Card sets of pipe joints assembly

( A ) . Preloaded ① fittings fittings fittings fittings of the most important aspects of pre-installed , directly affects the reliability of the seal . Generally require a dedicated preheater . Small diameter connector can be pre-installed in a vise . In practice, with a connector as the parent , the nut , ferrule onto the tube can be pressed . There are card sets straight couplings , sleeve type end through turn heads, ferrule tube fittings and other types . I found that even in the same factory shipment , these types of connector body tapered hole depth is often not the same , the result is caused by a leak , and this problem is often overlooked. The correct approach is , the pipe end what kind of connector body connection ,Jic hydraulic fittingscorresponding connection terminal is preloaded with the same type of connector , so to avoid possible leakage problems . ② pipe end should be flush . After sawing the pipe should be flush grinding wheel and hydraulic hose assemblystools , and deburring , cleaning with high-pressure air to blow before use. ③ 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. ④ preloaded force should not be too large so that the ferrule tube embedded in the outer wall just inside the edge , card sets shall have no deformation . During pipeline connection, then the provisions of the tightening force assembled . ф6-1 card sets tightening force is 64-1 15n, 16фmmr 259n, ф18mm for 450n. If the pre- deformed when the card holder will lose the seal.
( Two ) . Prohibit adding sealant filler. It was sealed in order to achieve better results, ferrules, apply sealant , sealant was the result into the hydraulic system , hydraulic tube fittings components causing blockage damping hole fault .
( III). Connecting pipe should be sufficient deformation of the tube margin , to prevent the tube subjected to tensile strength .
( Four ) . Connecting pipe should avoid subjecting it to lateral forces , lateral forces caused Mifengbuyan over the General Assembly .
( Five ) . Connecting pipe should be a good one , to avoid multiple disassemble , otherwise it will seal performance deteriorated.

Fittings prevention and installation methods

Fittings prevention and installation methods In the hydraulic system , both the metal pipe fitting , or hose fittings , there are prone to leakage problems . For fittings fittings fittings fittings, mostly due to pipeline subject to greater external force or impact force, the card sets loose or deformed face caused by leaking pipe , you should check whether the card holder out of round , edge whether the defect , Hydraulic pipe fittings end is 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 malehydraulic hoses 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 outer -ring 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 is cut resulting in leakage.

Flared fittings Appearance process

Appearance of the product is also very important, flared fittings, too. Rough coarse hair hose during use is bring a lot of inconvenience, such as glitches, injured his hand how to do, affecting the appearance of the new factory, the customer that the product is not worth the price of how to do, export expansion pipe joints products, foreign clients do not recognize how to do, there will be many complicated problems. Therefore, we should pay attention to the appearance of products, customers see first is the appearance, so we handle flared fittings appearance.hydraulic fittings appearance processing recommendations are as follows:
1, the hoses in polishing, painting problems when handling.
2, tube hydraulic flanges hinge bolt final polishing, pickling, etc.
3, hydraulic flange welding process technical problems.
4, stainless steel hose problems during the packaging process.
5, and other related operations scratching and so on.

Welded pipe joints for oil pipeline system for the medium

Welded pipe joints Uses and characteristics junction 1 . Welded pipe joints Uses: Welded pipe joints for oil as the medium of piping systems, piping systems for water and air pressure are also used . Working pressure of less than or equal 32Mpa.2. Hydraulic pipe fittings : welded pipe joints has a simple structure , easy to manufacture , sealing , etc., but when installing large welding , welding quality requirements .3 . welded pipe joints structure: welded pipe joints which consists of fitting body nuts and takeover components. took over the joint between the body and the O- ring seal when screwed into the body when the connector body , metric fine thread and cone pattern. and the use of combined sealing gaskets. takeover pipes and piping systems welding hydraulic fittings manufacturing standards 1 , for fluid power and general use metal fittings O-ring hydraulic tube fittings 2 plane , cone seal welded straight couplings 3 , cone seal welded through 55 ° non- sealed tube threaded pipe joint 4 , cone seal welded through 55 ° sealing pipe thread fittings 5 , cone seal welded through 60 ° sealing pipe thread fittings 6 , 90 ° cone seal welded elbow

Metal hose is an important engineering technology connecting member

Metal hose is an important engineering technology connecting member by corrugated flexible tube , a combination of nets and fittings . In a variety of gas, fluid piping systems as well as length, temperature , position and angle compensation systems as compensation components, sealing elements , connecting elements and a damping element , used in aerospace , petrochemical , mining , electronic, mechanical shipbuilding, medical health , textile electronics, energy and construction fields.Austenitic stainless steel Hydraulic pipe fittingsmaterial or materials required by the user , with excellent flexibility, corrosion resistance, high temperature resistance (-235 ℃ ~ +450 ℃), high pressure resistance ( up to 32MPa), the tube path can be connected in any direction , for temperature compensation, and absorb vibration and reduce noise , change the medium conveying direction , remove pipe or between pipes and the mechanical displacement devices , double flange metal corrugated hose to a displacement , vibration a variety of pumps, valves and other flexible joints is particularly applicable.
Hose metal hose is installed in the pressure line of the main pressure parts , while the bellows from the sheath effect, according to the size of pipeline pressure and locations , you can select one or more layers of stainless steel wire or steel for weaving, dawn brand hose pressure range is generally PN0.6-32.0Mpa. Up to 42.0MPa. The production of the main part of the material hose is the use of austenitic stainless steel , thus ensuring the hose excellent in heat resistance and corrosion resistance of the hose very wide temperature range , is -196-600 degrees to hose by pipelines through the media choose to apply corrosive stainless steel grades, the corrosion resistance of the hose can be guaranteed . Corrugated metal Hydraulic hose fittings good flexibility, fatigue resistance, high pressure, high temperature resistance, corrosion resistance , and many other features, it is relative to other hoses ( rubber, plastic hose ) much higher lifetime would therefore it also has a high overall economic efficiency . With the development of modern industry , for high temperature, high pressure hose corrugated metal demand is also getting bigger . Hose Scope: need fully flexible pipes, to prevent vibration premises piping for steam, gas , air, heavy oil, petroleum, chemical -pharmaceutical etc apply.

Raw materials for metal hose metal hose production enterprises is crucial

Raw materials for metal hose metal hose production enterprises is crucial is to ensure product quality metal hose basis . However, with the metal hose increasingly fierce competition in the market , there are always some mercenary manufacturers or unscrupulous traders ,Hydraulic adapters will shoddy products to market , even if some of the regular manufacturers , due to their own loopholes in management or other reasons, may also make Some low-quality products into the market. These inferior products used in the production process, constitute a significant quality or safety problems, has become the product quality accidents or safety incidents culprit. In addition, the procurement of raw materials back if not properly controlled , but also directly affect the quality of products . How to prevent shoddy or deterioration of raw materials into the production line, every business needs to study. Experts believe that the metal hose business enterprise to control the quality of raw materials procurement , to ensure product quality and safety , from the raw material supplier evaluation, selection , strengthen inspection before storage of raw materials , improve storage management to control quality and other aspects .

Corrosion resistance of stainless steel hose depends on the content of chromium

Hose mainly divided into: stainless steel hose, metal hose, corrugated hose, plastic hose Corrosion resistance of stainless steel hose depends on the chromium content, if the amount of chromium added to 10.5%, the atmospheric corrosion resistance of steel significantly increased, but the higher chromium content, while still being improved corrosion Hydraulic pipe fittings resistance, but obvious. 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 of 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 steel surface and atmospheric reactions will self repair, re-formation of this kind of "passive film" and continue to play a protective role.

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 Hydraulic hose fittings braided hoses installed in the pressure line of the main pressure parts , while the protective effect of the metal hose , 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.

Plastic coated metal hose Major parts of the austenitic stainless steel

Plastic coated metal hose Major parts of the austenitic stainless steel , thus ensuring a plastic coated metal hose excellent heat resistance and corrosion resistance, plastic coated metal hose operating temperature range greatly , as -196-600 ℃, in actual use , according to corrosive media channels to select the appropriate grade of stainless steel , plastic coated metal hose to ensure corrosion resistanceAnnular corrugated plastic coated metal hose was closed annular tubular housing by the ring Hydraulic pipe fittings between waves and wave ripples in series. Annular plastic coated metal hose made seamless pipe or welded pipe forming process . Constrained by the processing methods , compared with spiral corrugated pipe, its single- tube length is usually shorter . Plastic coated metal hose is made of very thin-walled stainless steel seamless or welded congregation plastic coated metal hose through high-precision plastic processing forming . As plastic coated metal tube determines the elastic properties of the silhouette hose has good flexibility and fatigue resistance , making it very easy to absorb deformation of the cyclic loading a variety of sports , particularly in the piping system has the ability to compensate for a large amount of displacement .

Advantages of metal hose industry cluster

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 . 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 ." That each firm will be fully funded entirely concentrate to do their most advantageous that point , this point to make the country the cheapest , best , and Hydraulic ferrules 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 . Industrial clusters help save transaction costsAdvantageous industries and industrial clusters specialized market mutual promotion of industrial clusters to stimulate the sense of competition more favorable treatment industry cluster "credit deficit disorder ," the creation of regional clusters favorable brand