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.

Hydraulic press

Hydraulic machine is a kind of liquid as the working medium, according to Pascal's principle is used to transfer energy to achieve the various processing machines. hydraulic hose couplings machine generally by the machine (host), three part of power system and hydraulic control system. Valve of hydraulic fitting adapters press hydraulic classification machine, hydraulic fluid, hydraulic engineering.
Hydraulic machine (also known as: hydraulic machine) hydraulic machine is a kind of static pressure by liquid to the processing of metal, plastic, rubber, wood, powder and other products machinery. It is used in pressing technology and pressing forming process, such as: forging, stamping, bending, flanging, Leng Ji, straightening, sheet metal drawing, powder metallurgy, pressing etc..
Its principle is the use of liquid pressure transmission machinery making use of Pascal's law is made, and many kinds of. Of course, also need to use the root is varied. According to the type of liquid, such as transferring the pressure points, there are oil press and hydraulic press two categories.
Water press the total pressure, commonly used in the forging and stamping. Hydraulic forging press is divided again for forging hydraulic press and free forging hydraulic press two. Die forging water press to die, but not die free forging hydraulic press.

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.

Hydraulic tube fittings can not be used to replace ordinary dedicated connector

 In the hydraulic system, either a metal hydraulic tube fittings, hoses or fittings, are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a larger force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression Hydraulic tube fittings nut, but also eliminate the pipeline force. For flared tube hydraulic tube fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated.Hydraulic tube fittings in the hydraulic system, the connecting member and the pressure tubing hydraulic tube fittings  tubing between. If you use a male and female cone top pressure seal, which is mostly due to the two cone leak damage, is available on the cone grinders for grinding. For use oil sheet, wool felt, soft steel board, combination gasket sealant joints or pipe leaks, no matter what the material is, you should first check the seals for damage, deformation, aging and rough through the large, etc. and then take the appropriate measures.Hydraulic tube fittings can not be used to replace ordinary dedicated connector, because the hydraulic are can withstand a lot of stress.

Hydraulic tube fittings can not be used to replace ordinary dedicated connector

Hydraulic tube fittings in the hydraulic system, the connecting member and the pressure tubing pressure tubing between. Hydraulic tube fittings can not be used to replace ordinary dedicated connector, because the hydraulic are can withstand a lot of stress. In the hydraulic system, either a metal hydraulic tube fittings, hoses or fittings, are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a hydraulic tube fittings  force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression ferrule nut, but also eliminate the pipeline force. For Hydraulic tube fittings tube hydraulic tube fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated. If you use a male and female cone top pressure seal, which is mostly due to the two cone leak damage, is available on the cone grinders for grinding. For use oil sheet, wool felt, soft steel board, combination gasket sealant joints or pipe leaks, no matter what the material is, you should first check the seals for damage, deformation, aging and rough through the large, etc. and then take the appropriate measures.

The difference between the ordinary hydraulic pipe fittings and joints

The difference between the ordinary hydraulic pipe fittings and joints: the largest and most significant difference is that the hydraulic pressure is larger staggering, hydraulic oil pipe suddenly burst impact force is great. Hydraulic pipe fittings quick principle: quick-change connectors, one is with a one-way valve, one is without a check valve. Application with check valve, check valve and the gas source is connected to the end, when you disconnect the check valve closes automatically when you turn on the activity side thimble-way valve is opened. Is the use of self-locking ball is embedded in the groove, while the locking balls from Hydraulic tube fittings sleeves. Preswaged sets of pipe joints of the most important aspects of pre-installed, directly affects the reliability of the seal. Generally require a dedicated hydraulic tube fittings. Small diameter joints can be pre-installed on the vise. In practice, as a parent with a joint, nut, ferrule can be pressed onto the tube. There are card sets straight couplings, sleeve type end straight through turn heads, card sets of tee joints and other types.Category  hydraulic tube fittings pipe fittings: hydraulic hose, high pressure ball valves, intent odd quick connectors, card sets fittings, welded pipe fittings, high pressure hose, transition type fittings, bite type tube fittings, tee pipe fittings, non-standard pipe fittings, flare fittings, angled fittings, rotary tube fittings, quick connectors, stainless steel pipe fittings, copper fittings.

Hydraulic tube fittings classification and pre-installed

Category LIUJIN hydraulic tube fittings pipe fittings: hydraulic hose, high pressure ball valves, intent odd quick connectors, card sets fittings, welded pipe fittings, high pressure hose, transition type fittings, bite type tube fittings, tee pipe fittings, non-standard pipe fittings, flare fittings, angled fittings, rotary tube fittings, quick connectors, stainless steel pipe fittings, copper fittings. The difference hydraulic fittings suppliers  the ordinary hydraulic pipe fittings and joints: the largest and most significant difference is that the hydraulic pressure is larger staggering, hydraulic oil pipe suddenly burst impact force is great. Hydraulic pipe fittings quick principle: quick-change connectors, one is with a one-way valve, one is without a check valve. Application with check valve, check valve and the gas source is connected to the end, when you disconnect the hydraulic tube fittings  valve closes automatically when you turn on the activity side thimble-way valve is opened. Is the use of self-locking ball is embedded in the groove, while the locking balls from "tapered cylindrical ---" sleeves. Preswaged sets of pipe joints of the most important aspects of pre-installed, directly affects the reliability of the seal. Generally require a dedicated pre-filter. Small diameter joints can be pre-installed on the vise. In practice, as a parent with a joint, nut, ferrule can be pressed onto the tube. There are card sets straight couplings, sleeve type end straight through turn heads, card sets of tee joints and other types.

The principle of hydraulic tube fittings

The difference between the ordinary hydraulic pipe fittings and joints: the largest and most significant difference is that the hydraulic pressure is larger staggering, hydraulic oil pipe suddenly burst impact force is great.Hydraulic pipe fittings quick principle: quick-change connectors, one is with a one-way valve, one is without a check valve. Application with check valve, check valve and the gas source is connected to the end, when you disconnect the check valve closes automatically when you turn on the activity side thimble-way valve is opened. Is the use of self-locking ball is embedded in the groove, while the locking balls from hydraulic tube fittings  sleeves. Preswaged sets of pipe joints of the most important aspects of pre-installed, directly affects the reliability of the seal. Generally require a dedicated pre-filter. Small diameter joints can be pre-installed on the vise. In hydraulic pipe fittings, as a parent with a joint, nut, ferrule can be pressed onto the tube. There are card sets straight couplings, sleeve type end straight through turn heads, card sets of tee joints and other types. Category LIUJIN hydraulic tube fittings pipe fittings: hydraulic hose, high pressure ball valves, intent odd quick connectors, card sets fittings, welded pipe fittings, high pressure hose, transition type fittings, bite type tube fittings, tee pipe fittings, non-standard pipe fittings, flare fittings, angled fittings, rotary tube fittings, quick connectors, stainless steel pipe fittings, copper fittings.

Considerations of hydraulic tube fittings

  In the hydraulic system, both the metal pipe fitting, hose fitting, or are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a larger force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression Hydraulic tube fittings  nut, but also eliminate the pipeline force. For flared fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated.  
  Pipeline installation: hydraulic tube fitting  to try to avoid the heat radiation and cooling water temperature is too high or too low spray and other place, conflict occurs when you install, you should make a small tube bassoon, low-pressure pipe so that the high-pressure pipe; pipe cross each other can not be contact should be separated by a certain distance. Installation Notes: moving or still in the pipeline are not excessive bending, can not bend at the roots, moved to the extreme position when the pipeline must not pull too tight, should be more relaxed; try to avoid torsional deformation of the pipe; pipe as far as possible away from heat radiating member, the necessary insulation board fashion.

Hydraulic tube fittings classification and disclosure process

Hydraulic tube fittings in the hydraulic system, the connecting member and the pressure tubing pressure tubing between. Hydraulic tube fittings classification: Hydraulic hose, sleeve type fittings, quick joints. Hydraulic tube fittings can not be used to replace ordinary dedicated connector, because the hydraulic are can withstand a lot of stress. Quick-change connectors, one is with a one-way valve, one is without a check valve. Application with check valve, check valve and the gas Hydraulic tube fittings is connected to the end, when you disconnect the check valve closes automatically when you turn on the activity side thimble-way valve is opened. In the hydraulic system, both the metal pipe fitting, hose fitting, or are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a larger force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the hydraulic tube fitting ends in good condition and the extent of compression ferrule nut, but also eliminate the pipeline force. For flared fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated.

installation and considerations of hydraulic tube fittings

Hydraulic tube fittings installation Notes: moving or still in the pipeline are not excessive bending, can not bend at the roots, moved to the extreme position when the pipeline must not pull too tight, should be more relaxed; try to avoid torsional deformation of the pipe; pipe as far as possible away from heat radiating member, the necessary insulation board fashion. Hydraulic tube fittings  pipeline installation: Hydraulic tube fittings to try to avoid the heat radiation and cooling water temperature is too high or too low spray and other place, conflict occurs when you install, you should make a small tube bassoon, low-pressure hydraulic tube fittings so that the high-pressure pipe; pipe cross each other can not be contact should be separated by a certain distance. In the hydraulic system, both the metal pipe hydraulic tube fittings, hose fitting, or are prone to leakage problems. For card sets of hydraulic tube fitting joints, mostly due to the pipeline by a larger force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression ferrule nut, but also eliminate the pipeline force. For flared fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated.

hydraulic tube fittings Introduction

  hydraulic tube fittings is in addition to the power source, a control section, the application of elements outside the executive body of the hydraulic system, the other part. For example, filters, air-cooled, liquid level gauge, thermometer and more. Commonly used in the press; engineering machinery, dump truck, etc. Hydraulic tube fittings commonly used in self-unloading trucks, hydraulic lifting device has an associated loading and digging equipment, steel, metallurgy and mining. hydraulic tube fittings , air-cooled, level gauges, thermometers, directional control valves, pressure control valves, throttle valves, pressure gauges, level gauges, filters, coolers, fittings, tubing, seals belong hydraulic tube fittings. Hydraulic tube fittings. Hydraulic line fittings, hydraulic valve, tee, end straight nuts over. Articulated. Valve fittings, cylinders joints and the like. Hydraulic cylinders, cylinders, hydraulic valves, hydraulic pumps, hydraulic station for machine tools on.Connectors are indispensable electronic device components, observe current flow along the path, you will always find one or more connectors.

hydraulic tube fittings installed

hydraulic tube fittings in the hydraulic system, the connecting member and the pressure tubing pressure tubing between. The most common technique of hydraulic pipe surface rust treatment handpiece used widely used in the hydraulic fittings industry. After this process the Hydraulic tube fittings  metal parts, the appearance looks more shiny, pretty, and corrosion resistance capabilities are greatly improved over the general galvanized parts, performance has been greatly improved. hydraulic tube fittings tube length as needed by sawing or special pipe cutting machines and other equipment off when installing pipe hydraulic tube fitting , and definitely not with a melting off (such as flame cutting) or wheel cutting; removing the pipe ends and outside round burrs, metal chips and dirt; remove pipe fittings anti-rust agents and dirt; but also to ensure that the tube roundness. hydraulic tube fittings , air-cooled, level gauges, thermometers, directional control valves, pressure control valves, throttle valves, pressure gauges, level gauges, filters, coolers, fittings, tubing, seals belong hydraulic fittings.

Hydraulic tube fittings leak prevention

In the hydraulic system, both the metal pipe fitting, hose fitting, or are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a larger force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression ferrule nut, but also eliminate the pipeline force. For flared hydraulic adapter fittings , mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated. If you use a male and female cone top pressure seal, which is mostly due to the two cone leak damage, is available on the cone grinders for grinding. In some with "о" or outer-ring seal on the end face of the occasion, the leakage following reasons: "о" ring deformation caused by bsp fittings or leakage; "о" ring assembly is not in place, so that the two-plane connection when the pressure is uneven or "о" ring is cut cause leakage; "о" ring is not compacted, less elastic deformation caused by leakage; "о" mouth-ring groove just too deep and cause leaks. In this regard, the need to re-select the same diameter and cross-sectional thick "о" rings can also be sealed with a flat opening slot stop cutting or grinding to reduce the groove depth mouth only to make "о" rings are sufficiently resilient deformation. For use oil sheet, wool felt, soft steel board, combination gasket sealant joints or pipe leaks, no matter what the material is, you should first check the seals for damage, deformation, aging and rough through the large, etc. and then take the appropriate measures. Hose in a npt fittings  or stationary, and can not be bent excessively, can not bend at the base, at least 1.5 times the start of the bending diameter; Hose moved to the extreme position not pull too tight, should be more relaxed; Try to avoid the hose twisting deformation; Hose as far away from the heat radiating member, fashion necessary insulation board; Avoid hose external damage, such as the use of the term with the friction surface of the member; If the hose weight caused excessive deformation, should support members.

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.

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.

use of the high-pressure hose size

When the high-pressure hose be withheld , will always produce withhold too tight or too loose phenomenon, and these phenomena often lead to adverse effects of high pressure hose . Today we say it is the size of the amount withheld would it have any effect on the high-pressure hose . We carried out by the following detailed understanding .Withhold the amount and rate of withholding high pressure hose and fittings assembly when the improper or joint structure and material , size selection is unreasonable, can lead to high pressure hose and fittings withholding too hydraulic hose assemblysor too loose will cause early damage to the joints .When assembled , if the withholding amount is too small, that is between the high pressure hose connector and cut through the loose , high pressure hose there may emerge in the role of oil in the early use from the joint ; If withholding is too large, then the connector and hose too hydraulic tube fitting , easily lead to hose inner being localized damage, cracks , directly into the high-pressure oil from the ruptured steel layer , and then he went to the wire along the gap between the spray coat tails , or has fled somewhere along the wire layer build up , so that the outer layer of plastic to produce drum kits and even rupture . Hoses and connectors in the assembly, if the withholding too fast, likely to cause damage to the plastic layer and the wire break, so that premature failure of the hose in use .The above information is very detailed description of the effect of the size of the amount withheld for the use of high-pressure hose produced , so we need considerable attention when using this withholding his dosage size is accurate, whether the mutation will produce high pressure hose , etc. problems should close attention.

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

Brazing metal hose connector structure has the following characteristics

Brazing metal hose connector structure has the following characteristics:
Brazing seam wall shape is more complex. A corrugated thin steel net. Shown in Figure l . In order to ensure the tightness of brazed joints and carrying capacity , for brazing high quality requirements , and in the production of sufficient stability. Because corrugated hose and fine steel mesh thin thin, fast flame with oxygen B manual Hydraulic pipe fittings cause overheating. Bitter than 830C is generated stability of chromium and titanium oxides is difficult to remove , the solder is almost impossible , so the required soldering process to prevent oxidation. In the welding production practice . Due to its special structure and unfavorable factors, using oxygen B brazing often difficult to achieve faster design and process requirements. In order to properly solve this problem. We use Arc Brazing new technology. That is carried out under an inert gas protection pull arc melting brazing , MIG arc in the workpiece and is surrounded by protective gas .hydraulic hose assemblysaterial as the arc electrode . Continuously fed from the torch brazing zone , forming the weld brazing filler metal . Cast arc melting brazing material is characterized by a low melting point solder ( 2 silver solder melting point of 860 ~ 900 "C), high mechanical strength , the weld heat affected zone is small brazing without the use of solder may not have a corrosive effect . Welding not after cleaning . device operation side cartridges. cartridges in automated.

Metal hose used for automated meter signal wire protection tube and instrument protection tube

Metal hose used for automated meter signal wire protection tube and instrument protection tube. Instrument for the protection circuit, protecting precision optical ruler to protect the sensing lines threading stainless steel hose, metal hose electrical protection; stainless Hydraulic hose fittings, good softness, dustproof, waterproof, anti-oil, anti-rust; abrasion resistance, and provide some shielding effect. The sensing for precision optical ruler line protection, industrial sensor circuit protection. Has good flexibility, corrosion resistance, high temperature resistance, abrasion resistance, tensile strength.