High pressure hose installation whether metal pipe joint, or /hydraulic hose and fittings connector, are prone to leakage problems, any kind of product the installation process is the most important,is to ensure that the product is installed after the premise of normal use, thus the following should be noticed everybody simple introduction about some high pressure hydraulic hose couplings joint during installation question: (1) tube in the moving or static, cannotexcessive bending, nor in the root bend, at least to start bending at 1.5 times thediameter of the office; (2) hose moved to not pull too tightly extreme position, should be more relaxed; (3) to avoid deformation hose (torsion; 4) hose as far away as possible from the heat radiation member, necessary fashion insulation board; (5)should avoid hose external injury, such as isomorphism parts use long-term frictionsurface; (6) if the hose weight caused by excessive deformation, should support.
hydraulic tube fittings,hydraulic hose,hydraulic fittings 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 "tapered cylindrical ---" sleeves.
2015年2月18日星期三
2015年2月12日星期四
Difficulties and challenges in the development of stainless steel metal hose industry
Core Tip: Stainless steel metal hydraulic hose plays an important role in modern industry, used in civilian areas are also many. Under the new situation, the industry is facing many difficulties and challenges, major enterprises
Stainless steel metal hydraulic hose and fittings plays an important role in modern industry, used in civilian areas are also many. Under the new situation, the industry is facing many difficulties and challenges, the major companies have demonstrated a positive attitude to deal with.
1, technical improvements and R & D capabilities further enhanced.
A accelerate industrial innovation system, promote the development of stainless steel metal hose and industrial applications;
B development of environmentally friendly production and recycling economy, the implementation of national and industry energy conservation objectives, tasks, resources and environmental constraints ease;
C promote stainless steel metal hose industry in fiber, high-end equipment, energy saving and environmental protection, brand marketing and other aspects of national strategic emerging industries, cultural industries combined, especially prominent stainless steel metal hose products in new materials, new energy, energy saving and environmental protection strategy The new innovations in the field of development and application of optical fiber industry closely integrated development model.
2, property conscious. Government departments vigorously outreach intellectual knowledge and improve awareness of intellectual property stainless steel metal hose SMEs. Conduct special training, training for stainless steel metal hose IPR SME managers. Counseling on patents, patent agents, patent and patent warning service stainless steel metal hose SME activities, fostered a number of stainless steel metal hose SMEs proprietary advantage, improve industry SME creation, utilization, protection and management of intellectual property rights ability.
3, improve the quality and standard management. SMEs to carry out activities in the industry's commitment to quality, build quality and integrity of the system, to improve the quality level of integrity and self-discipline. Strengthening SME brand building guide, stainless steel metal hose clothing SMEs to enhance brand value and provide technical support. SMEs to actively promote the industry standard of good conduct business activities to create and improve the management level of standardization.
Development of stainless steel metal hose industry enterprises and governments to be joint action, in the government's macro-control of the overall situation of the industry, the difficulties and challenges will be transformed into an effective driving force for development.
Stainless steel metal hydraulic hose and fittings plays an important role in modern industry, used in civilian areas are also many. Under the new situation, the industry is facing many difficulties and challenges, the major companies have demonstrated a positive attitude to deal with.
1, technical improvements and R & D capabilities further enhanced.
A accelerate industrial innovation system, promote the development of stainless steel metal hose and industrial applications;
B development of environmentally friendly production and recycling economy, the implementation of national and industry energy conservation objectives, tasks, resources and environmental constraints ease;
C promote stainless steel metal hose industry in fiber, high-end equipment, energy saving and environmental protection, brand marketing and other aspects of national strategic emerging industries, cultural industries combined, especially prominent stainless steel metal hose products in new materials, new energy, energy saving and environmental protection strategy The new innovations in the field of development and application of optical fiber industry closely integrated development model.
2, property conscious. Government departments vigorously outreach intellectual knowledge and improve awareness of intellectual property stainless steel metal hose SMEs. Conduct special training, training for stainless steel metal hose IPR SME managers. Counseling on patents, patent agents, patent and patent warning service stainless steel metal hose SME activities, fostered a number of stainless steel metal hose SMEs proprietary advantage, improve industry SME creation, utilization, protection and management of intellectual property rights ability.
3, improve the quality and standard management. SMEs to carry out activities in the industry's commitment to quality, build quality and integrity of the system, to improve the quality level of integrity and self-discipline. Strengthening SME brand building guide, stainless steel metal hose clothing SMEs to enhance brand value and provide technical support. SMEs to actively promote the industry standard of good conduct business activities to create and improve the management level of standardization.
Development of stainless steel metal hose industry enterprises and governments to be joint action, in the government's macro-control of the overall situation of the industry, the difficulties and challenges will be transformed into an effective driving force for development.
2015年2月9日星期一
Range hydraulic flanges flange joint very broad
Range hydraulic flanges flange joint very broad, flange rubber fittings, flanges expansion joints, flanges dowel joints, flange hose fittings and other collectively referred to as flange joints, flange joints called to say its connection by flange connections, there are a variety of materials. Advantages Hydraulic flanges are: small size, light weight, good flexibility, easy installation and maintenance, can hydraulic flanges lateral, axial, angular displacement, from the pipes of different heart, not parallel flange installation restrictions, can reduce the structural work pass noise, strong vibration absorption capability. Advantages flange hydraulic flange fittings joints is: when the outside temperature changes, the tube allows free expansion pipeline capacity within telescopic range, locking telescopic amount, to ensure safe operation of the pipeline. Transmission Joint Flange advantage is: can effectively compensate and mitigate pipeline and Blind thrust, but also easy to pump hose connector flange advantage is: has good flexibility and fatigue resistance, making it very easy to absorb various sports deformation cyclic loading, especially the ability to compensate for the large amount of displacement in the piping system.
2015年2月6日星期五
Hydraulic hose assembly is commonly used in the hydraulic system an auxiliary device
Features Uses: High pressure hydraulic hose assembly is normally provided by a liquid-resistant synthetic rubber inner layer, middle layer, Ⅰ to Ⅵ layer of steel wire braid reinforcement, and weather-resistant with excellent performance synthetic rubber cover. Mainly used in hydraulic hose assembly support mine, oil field exploitation, suitable for construction, lifting and transport, metallurgy, forging, mining equipment,hydraulic hose assembly , injection molding machinery, agricultural machinery, machine tools and various industrial sectors mechanization and automation in the hydraulic system has a certain pressure and temperature of petroleum (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) liquid, water-based liquids (such as emulsion, oil-water emulsion, water), gas and liquid transmission and other fields. Hose assembly, connector means to provide full hydraulic hose fittings and supply solutions for the specified operating conditions. Including hose (or hard pipe), seals, connecting accessories (such as fittings, flanges, etc.). Factors affecting the use of a lot of hose assembly, only in accordance with the conditions and the correct selection of hose fittings, hose in order to ensure that the use of reliability and economy.Hydraulic hose assembly is commonly used in the hydraulic system an auxiliary device. Hose (hose) assembly is an auxiliary hydraulic system commonly used.
2015年1月22日星期四
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.
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.
2015年1月16日星期五
Pressure test and pressure resistance metal hose introduction!
Core Tip: Chinese net hydraulic hose fittings metal hose is an important part of modern industry. Wire and cable protection tube metal hose used for wire, cable, automated instrumentation signals and civilian shower hose specifications from 3m
Metal ///hydraulic hose couplings/// is an important part of modern industry. Metal hose used for wire, cable, wire and cable protection tube and civilian shower hose automated instrumentation signal specifications from 3mm to 150mm. Small caliber metal hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler of the sensing circuit protection, industrial sensor circuit protection.
Metal hose needs to be pressure test, pressure test, also known as strength test, performance test are safe. The test pressure of 1.5 times the nominal pressure, test pressure medium is pure water, the chloride ion content should not exceed 25ppm. When the pressure test, each product must be carried out. Using a manual or electric pump pressure test, pressure test typically 1.5 to 4 times the available pressure range test gauge, or equivalent efficacy stress testing equipment, the test, the specimen tube is placed flat, one end of the mounting strap There exhaust valve plug, the other end and test pump outlet pipe connected to the water into the tube, discharged into the air, the exhaust valve closed, and then slowly increase the pressure to the required test pressure, keeping the pressure 5min, check style situation, leaks. Corruption and other forms of abnormal failure occurs. Qualified requirements do not allow leaks or signs of damage, such as failure modes appear abnormal. Qualified requirements do not allow leakage or bad signs and other forms of abnormal failure occurs.
Pressure hose as a flexible metal tube attached to the pressure liquid delivery system, to compensate for mutual displacement pipe or machine, the device connecting terminal, to absorb vibration energy, can play a vibration, noise and other effects, have good flexibility, light weight, corrosion resistance, fatigue resistance, high temperature and many other little. The Company stainless steel metal hose (bellows) Division production of stainless steel metal hose, metal hose, stainless steel flexible joints, the use of imported SUS304 (0Cr18Ni9) SUS316 (0Cr17Ni12Mo2) and SUS316L (00Cr17Ni14Mo2) material. One stainless steel wire braided hose, fluid delivery metal bellows, stainless steel pump even damping hose, stainless steel fire hose, stainless steel bellows, metal hose gas machinery in full compliance with national industry standards. Products with good flexibility, corrosion resistance, fatigue resistance, high temperature, noise damping, sealing strong, long life and other advantages. Widely used in textile, chemical, printing and dyeing, petroleum, chemical, steel, gas, air conditioning, automotive, fire, urban water supply, construction, metallurgy and petrochemical.
Metal hose is extremely thin-walled seamless or welded stainless steel tube through the public high precision plastic processing forming. Because of the elastic properties of the bellows profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb deformation of cyclic loading various sports, especially the ability to compensate for the large amount of displacement in the piping system. Corrugated metal hose pipe in two forms: one is a ring of metal hose, metal hose spiral one is.Metal hose nominal diameter range of DN6-1000mm, length optional. Our company is a bellows, metal hose, non-metallic compensation, soft rubber joints, sleeve compensator, a professional manufacturer of waterproof casing, is a large manufacturing base and backbone enterprises of similar products. End of the tube flange and carbon copper and other accessories, including the use of low-carbon steel welding parts. You can also use the user's requirements and conditions of stainless steel and low-alloy structural steels.Rational design and pipeline segments, each segment is determined using bellows expansion joints in the form and quantity. Determine the working pressure rating to calculate the amount of compensation required for each segment of the pipeline, to determine the nominal amount of compensation for each bellows expansion joint bellows expansion joints selection model based on diameter, pressure rating and compensation amount.
Metal ///hydraulic hose couplings/// is an important part of modern industry. Metal hose used for wire, cable, wire and cable protection tube and civilian shower hose automated instrumentation signal specifications from 3mm to 150mm. Small caliber metal hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler of the sensing circuit protection, industrial sensor circuit protection.
Metal hose needs to be pressure test, pressure test, also known as strength test, performance test are safe. The test pressure of 1.5 times the nominal pressure, test pressure medium is pure water, the chloride ion content should not exceed 25ppm. When the pressure test, each product must be carried out. Using a manual or electric pump pressure test, pressure test typically 1.5 to 4 times the available pressure range test gauge, or equivalent efficacy stress testing equipment, the test, the specimen tube is placed flat, one end of the mounting strap There exhaust valve plug, the other end and test pump outlet pipe connected to the water into the tube, discharged into the air, the exhaust valve closed, and then slowly increase the pressure to the required test pressure, keeping the pressure 5min, check style situation, leaks. Corruption and other forms of abnormal failure occurs. Qualified requirements do not allow leaks or signs of damage, such as failure modes appear abnormal. Qualified requirements do not allow leakage or bad signs and other forms of abnormal failure occurs.
Pressure hose as a flexible metal tube attached to the pressure liquid delivery system, to compensate for mutual displacement pipe or machine, the device connecting terminal, to absorb vibration energy, can play a vibration, noise and other effects, have good flexibility, light weight, corrosion resistance, fatigue resistance, high temperature and many other little. The Company stainless steel metal hose (bellows) Division production of stainless steel metal hose, metal hose, stainless steel flexible joints, the use of imported SUS304 (0Cr18Ni9) SUS316 (0Cr17Ni12Mo2) and SUS316L (00Cr17Ni14Mo2) material. One stainless steel wire braided hose, fluid delivery metal bellows, stainless steel pump even damping hose, stainless steel fire hose, stainless steel bellows, metal hose gas machinery in full compliance with national industry standards. Products with good flexibility, corrosion resistance, fatigue resistance, high temperature, noise damping, sealing strong, long life and other advantages. Widely used in textile, chemical, printing and dyeing, petroleum, chemical, steel, gas, air conditioning, automotive, fire, urban water supply, construction, metallurgy and petrochemical.
Metal hose is extremely thin-walled seamless or welded stainless steel tube through the public high precision plastic processing forming. Because of the elastic properties of the bellows profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb deformation of cyclic loading various sports, especially the ability to compensate for the large amount of displacement in the piping system. Corrugated metal hose pipe in two forms: one is a ring of metal hose, metal hose spiral one is.Metal hose nominal diameter range of DN6-1000mm, length optional. Our company is a bellows, metal hose, non-metallic compensation, soft rubber joints, sleeve compensator, a professional manufacturer of waterproof casing, is a large manufacturing base and backbone enterprises of similar products. End of the tube flange and carbon copper and other accessories, including the use of low-carbon steel welding parts. You can also use the user's requirements and conditions of stainless steel and low-alloy structural steels.Rational design and pipeline segments, each segment is determined using bellows expansion joints in the form and quantity. Determine the working pressure rating to calculate the amount of compensation required for each segment of the pipeline, to determine the nominal amount of compensation for each bellows expansion joint bellows expansion joints selection model based on diameter, pressure rating and compensation amount.
2015年1月13日星期二
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.
2014年12月24日星期三
Hydraulic fast joint
Hydraulic fast hydraulic hose assembly is specially designed for heavy loads, the female connectormaterial for steel chrome plating, the male hose connector and the female joint lock sleeve arehardened, pressure resistance and good fatigue resistance: the use of two seal, no leakage: with self-locking function. This connection is neither a need to use the tool,but also can realize the joint line rapid assembly and disassembly, he has both endsopen closed and two open two structure.
The ends of open close type quick connector comprises a connector body, a one-wayvalve spool, sleeve, a steel ball, a spring and a sealing etc.. The joint body cavity witha one-way valve, when the two connector body are separated from, the check valveunder the action of the spring under the respective extended, and the top pressure in the conical hole of a joint body, so that the path is closed, both sides of the oil in thepipe is closed can not flow in a tube; the two push rod touching when the twoconnector body is connected at front end of the one-way valve spool, valve core is forced to leave the taper hole of the joint body, so that both sides of the pipe is communicated with the oil inside, two joint body with steel ball locking, work, coat in the spring under the ball pressure in the U slot of the joint body, the joint body is connected.
This connection is convenient to disassemble, but the structure is more complex, the local resistance loss is large, suitable for oil and gas as the pipe line system.
The ends of open type quick connector, and both ends are open only in the joint body inner cavity is not a one-way valve closed when the difference between the two separate joint body, not a closed passage. One end of the joint is composed of threepetal type hose joint is connected with a rubber tube, a joint core rubber hose jointdirectly into the fast joint.
2014年11月26日星期三
Pressure test and pressure resistance metal hose introduction!
Core Tip: Chinese net hydraulic hose fittings metal hose is an important part of modern industry. Wire and cable protection tube metal hose used for wire, cable, automated instrumentation signals and civilian shower hose specifications from 3m
Metal hydraulic hose couplings is an important part of modern industry. Metal hose used for wire, cable, wire and cable protection tube and civilian shower hose automated instrumentation signal specifications from 3mm to 150mm. Small caliber metal hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler of the sensing circuit protection, industrial sensor circuit protection.
Metal hose needs to be pressure test, pressure test, also known as strength test, performance test are safe. The test pressure of 1.5 times the nominal pressure, test pressure medium is pure water, the chloride ion content should not exceed 25ppm. When the pressure test, each product must be carried out. Using a manual or electric pump pressure test, pressure test typically 1.5 to 4 times the available pressure range test gauge, or equivalent efficacy stress testing equipment, the test, the specimen tube is placed flat, one end of the mounting strap There exhaust valve plug, the other end and test pump outlet pipe connected to the water into the tube, discharged into the air, the exhaust valve closed, and then slowly increase the pressure to the required test pressure, keeping the pressure 5min, check style situation, leaks. Corruption and other forms of abnormal failure occurs. Qualified requirements do not allow leaks or signs of damage, such as failure modes appear abnormal. Qualified requirements do not allow leakage or bad signs and other forms of abnormal failure occurs.
Pressure hose as a flexible metal tube attached to the pressure liquid delivery system, to compensate for mutual displacement pipe or machine, the device connecting terminal, to absorb vibration energy, can play a vibration, noise and other effects, have good flexibility, light weight, corrosion resistance, fatigue resistance, high temperature and many other little. The Company stainless steel metal hose (bellows) Division production of stainless steel metal hose, metal hose, stainless steel flexible joints, the use of imported SUS304 (0Cr18Ni9) SUS316 (0Cr17Ni12Mo2) and SUS316L (00Cr17Ni14Mo2) material. One stainless steel wire braided hose, fluid delivery metal bellows, stainless steel pump even damping hose, stainless steel fire hose, stainless steel bellows, metal hose gas machinery in full compliance with national industry standards. Products with good flexibility, corrosion resistance, fatigue resistance, high temperature, noise damping, sealing strong, long life and other advantages. Widely used in textile, chemical, printing and dyeing, petroleum, chemical, steel, gas, air conditioning, automotive, fire, urban water supply, construction, metallurgy and petrochemical.
Metal hose is extremely thin-walled seamless or welded stainless steel tube through the public high precision plastic processing forming. Because of the elastic properties of the bellows profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb deformation of cyclic loading various sports, especially the ability to compensate for the large amount of displacement in the piping system. Corrugated metal hose pipe in two forms: one is a ring of metal hose, metal hose spiral one is.Metal hose nominal diameter range of DN6-1000mm, length optional. Our company is a bellows, metal hose, non-metallic compensation, soft rubber joints, sleeve compensator, a professional manufacturer of waterproof casing, is a large manufacturing base and backbone enterprises of similar products. End of the tube flange and carbon copper and other accessories, including the use of low-carbon steel welding parts. You can also use the user's requirements and conditions of stainless steel and low-alloy structural steels.Rational design and pipeline segments, each segment is determined using bellows expansion joints in the form and quantity. Determine the working pressure rating to calculate the amount of compensation required for each segment of the pipeline, to determine the nominal amount of compensation for each bellows expansion joint bellows expansion joints selection model based on diameter, pressure rating and compensation amount.
Metal hydraulic hose couplings is an important part of modern industry. Metal hose used for wire, cable, wire and cable protection tube and civilian shower hose automated instrumentation signal specifications from 3mm to 150mm. Small caliber metal hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler of the sensing circuit protection, industrial sensor circuit protection.
Metal hose needs to be pressure test, pressure test, also known as strength test, performance test are safe. The test pressure of 1.5 times the nominal pressure, test pressure medium is pure water, the chloride ion content should not exceed 25ppm. When the pressure test, each product must be carried out. Using a manual or electric pump pressure test, pressure test typically 1.5 to 4 times the available pressure range test gauge, or equivalent efficacy stress testing equipment, the test, the specimen tube is placed flat, one end of the mounting strap There exhaust valve plug, the other end and test pump outlet pipe connected to the water into the tube, discharged into the air, the exhaust valve closed, and then slowly increase the pressure to the required test pressure, keeping the pressure 5min, check style situation, leaks. Corruption and other forms of abnormal failure occurs. Qualified requirements do not allow leaks or signs of damage, such as failure modes appear abnormal. Qualified requirements do not allow leakage or bad signs and other forms of abnormal failure occurs.
Pressure hose as a flexible metal tube attached to the pressure liquid delivery system, to compensate for mutual displacement pipe or machine, the device connecting terminal, to absorb vibration energy, can play a vibration, noise and other effects, have good flexibility, light weight, corrosion resistance, fatigue resistance, high temperature and many other little. The Company stainless steel metal hose (bellows) Division production of stainless steel metal hose, metal hose, stainless steel flexible joints, the use of imported SUS304 (0Cr18Ni9) SUS316 (0Cr17Ni12Mo2) and SUS316L (00Cr17Ni14Mo2) material. One stainless steel wire braided hose, fluid delivery metal bellows, stainless steel pump even damping hose, stainless steel fire hose, stainless steel bellows, metal hose gas machinery in full compliance with national industry standards. Products with good flexibility, corrosion resistance, fatigue resistance, high temperature, noise damping, sealing strong, long life and other advantages. Widely used in textile, chemical, printing and dyeing, petroleum, chemical, steel, gas, air conditioning, automotive, fire, urban water supply, construction, metallurgy and petrochemical.
Metal hose is extremely thin-walled seamless or welded stainless steel tube through the public high precision plastic processing forming. Because of the elastic properties of the bellows profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb deformation of cyclic loading various sports, especially the ability to compensate for the large amount of displacement in the piping system. Corrugated metal hose pipe in two forms: one is a ring of metal hose, metal hose spiral one is.Metal hose nominal diameter range of DN6-1000mm, length optional. Our company is a bellows, metal hose, non-metallic compensation, soft rubber joints, sleeve compensator, a professional manufacturer of waterproof casing, is a large manufacturing base and backbone enterprises of similar products. End of the tube flange and carbon copper and other accessories, including the use of low-carbon steel welding parts. You can also use the user's requirements and conditions of stainless steel and low-alloy structural steels.Rational design and pipeline segments, each segment is determined using bellows expansion joints in the form and quantity. Determine the working pressure rating to calculate the amount of compensation required for each segment of the pipeline, to determine the nominal amount of compensation for each bellows expansion joint bellows expansion joints selection model based on diameter, pressure rating and compensation amount.
2013年12月16日星期一
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.
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.
2013年12月8日星期日
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.
2013年12月5日星期四
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.
2013年11月27日星期三
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 .
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 .
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.
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.
2013年11月21日星期四
Because plastic coated hose connector design unreasonable phenomenon caused by the failure
Pack plastic hose connector design is essential, which is the core technology of hose assemblies. In actual operation, including plastic Hydraulic adapters connector design is often not a good grasp of various key points, it will cause a variety of failures. Because plastic coated hydraulic hose assemblys connector design failures caused by the unreasonable phenomenon is most prevalent are withheld at the inner tube longitudinal cracks appear and circumferential cracks are two, there are other symptoms, but not common. There are the following two: 1 withhold longitudinal cracks appeared at the inner tube site withhold the end of the sleeve, the inner tube vertical microcracks appear, once a crack running through, it will result in failure of two hydraulic tube fitting assemblies withheld at the inner tube circumferential cracks appear in actual use, and the testing process is also one of the more common symptoms. Inner tube circumferential cracks appeared after the weak link here will become, along with the gradual extension circumferential cracks, often in the form here leak, resulting in failure of hose assemblies.
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.
2013年10月28日星期一
Card sets of pipe joints without welding process
Card sets of pipe joints have a solid connection , pressure capacity, high temperature resistance, good sealing and repeated installation and maintenance easy, safe and reliable. Card sets hydraulic ferrule joints pipe working principle is to insert the card kit, using the ferrule nut , inconsistent card sets, cut hydraulic adapters and seal. It is connected with hydraulic adapter without welding , is conducive to fire, explosion , and high-altitude operations , and can eliminate the evils of welding accidentally . So it is refining, chemical , oil, gas , food, pharmaceutical , instrumentation, piping and other systems controlled device in a more advanced connections . For oil, gas , water, etc. piping connections .
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.
Card sets of pipe joints relationship between the structure
Card sets of pipe joints pipe working principle is to insert the card kit, using the ferrule nut, inconsistent card sets, cut Hydraulic pipe fittings and seal. It is connected with the pipe without welding, is conducive to fire, explosion, and high-altitude operations, and can eliminate the evils of welding accidentally. So it is refining, chemical, oil, gas, food, pharmaceutical, instrumentation, piping and other systems controlled device in a more advanced connections. For oil, gas, water, etc. piping connections.Ferrule tube fitting consists of three parts: the connector body, card sets, nuts. When the card sleeve and nut cap on hydraulic adapter into the fitting body, tighten the nut on the outer end fittings and connector body cone fit evenly inside edge bite into seamless, form an effective seal
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