Hydraulic fast joint prevention leakage

In the hydraulic system, whether it is a metal pipe joint, or hydraulic hose manufacturers connectors, are prone to leakage problem. The sleeve type pipe joint, mostly because of pipeline subjected to external force or large impact force, the card sets loose or pipe end deformation caused by leakage, you should check the card sleeve is losing a round, cutting edge has no defect, tube end is intact and the card sleeve nut tightening degree, also eliminate the pipeline external force. The flared fitting, mostly because of the flaring over, does not meet the quality requirements or repeated disassembly, causing the flaring deformation or crack causing leakage, the front end truncated re expanding. If the use of male and female cone top pressure seal, the leakage is due mostly to the two conical surface is damaged, can be used for grinding the conical surface grinding.
In some "from" ring on end face or the outer diameter sealing occasions, the leakage reason has the following kinds: "from" ring aging or deformation caused by leakage; "from" ring assembly is not in place, the two plane connection pressure uneven or "from" ring was cut from causing leakage; "" ring not compacting, elastic deformation caused by lack of leakage; "from" ring rabbet groove deep caused leakage. In this regard, the need to re select the identical diameter and section of coarse "from" ring, can also be provided with a sealing plane rabbet groove cutting or grinding, in order to reduce the rabbet groove depth, so that the "from" ring have enough elastic deformation (compression in general should be between 0.35-0.65mm).
For the pipe joint oil resistant rubber, wool, mild steel board, combined sealing washer or sealant leak, whatever the material, should first check the seal is damaged, and the rough situation such as deformation, aging, and then take appropriate measures.

JR-2 type rectangular metal hose joint rule selection

The selection of JR-2 type rectangular metal metric hydraulic hose fittings joint right is a very important project, good metal hydraulic hose couplings and joint not only can make you very worry, effort, but also more money.
Introduces the following selection of JR-2 type rectangular metal hose several criteria.
1, liquid type and temperature, according to the different liquid choose liquid species, temperature and body material metal hose.
2, the pressure of the liquid metal soft joint selection of key, so in for different pressure of the liquid must choose strong pressure resistance of the joint.
3 determine the installation size and shape after ordering products.
The different structure of 4 JR-2 type rectangular metal hose, used in different environment, combined with the environment temperature, humidity, and dust, to select the joint type, material of body and the sealing material etc..
Construction of 5 valve has two kinds, one kind is the automatic switch valve, is a one-way switch type, so in the choice according to the valve structure selection of different joint.

Metal hose connector

Metal hose connector types and models there are many. DPJ external thread termination metal hose connector is JB / GQ0552-83 D95-5 metal connector extension products. Metal fittings made of zinc alloy material
Metal hose connector types and models there are many.
DPJ external thread termination metal hydraulic hose assembly connector is JB / GQ0552-83 D95-5 metal connector extension products. Metal fittings made of zinc alloy die-casting, zinc plated, brushed, or chrome; compact, non-porous, high strength. Metal hose, reliable, beautiful appearance. This metal connector for termination type, metal hose used to connect to the line connector on the box. Adapter metal hose: JS type, JSH type, JSB type, JSHG type. Recommended use imperial or metric threaded metal hose connectors metal connectors.
DKJ card sets metal hose connector, can no threaded pipe and hose connections, save threading process, just to drive the screw into the can. Metal fittings made of zinc alloy die-casting, zinc plated, brushed, or chrome; compact, high strength. Steel and metal hose, reliable, beautiful appearance. The metal fittings for card sets for the metal hose is connected to the top of the steel pipe is not threaded. Adapter metal hose: JS type, JSH type, JSB type, JSHG type. Pipe Adapter: thin steel wire tube, black, galvanized iron pipes (water, gas pipes).
DGJ self solid metal hose connector, can not threaded or non-threaded pipe and outlet hose connection device, save threading process. Metal fittings made of zinc alloy die-casting, zinc plated, brushed, or chrome; compact, high strength. Steel and metal hose, reliable, beautiful appearance. This is self-hardening type metal joints for metal hose pipe on top of the non-threaded or non-threaded device and outlet. Adapter metal hose: JS type, JSH type, JSB type, JSHG type. Pipe Adapter: thin steel wire tube, black, galvanized iron pipes (water, gas pipes).
JSF-SPJ Jingsheng termination stainless steel hose fittings with standard stainless steel casting, stainless steel hose fittings termination JSF-SPJ tight structure, nonporous, high strength, and stainless steel hose connected to a reliable, looks nice; JSF -SPJ metal joints are Jingsheng Shanghai Electric JB / GQ0552-83 perform standard D96-4A, D95-5 metal connector extension products; JSF-SPJ stainless steel hose connector for termination type, stainless steel hose used to Jingsheng connected to the line connector on the box; JSF-SPJ Adapter metal hose: JSF-SJS type, JSF-SJSH type, JSF-SJSB type, JSF-JSHG type.

Domestic hardware tools to accelerate the pace of industrial upgrading

2013 Hardware Tools exports continued to rise in the form of the annual session of China International Hardware Show (CIHS) is currently the largest and most influential metal show, co-hosted by the China National Hardware Association and will on 16 September 2009 to 18 May, the exhibition hall at the Shanghai New International Expo Center, there is a special architectural hardware shop. In addition to window and door hardware, architectural hardware products include: faucets, shower, toilet accessories, toilet accessories, valves,hose fittings and other plumbing hardware; modular metal ceiling lights, active partition, decorative metal decorative panels Hardware Show; various types of power granted top fasteners and metal wire, nails, screws, etc.
Metal products industry in China's foreign trade for the general trade. January 2013 to March, the general trade import and export trade volume increased 12.52%, accounting for 73.34% of the total import and export industry, which, in general trade exports year-on-year increase of 15.25 percent, compared with a year earlier than last year dropped 3.16 percentage points over the same period, general trade imports grew 2.39%, down 6.35 percentage points year over last year.

Since 2008, the expansion of domestic demand and the introduction of policies to accelerate the new rural construction, implementation of major projects, such as post-earthquake reconstruction in ... all of which are architectural hardware market opened up a huge gap in domestic demand, and our pace of building hardware product upgrades accelerated. Exhibitors exhibitors this year, the emergence of a large number of outstanding architectural hardware business on the international market competitiveness. This is not only due to supplement the domestic market foreign trade gap also shows that consumption habits and consumption levels of Chinese consumers have a significant change.

January to March 2013, metal products sub-sectors in accordance with the total import and export Sort order: architectural hardware, tools, hardware, hardware, locks, cooking utensils and other gas appliances, shower room, stainless steel products, the size of the kitchen equipment, zipper and hoods. Among them, three architectural hardware, tools, hardware and household hardware industry in the first half of the cumulative proportion of the industry's total imports and exports were 42.99%, 17.51%, 12.62% compared to a slight decrease in the same period last year, the same architectural hardware, Tools hardware industry, metal increased slightly, but the influence and quality of domestic brands of hardware tools still need to be improved.

Metal hose connector model design generally have the following requirements.

Metal hose connector model design generally have the following requirements.First, the establishment of three-dimensional model of a metal hydraulic hoses connector model in order to reduce the time , to avoid excessive model features , increase computer speed, try to reduce the number of unnecessary features. Then you need the joint coordinate system is established at entrance side , because the pipeline design layout when needed , there is a reference point for the introduction , to ensure the access pipe joint sections are straight . If you do not build this pipeline design coordinates gave the inconvenience . The establishment of hydraulic flanges coordinate system when the entrance end of the principles should be followed : z -axis direction determines the direction of the wiring . The outlet end of the tube fitting , z-axis direction always points to the outside of the pipe joint and pipeline were to enter or exit parallel to the z-axis of the pipe joint . Inlet end of the coordinate system is subject to the actual installation and joints in line, in order to facilitate assembly designers , designers make use of the assembly coordinate system installed , when you need to turn a certain angle when you can take a normal installation. Note also hide some unnecessary features like reference plane , and the coordinate axes and the like; establish a reference point , and requirements placed on the axis point to the exit end face taken from the unified Outer tube fitting 1 times .

Flared fittings uses and structural characteristics

Flared fittings uses and structural characteristicsFirst, use: flared fittings are suitable for nominal pressure of not more than 32MPa types of steel, brass on a fast-track connector. Widely used in oil refining, chemical, light industry, textile, defense, metallurgy, aerospace, automotive, medical, machinery, shipbuilding, gas and CNG filling stations and other industries. Second, the structural characteristics: hydraulic tube fittings points A and B two structural forms, A-type maximum pressure rating of PN32 suitable for the occasion. A type hydraulic hose assemblys from the joint body, sleeves and jacket nut composition, coat the outer cone nut clamping pipe and forcing cone piping cone close to the connector body and acts as a seal. Protective casing on the pipe and the guide. B-type fitting nut from the fitting body and the jacket structure, clamping nut jacket pipe outside the cone, the forcing cone piping cone close fitting body and acts as a seal.hydraulic flange have a solid connection, high pressure, tightness and good repeatability, installation, maintenance, etc..

Flared fittings pre-installed

Pre-installed , you should try to keep the tube and the coaxial connector body , if the pipe deflection is too large will cause seal failure.
    Preloaded force should not be too large. Should make the inner edge ferrule tube wall just embedding , card sets there should be no significant deformation . During pipeline connection, then the provisions of the tightening force assembled . φ6-10mm ferrule tightening force of 64-115N, φ16mmr 259N, φ18mm for 450N. If the pre- deformed when the card holder will lose the seal.
2 , prohibits adding sealant filler. It was sealed in order to achieve better results, apply sealant put on the card , the results sealant being washed into the hydraulic system , causing the hydraulic components orifice blockage failures. 3, the connecting pipe should be sufficient deformation of the tube margin , to prevent the tube subjected to tensile stresses. 4, the connecting pipe should be avoided when it suffered lateral force , lateral force caused Mifengbuyan over the General Assembly . 5, the connecting pipe should be a good one tight , to avoid multiple disassemble , otherwise it will seal performance deteriorated. Hydraulic pipe fittings structural features hydraulic fittings points A and B two structural forms , A-type maximum pressure rating of PN32 suitable for the occasion . A hydraulic hose assemblys from the joint body , sleeves and jacket nut composition, coat the outer cone nut clamping pipe and forcing cone piping cone close to the connector body and acts as a seal . Protective casing on the pipe and the guide. B-type fitting nut from the fitting body and the jacket structure, clamping nut jacket pipe outside the cone , the forcing cone piping cone close fitting body and acts as a seal . Flared fittings have a solid connection , high pressure, tightness and good repeatability, installation , maintenance, etc. .

Stainless steel mesh cover is a metal braided hoses installed in the pressure line of the main pressure parts

Metal hose connectors at both ends: Connector includes threaded connection, flange connection, quick connector, metal hose three main functions: to reduce the stress of the pipe installation, compensating pipe nominal position to absorb the vibration of piping system.Stainless steel mesh cover is a metal braided hoses installed in the pressure line of the main pressure parts, while the protective effect of Hydraulic pipe fittings, the pressure in the pipe size and locations, you can select one or more layers of stainless steel wire or steel band performed according to certain parameters is woven to form a high pressure metal hose, I produced the metal braided hose pressure range usually ask PN0.6-32.0MPa, up to 42.0MPa. Stainless steel mesh nets are set with steel nets two types.

Metal hose enterprises are facing pressure on energy saving is still heavy

Metal hose enterprises are facing pressure on energy saving is still heavy , product unit energy consumption and resource utilization compared with the international advanced level there are still gaps . Meanwhile, the company's cost remains high . China's metal hose enterprise development, enterprise scale is uneven, the overall competitiveness of the industry needs to be strengthened . The face of the financial crisis triggered by the economic downturn, the timely introduction of the implementation Hydraulic tube fittings national expansion of domestic demand growth, improve the export tax rebate rate and a series of favorable policies and measures , effectively pulling the domestic market, metal hose enterprises to reduce losses generated rebound positive effects play an important role. Ceramic industry for the better stabilization of the overall situation , but the pressures and challenges still . In fact , due to various reasons, our metal hose industry in the development process accumulated in some deep-seated contradictions and problems, not only surfaced , but exposes future development focus and difficulty lies. Requires us to stand on the height of a global perspective , a good grasp of the economic development cycle , analyze the national macro- policy direction for the metal hose industry market conditions to analyze specific issues , understand the situation, seize opportunities, reasonable forecast future trend of metal hose industry and formulate correct development planning, timely adjust their development strategies , and actively explore new markets, the crisis in an invincible position in the development of a higher level.

Professional production companies ferrule fittings hose fittings classification tell you

Push-in fittings : Often used in pneumatic circuits nylon tubing and polyurethane tube link. * Banned * Solenoid valve * ban * Parameter parsing level
Application after inserting the tube by fitting the elastic snap ring firmly its own bite by an O- ring seal . Just unloading tube circlip depressed , you can conveniently pull out the tube . Push-in fittings variety, dimension series is also very complete, is the most extensive use of hose fittings a . Quick Change Connector: neither need a thing but also to achieve rapid loading and unloading of pipe joints in the piping assembly and disassembly are often needed especially useful . Quick-change Hydraulic hose fittings with internal unidirectional element , ball joints rely on each other when convergence positioned on both sides of the gas line connected ; joints unloaded open , gas is disconnected , no longer need to install air source switch. Quick coupler with inner rib, outer rib , metric rib, rib cylindrical tube , tapered tube and one end of the rib rib, the other end of Budo joints, two are Budo are rib joints and two other kinds of situations . Joint body data with brass or steel. Hydraulic pipe fittings in the name of individual nickel-plated chrome finish. Quick screw fittings : its structure in the outer cone connector body has an arc -shaped table , the receiver will be set in the hose fitting on the outer cone nut can be tightened to seal probation . It is useful in nylon tube , plastic tube convergence. Budo fittings : in fact, used in rubber tubes and plastic tubes convergence, when things pressure > 0.4Mpa, the wire will probably need to use hose clamps truss .

Flared fittings factory tells you to prevent leakage of hydraulic quick coupling

In the hydraulic system, both the metal pipe coupling, or hydraulic 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. 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, available on the cone abrasive grit grinding.In some with "о" or Hydraulic pipe fittings face seal by the occasion, the leakage following reasons: "о" ring aging or deformation caused by leakage; "о" ring assembly is not in place, so that the two plane connection when pressure is uneven or "о" ring being cut cause leakage; "о" rings uncompacted, elastic deformation caused by insufficient leakage; "о" spigot ring groove 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 rabbet plane for cutting grooves or grinding to reduce the rabbet groove depth, so that "о" rings are flexible enough to deformation (compression should generally be between 0.35-0.65mm).For the use of oil and rubber, wool felt, soft steel cardboard, combined sealing gasket or sealant leaking pipe joints, whether any material, you should first check the seals for damage, deformation, aging and rough through the large, etc. and then take the appropriate measures.

Hydraulic fittings system which causes abnormal pressure

Hydraulic fittings system pressure anomalies generally reserved for system piping design a lot of pressure measuring points , measured using the pressure gauge readings , and comparative analysis to determine the cause of the normal abnormal pressure of the Hydraulic ferrules components. Velocity anomalies individually adjustable throttle, variable speed control valve and variable pump body , corresponding to the test speed of the actuator range values ​​, comparative analysis with the design values ​​can be determined . Each movement abnormalities switching valve, observe the actions related to the implementation of components status is normal , you can find out the abnormal valve, then check the action sequence and stroke control , identify exception handling . Other abnormal vibration, noise , oil spills, heat , etc., do not be turned off , it should be exactly two see three observation and analysis process to determine abnormality .Integrated hydraulic fittings used in Hydraulic adapters fluid mechanics knowledge , theoretically hydraulic fittings and hydraulic components for hydraulic circuits any failure analysis. The following example will be explained the general failure of hydraulic fittings lookup process . Fault Name : hydraulic pump cavitation ; failure phenomenon : vibration, noise , cavitation ; main reasons: the pump suction pressure is lower than the gas separation pressure , or inhaled air . Inference analysis : the use of the energy equation and the continuity equation for flow pump suction process analysis, determine the hydraulic fittings hydraulic pump failure reasons: oil level is too low --- pressure tank vents clogged pump inlet flow rate is too high.

Metal hose fittings and technical knowledge

With the rapid development of modern industry and the mutual penetration of various disciplines, metal hose in the machinery manufacturing, petrochemical, instrumentation, and is widely used on various projects. Nearly three decades, it has expanded used in aerospace, aviation, nuclear power, shipbuilding, electronics and new construction and other industrial sectors, a modern engineering technology indispensable accessory, plays a prominent role.In China, it appears the early fifties the most original metal hose, which is based on the strip is wrapped around the body of the bellows. However, it is developing very fast, after five years or so, we have gone Hydraulic adapters  through other countries traveled nearly a hundred years. Currently, we have been able to produce some reached the international advanced level of metal hose. However, due to technical exchange and standardization issues, a number of technical personnel in the field of design of the structural characteristics of modern metal hose, performance indicators is not very clear, resulting in a lot of new metal hose should use the occasion still use those structures in the form of relatively old metal hose, rubber tubes and plastic tubes. Universal metal hose technical knowledge, is to enable more people to become familiar with and master the knowledge of modern metal hose for wider and more reasonable to use it.

Corrosion-resistant stainless steel hose excellent main function

Metals and oxygen in the reaction atmosphere in the surface oxide film. In plain carbon steel iron oxide formed on inheritance oxidation, rust continues to expand, the ultimate formation of holes. You can use paint or oxidation-resistant metal (eg, zinc, nickel and chromium) plating to ensure the steel surface, but, as people know, this protection is only a film. If the protective layer is damaged, the following steel began to rust. Corrosion resistance of stainless steel hose depends Hydraulic tube fittings content, if the amount of chromium added to 10.5%, the steel is resistant to atmospheric corrosion performance increased significantly, but higher chromium content, while still being progressive erosion resistance, but not significant. The reason is of steel with a chromium alloying treatment, the change in the type of surface oxide became similar to pure chromium metal oxide formed on the surface. This tight adhesion of chromium-rich oxide protective surface to prevent further oxidation. This thin oxide layer, through which you can see the surface of the natural luster of stainless steel, the stainless steel has a unique surface. Moreover, if the surface is damaged, the exposed surface of the steel, and self-repair reaction atmosphere, re-formation of this "passive film" Inheritance protective effect. Therefore, all of the stainless steel tube used have a common characteristic, that chromium content of 10.5% or more.

DPJ externally threaded metal hose connector termination structure and characteristics

DPJ externally threaded metal hose connector termination structure and characteristics:* DPJ external thread termination metal hose connector is JB/GQ0552-83 D95-5 metal connectors of extension products;
* MetalHydraulic hose fittings made ​​of zinc alloy die-casting, zinc plated, brushed, or chrome; compact, non-porous, high strength. Reliable connection with metal hose, aesthetic appearance;
* This termination type metal connector is used to connect the metal hose on the straight line connecting the cabinet member;
* Adapter Metal Hose: JS type, JSH type, JSB type, JSHG type;
* Recommended use imperial or metric threaded metal hose connector metal joints;
* Can be customized non-standard metal hose joints and special metal joints.

DKJ card sets of metal joint structure and characteristics

DKJ card sets of metal joint structure and characteristics:
* DKJ card sets metal hose connector, can non-threaded steel pipe and hose connections, save the threading process, you can simply screw into;
* Metal Hydraulic pipe fittings  made ​​of zinc alloy die-casting, zinc plated, brushed, or chrome; compact structure, high strength. Steel and metal hose connection, reliable, attractive appearance;
* This card sets the metal connector is used to connect to the metal hose pipe without threaded over;
* Adapter Metal Hose: JS type, JSH type, JSB type, JSHG type;
* Adapter Pipe: thin steel wire tube, black, galvanized iron pipes (water, gas pipes);
* Use metal connector DKJ card sets, please note the connection pipe hose specifications, dimensions.

Such maintenance so bright as new faucet

Buy a favorite bathroom faucet, how to properly use and maintain, is that many users feel headaches and nerve-racking thing. In fact, as long as the installation, use and maintenance of the correct well, tap the actual life can continue for a long time and can remain bright as new. 1, to please experienced and qualified professionals in construction and installation. Installation, the faucet should try not to bump with a hard object, not to cement, glue residue on the surface to avoid damaging the surface gloss coating. Pay attention to the pipes installed after the debris removal Hydraulic tube fittings tap. 2, in the pressure of not less than 0.02mpa (ie 0.2kgf/cm2) in the case, in use for some time, if found out of water is reduced, or even turn off the water heater's phenomenon, can be at the head of the outlet gently unscrew the screen cover, remove impurities, generally can be restored as ever.3, water taps do not overexert, gently turn to homeopathy. Even the traditional style taps, nor do they need a lot of effort to twist die. Especially not to handle or use as a handrail to support. 4, the shower bathtub faucet metal hose should be kept natural stretch state, do not, do not be coiled in the faucet. Meanwhile, in use or not, pay attention to the hose and valve body joints do not form a corner, so as not to break or damage the hose.

Resistant metal hose

Resistant metal hose coal injection system in ironmaking, steelmaking refining furnace and other solid materials to ease the occasion, with ordinary metal hose soon frayed, Hydraulic hose fittingsHydraulic hose fittings manufactured using wear resistant stainless steel corrugated hose advanced technology from developed, proved through practice, high-speed flow in the pipe body particle abrasion, long service life.
Wear-resistant metal hose pipe body using multi-layer composite structure, followed by heat from outside to inside layer of asbestos cloth, wire mesh layer, a metal layer and a trapezoidal cross-section bellows wound metal hose layer. Its layers and hoop ends welded together tight combinations, hose quick connector used between the body. The metal hose better solution because partial burning of the surface and the inner tube wear two major problems affecting the service life of metal hose, metal hose and compared to similar existing product life greatly improved, the relative cost of production significantly reduced iron plant particularly suitable application technique used in pulverized coal injection.

The role is a hose

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 steel Hydraulic hose fittings hose, 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.

Country analysis of metal hose industry cluster advantages

Industrial clusters as a form of industrial organization, both to avoid the "integration" and caused a large group management and agency costs too high, but also avoid the long-distance exchange transaction costs and lead to the problem of high cost of logistics . 1, is conducive to the depth of the division of labor among enterprises, but also beneficial to the depth of the division of labor and the spirit, helping improve efficiency, is conducive to technological innovation. In this industrial cluster metal hose, business models are generally "core competencies plus outsourcing." Hydraulic tube fittings firm will be fully funded entirely concentrate to do their most advantageous that point, this point made ​​the country's most expensive, best, and even the world's most expensive, best. This is mostly the company's core capabilities. Other work, including other parts of the production, product design, sales and other related businesses, are outsourced to other specialized companies to complete. In this way, each product is a summary of a number of core competence.1, industrial clusters help to save the cost of trading two industrial clusters favorable industry and professional market mutual promotion three industrial clusters easier to stimulate the sense of competition 4, favorable investment five industry clusters, industry clusters favorable treatment "credit deficit disorder 6, industrial creation of regional clusters favorable brand