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.

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.

2015年1月10日星期六

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

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

2015年1月7日星期三

The difference between the ordinary hydraulic pipe fittings and joints

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

2015年1月4日星期日

Hydraulic press

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

2015年1月3日星期六

Features soft metal joints

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

2015年1月1日星期四

Pipe joint

The pipe joint is connected with the tool between the pipeline and the pipeline, can be the connection point between components and hydraulic pipe fittings assembly and disassembly. As a significant role in the tube, it is one of the two main components of hydraulic pipeline.
The pipe joint has a wide range, a pipe joint used in general can be divided into two kinds of fittings and hydraulic hose and fittings joint hard tube. If in accordance with the connection pipe joint and pipe to points, hard tube joint with flared type, sleeve type and welding type three, hose connectors are mainly withhold hose joint.
Pipeline of hydraulic system and connection pipe joint are also different, the pipeline is screwed into the end is used in connecting thread. Taper thread by virtue of his vertebrae and the use of PTFE sealing screwing operation of material, is mainly used in low pressure in the hydraulic system. Fine tooth thread sealing effect is very good, is often used in high voltage system, but it requires the use of combination washer or O type ring against the end face of the enclosed work, sometimes use a copper washer, it is more suitable for the connection of pipeline wall is thick, the system consists of a joint body, connecting pipe and a nut. When in use, the joint body is embedded in the target, with the use of said in front of the washer will face seal, between the joint body and taken over by the rubber sealing, sometimes using spherical seal method.
The pipe joint can be connected component belongs to the disassembly assembly type, which in addition to meet the normal steady connection, sealing strong, reasonable size, small pressure loss, good process performance and so on requirements, must also meet the requirements of assembly and disassembly is convenient. Therefore, do not underestimate the small pipe joints, because only it exists to support the existence of the whole hydraulic system.