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Hydraulic pipes, simn are provided separately due to the five major elements (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).1. Seamless steel pipeline for fluid: GB8163-992. Seamless steel pipeline for boiler: GB3087-19993. High stress smooth pipe for boiler: GB5310-95 (ST45.8- type).4. High-pressure seamless steel pipelines for fertilizer tools: GB6479-1999.5. Seamless steel pipeline for geological drilling: YB235-70.6. Seamless steel pipe for oil boring: YB528-65.7. Smooth steel pipeline for oil splitting: GB9948-88.8. Special seamless pipeline for oil drill collar: YB691-70.9. Smooth steel pipeline for vehicle half shaft: GB3088-1999.10. Smooth steel pipeline for ships: GB5312-1999.11. Cold-drawn cold-rolled precision smooth steel pipeline: GB3639-1999.Different alloy pipes 16Mn, 27SiMn?, 15CrMo?, 35CrMo?, 12CrMov?, 20G, 40Cr, 12Cr1MoV, 15CrMo? steel pipes are divided right into seamless steel pipes and also welded steel pipelines according to different manufacturing procedures. Seamless steel pipes are seamless steel pipes made from steel ingots, pipe billets or steel rods perforated.Hydraulic pipe weight formula: [( outer diameter-wall thickness) * wall surface density) * 0.02466= kg/m (weight per meter).Benefits of hydraulic.Compared to mechanical transmission and electric transmission, hydraulic transmission has the following advantages:.1. Various elements of hydraulic transmission can be conveniently as well as flexibly prepared according to demands.2. Lightweight, small size, small motion inertia and also rapid response speed.3. Practical procedure as well as control, which can recognize stepless rate policy in a large range (rate policy variety as much as 2000:1).4. The overload security can be understood immediately.5. Typically, mineral oil is made use of as the functioning tool, the loved one relocating surface area can be oiled by itself, and the service life is long;.6. It is easy to understand direct motion/.<img width="392" src="">7. It is very easy to understand the automation of the device. When the electro-hydraulic combined control is embraced, not only a higher level of automatic control procedure can be recognized, but likewise remote control can be recognized.Disadvantages of hydraulics.1. Because of the big liquid flow resistance as well as leak, the efficiency is reduced. If not handled properly, the leakage will not only infect the site, however may also create fire and surge crashes.2. As the working performance is quickly affected by temperature level changes, it is not ideal to work under extremely low or really high temperature level problems.3. The production accuracy of hydraulic elements is high, so the rate is a lot more pricey.4. Due to the leakage and also compressibility of the liquid medium, a strict transmission ratio can not be acquired.5. It is challenging to find out the reason when the hydraulic transmission stops working; the usage and upkeep call for a greater technological level.Connector installation.The hose pipe ought to not be excessively bent when it is moving or at remainder, neither can it be bent at the origin, however need to start to flex at the very least 1.5 times its size;.When the tube is relocated to a severe setting, it should not be pulled as well tightly, it must be loosened;.Try to avoid torsional contortion of the hose pipe;.Maintain the pipe as away as possible from the warmth emitting parts, and it is essential to mount a thermal barrier;.Avoid exterior damages to the pipe, such as lasting friction on the surface of the same part during use;.There should be support components if the pipe's very own weight causes too much contortion.Pipe setup.Before installment, all steel pipelines can be marinaded first, especially the steel pipes linked to the ferrule type pipeline joints need to be marinaded initially, as well as after that the ferrule is attached to the pipeline end beforehand;.All pipe joints should be cleaned up with kerosene before installment, the O-rings inside must be briefly removed for storage space, and also after that place on after the official installment;.During building and construction, keep the oil ports, pipeline joints, pipeline ends as well as various other openings of pumps, representatives and various other equipment tidy, and also do not enable international objects such as water as well as dirt to get in;.The pipeline will be stocked a totally free state, and the bonded pipeline will not be forcibly repaired and also linked by using excessive radial force;.The oil hole of the bearing seat need to be examined in breakthrough to see if the interior oil circuit is unblocked and if the oil port thread matches the joint.Pipe cleaning.In order to guarantee the tidiness of the lubrication system and also provide the bearings of mechanical tools with clean oil, the pre-installed pipes must be removed and cleaned up. There are 2 types of cleaning: kerosene cleaning and also pickling.( 1) Things and also approaches of kerosene cleaning.Things. Copper pipes, stainless-steel pipelines;.The steel pipelines that have been marinaded before pre-installation, and also the inner wall is complimentary of rust and iron range; 2. The pipe joints that were soiled throughout the pre-installation; 3. Remove the pipes as well as joints that require to be cleaned up, and utilize cloth (( It is required not to drop wool).( 2) Marinading items and methods.Item. Steel pipelines that have actually not been marinaded prior to pre-installation; steel pipes that have actually been marinaded but are currently significantly corroded.approach. 1. Make use of a degreasing agent to get rid of the grease adhering to the pipe; 2. Usage http://www.liujin-fittings.com/Fine-appearance-factory-directly-dkol-hydraulic-hose-end-fittingschina-hydraulic-hose-fitting-pd40936763.html to remove the dust on the pipeline; 3. Eliminate the rust spots on the pipeline wall surface, rolled iron filings, etc in the pickling service; 4. http://www.liujin-fittings.com/tractor-hydraulic-fittings-pd48276763.html with clean water For the add-ons produced in the above operations, the within of the pipe must be cleaned with high-pressure water; 5. Reduce the effects of the acid remedy continuing to be on the pipeline with lye; 6. In order to efficiently dry out the pipeline, the pipe ought to be immersed in hot water or steam dried. Make the pipelines completely dry; 7. Check the pickled pipes to see if they are clean; 8. Seal the opening of the pipeline with plastic or plastic tape right away after pickling to avoid foreign issue and dampness from intruding [1]The steel pipelines that have been marinaded prior to pre-installation, and also the internal wall is totally free of corrosion as well as iron scale; 2. Get rid of the pipelines and joints that require to be cleansed, as well as utilize fabric (( It is needed not to shed wool). Use clean water to eliminate the dirt on the pipe; 3. Wash with tidy water For the attachments created in the above procedures, the within of the pipe ought to be washed with high-pressure water; 5. In order to efficiently dry out the pipeline, the pipe needs to be immersed in warm water or vapor dried out.