock pressure ) . Third, the transportation of materials moderate temperature . Under hose and hose assembly conveyed medium temperature normal circumstances, should not exceed -40 ℃ - +120 ℃. Fourth, given the appropriate use of space hose , not bent. Hose and hose assembly should not be less than the minimum bend radius under the hose , to avoid bending or folding occurs near the pipe joints , otherwise it will impede hydraulic transmission and delivery of materials or damage to the hose assembly. Finally , keep the hose clean. Hose and hose assembly should be kept clean , inside should rinse ( especially acid output tubes, spray tubes, mortar tubes ) . To prevent foreign objects into the lumen , hinder the transport fluid , damage to the device .

Many factors will affect the use of hose assembly

Many factors will affect the use of the hose assembly. The first is the size of the hose. Inner diameter of hydraulic hose assemblysto the right, if it is too small, will affect efficiency. If the inside diameter is too large, will affect the overall system performance of the play. Therefore, it is important to select the appropriate inner diameter. Second, hydraulic hoses will also affect the temperature range of use. If the hydraulic hose working environment temperature exceeds the specified range, then the hydraulic hose pressure capacity will thus be greatly reduced. Experts suggest that if the high or low temperature working environment, should be put on the hydraulic hose jacket. In addition to the above two factors, the use of hydraulic hose assembly Hose working pressure is also affected by the impact stress and fatigue life, impact bending radius and chemical compatibility and other factors.
Hydraulic hose assembly in our lives is very wide, in the mining industry, agriculture and industrial sectors have a lot of use. It is transmitted through water and gas or oil substance hydraulic power to ensure adequate fluid energy during operation.

By utilizing high pressure hose and connector assembly and buckling mode selection is improper

By utilizing high pressure hose and connector assembly and buckling mode selection is improper. Or joint structure, material, size selection is not reasonable, can lead to joint and hose pressure too tight or too loose, causing joint early damage. The assembly, if the withholding amount is too small, crimping connector and hose pressure hydraulic flangestoo loose, under the action of oil pressure hose disengages from the joint may at the initial stage of use; if the withholding amount is too large, then the buckling pressing joint and hose pressure too tight, easily lead to hose inner layer by local damage, deformation, produce crack, high pressure oil from weak, rupture directly into the wire layer, then along the rear of the jet slot channeling to coat steel wires, or has been along the wire layer channeling somewhere accumulates, the outer layer of the hydraulic tube fitting drum kits and even cracking. Hose and connector in the assembly, if press speed too fast, easy to cause damage and fracture of the glue in the wire layer, so that the hose damage early in use. In addition, the joint design is not reasonable, Jerry, the processing quality is bad, can also cause the glue in the joint damage; if the improper material selection, not up to the high pressure hose assembly requirements. Will shorten the service life of the high pressure hose.

The inner wall of the high pressure hose for oil resistant rubber

The inner wall of the high pressure hose for oil resistant rubber, the middle braided wire (steel wire braided hose) or winding steel wire (wire wound hose)
The inner wall of the high pressure hose for oil resistant Hydraulic pipe fittings, the middle braided wire (steel wire braided hose) or winding steel wire (wire wound hose). The poor quality of the hose will appear: tube wall is uneven; steel wire braided tightly (wire small stroke), too loose (steel large stroke) or the number of the steel wire is too small; hose compression deformation (elongation, shortening or bending deformation (national standard) larger wire stroke control within plus or minus 3); the outer layerhydraulic hoses air tightness differences lead to corrosion of the steel wire (main forms: bare wire); the inner layer glue sealing difference and make the high-pressure oil easily into the wire layer; adhesive layer and the steel wire layer adhesion deficiency. This will make the hose to bear force is reduced, finally appear in the weak point of tube wall burst. Especially in the inner layer, poor air tightness of words, a compression, it Water Leakage, then directly burst pressure.

Butt weld dissimilar metal joints

Dissimilar metal joints or butt weld two different metals from the base material welded directly or using the first isolation layer added, after the method of welding, in the latter case, the spacer layer and a joint assessment of the welding process can be performed hydraulic flangesimultaneously .Taking into account the performance of existing materials, in all cases, especially in the cut specimen should be cut so that the specimen should be able to reflect the characteristics of each connection area and observe the following precautions:Transverse weld test should have been done the base material, the isolation layer (if any) and weld hydraulic fittings. Bend test shall be to make the fusion line, the isolation layer, deposited metal under stress manner. The number of samples and sampling method with the joint geometry should change.

Hydraulic fittings structural characteristics of the hydraulic system

Hydraulic fittings hydraulic system due to its simple structure, flexible layout , good self-lubricating components , easy , and combined with other transmission methods . Therefore, at present most of the equipment in all types of enterprises on a wide range of applications . I plant all tending electrolysis , casting machines and tipping hybrid furnace and other key equipment are used the hydraulic fittings system . The hydraulic system of hydraulic pipe fittings are generally closed loop piping system, hydraulic hose assemblys system failure is difficult to locate hidden main disadvantages of hydraulic drive . Equipment failure of the hydraulic system as soon as possible once the cause of the fault and immediately removed to reduce parking due to equipment caused economic losses. Engineering and technical personnel required by virtue of their professional and technical skills, basic knowledge of hydraulic ferrule transmission , hydraulic fittings components and the basic principles of structural knowledge loop failure analysis.

Joint leakage prevention, protection of life

In the hydraulic system, both the metal pipe coupling, or hydraulic hose fittings, there are prone to leakage problems. For ferrule fittings, mostly due to pipeline subject to greater external force or impact, so that the card sleeve loose or deformed face caused by leaking pipe, you should check whether the card holder out of round, whether the defect edge, whether the pipe ends intact and nut, compression level, etc., while also eliminating pipeline force.Hydraulic pipe fittings hose fittings for flared fittings, mostly due to excessive flaring, quality, undesirable or multiple demolition, resulting in flared cracks or deformation caused by leaks, then you can be re-flared front truncated. If you use a male and female cone top pressure seal, the leakage is mostly due to two cone damage, Hydraulic adapters hose fittings available on the cone abrasive grit grinding. In some with "о" or outer-ring face seal by the occasion.

Hydraulic fittings structural characteristics of the hydraulic system

Hydraulic fittings hydraulic system due to its simple structure, flexible layout, good self-lubricating components, easy, and combined with other transmission methods. Therefore, at present most of the equipment in all types of enterprises on a wide range of applications, all electrolytic tending my factory, casting machines and tipping hybrid furnace and other key equipment are used the hydraulic system. Hydraulic adapters system of hydraulic pipe fittings are generally closed loop piping system, hydraulic hose fitting system failure is difficult to locate hidden main disadvantages of hydraulic drive.Equipment failure of the hydraulic adapter system as soon as possible once the cause of the fault and immediately removed to reduce parking due to equipment caused economic losses. Engineering and technical personnel required by virtue of their professional and technical skills, basic knowledge of hydraulic transmission, hydraulic fittings components and the basic principles of structural failure analysis circuit knowledge