Notes

standard intro<br>
Hydraulic pipes, simn are provided individually due to the five significant aspects (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Seamless steel pipeline for fluid: GB8163-99

2. Smooth steel pipe for central heating boiler: GB3087-1999

3. air hose fittings for central heating boiler: GB5310-95 (ST45.8- kind).

4. High-pressure seamless steel pipelines for fertilizer tools: GB6479-1999.

5. Seamless steel pipe for geological drilling: YB235-70.

6. Smooth steel pipeline for oil boring: YB528-65.

7. Smooth steel pipeline for petroleum cracking: GB9948-88.

8. Unique seamless pipeline for oil drill collar: YB691-70.

9. Smooth steel pipe for vehicle fifty percent shaft: GB3088-1999.

10. Smooth steel pipe for ships: GB5312-1999.

11. Cold-drawn cold-rolled precision smooth steel pipe: GB3639-1999.

Various alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo steel pipelines are divided right into seamless steel pipelines as well as bonded steel pipelines according to various manufacturing processes. fitting copling air hose 1" fnpt are smooth steel pipelines made from steel ingots, pipe billets or steel poles perforated.

Hydraulic pipeline weight formula: [( external diameter-wall density) * wall thickness) * 0.02466= kg/m (weight per meter).

Advantages of hydraulic.

Compared to mechanical transmission as well as electric transmission, hydraulic transmission has the complying with benefits:.

1. Numerous components of hydraulic transmission can be easily and flexibly set up according to requirements.

2. Light weight, small size, tiny activity inertia and also fast reaction speed.

3. Convenient procedure as well as control, which can realize stepless rate guideline in a large range (rate guideline variety as much as 2000:1).

4. The overload defense can be recognized instantly.

5. Usually, mineral oil is used as the working tool, the family member relocating surface area can be oiled by itself, and also the solution life is long;.

6. It is very easy to recognize direct activity/.

7. It is easy to recognize the automation of the machine. When the electro-hydraulic mixed control is taken on, not just a higher level of automated control process can be recognized, but additionally push-button control can be recognized.

Downsides of hydraulics.

1. As a result of the huge fluid flow resistance as well as leak, the performance is low. If not taken care of properly, the leakage will not just contaminate the website, however may additionally trigger fire and explosion accidents.

2. As the working performance is quickly influenced by temperature changes, it is not appropriate to function under really reduced or extremely high temperature level conditions.

3. The manufacturing accuracy of hydraulic elements is high, so the rate is extra costly.

4. Because of the leak as well as compressibility of the liquid medium, a strict transmission ratio can not be gotten.

5. When the hydraulic transmission fails; the usage and also upkeep need a greater technological degree, it is not simple to discover out the cause.

Connector installment.

The pipe should not be exceedingly bent when it is moving or at remainder, neither can it be bent at the root, however should begin to bend at the very least 1.5 times its diameter;.

When the tube is relocated to a severe position, it ought to not be pulled too tightly, it ought to hang;.

Attempt to stay clear of torsional contortion of the tube;.

Maintain the hose pipe as far as feasible from the warm radiating parts, and also it is essential to set up a thermal barrier;.

Stay clear of external damages to the tube, such as lasting friction externally of the exact same element throughout use;.

If the hose's own weight triggers extreme contortion, there should be support components.

Pipeline installment.

Prior to installment, all steel pipelines can be marinaded first, specifically the steel pipelines attached to the ferrule type pipeline joints must be pickled initially, as well as then the ferrule is fastened to the pipeline end beforehand;.

All pipe joints need to be cleaned up with kerosene prior to installation, the O-rings inside need to be momentarily eliminated for storage, and afterwards put on after the official installment;.

During building and construction, maintain the oil ports, pipe joints, pipeline ends and also other openings of pumps, representatives as well as other tools clean, and also do not enable foreign objects such as water as well as dust to enter;.

The pipe will be stocked a totally free state, and also the welded pipe shall not be forcibly taken care of and also linked by using excessive radial force;.

The oil opening of the bearing seat must be inspected in advance to see if the interior oil circuit is unblocked and if the oil port string matches the joint.

Pipeline cleaning.

In order to ensure the cleanliness of the lubrication system as well as supply the bearings of mechanical tools with clean oil, the pre-installed pipes should be eliminated and also cleaned up. There are two types of cleansing: kerosene cleaning and also pickling.

( 1) Things as well as methods of kerosene cleansing.

Things. Copper pipelines, stainless-steel pipes;.

approach. 1. The steel pipes that have been marinaded prior to pre-installation, as well as the internal wall is devoid of rust and also iron range; 2. The pipe joints that were soiled during the pre-installation; 3. Remove the pipes and joints that require to be cleaned, and use fabric (( It is necessary not to lose wool). Clean the inside of the tube with kerosene, saturate both ends and also joints in kerosene to tidy, then layer the within of television with engine oil or full of grease, and also seal both ends for installation; 4. After cleaning, there should be no visible pollutants. (Such as iron filings, coarse impurities, welding slag, etc), pay special attention to the welding slag on the internal wall surface of the weld should be completely cleansed.

( 2) Pickling methods and items.


Item. Steel pipes that have actually not been pickled prior to pre-installation; steel pipes that have been pickled however are now drastically corroded.

Usage tidy water to eliminate the dust on the pipe; 3. Rinse with clean water For the accessories generated in the above operations, the within of the pipe need to be cleaned with high-pressure water; 5. In order to effectively dry the pipe, the pipe must be submersed in hot water or steam dried.



The steel pipelines that have actually been marinaded before pre-installation, and also the internal wall surface is totally free of corrosion as well as iron range; 2. Remove http://www.liujin-fittings.com/China-professional-hydraulic-fittings-maker-hydraulic-tees-adapter-pd43475763.html and also joints that need to be cleaned up, as well as utilize cloth (( It is needed not to shed wool). Usage tidy water to remove the dirt on the pipe; 3. Wash with tidy water For the attachments generated in the above operations, the inside of the pipeline should be washed with high-pressure water; 5. In order to effectively dry out the pipe, the pipe needs to be immersed in hot water or steam dried out.

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