Notes

standard introduction<br>
Hydraulic pipelines, simn are listed independently as a result of the 5 major aspects (carbon C, silicon Si, manganese Mn, phosphorus P, sulfur S).

1. Smooth steel pipeline for fluid: GB8163-99

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

3. High stress seamless pipeline for boiler: GB5310-95 (ST45.8- kind).

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

5. Seamless steel pipeline for geological boring: YB235-70.

6. Seamless steel pipe for oil exploration: YB528-65.

7. Seamless steel pipe for petroleum splitting: GB9948-88.

8. Unique smooth pipe for oil drill collar: YB691-70.

9. Seamless steel pipe for automobile fifty percent shaft: GB3088-1999.

10. Seamless steel pipeline for ships: GB5312-1999.

11. Cold-drawn cold-rolled precision seamless steel pipeline: GB3639-1999.

Various alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo steel pipes are divided right into seamless steel pipelines and welded steel pipelines according to different production processes. Seamless steel pipes are smooth steel pipelines made from steel ingots, pipe billets or steel rods perforated.

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

Advantages of hydraulic.

Compared with mechanical transmission and also electrical transmission, hydraulic transmission has the complying with advantages:.

1. air hose fittings of hydraulic transmission can be easily and flexibly set up according to demands.

2. Light weight, tiny dimension, small activity inertia and quick response rate.

3. Practical operation as well as control, which can realize stepless rate law in a vast array (rate regulation range approximately 2000:1).

4. The overload protection can be realized immediately.

5. Usually, mineral oil is utilized as the working medium, the relative moving surface can be lubed on its own, and the service life is long;.

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

7. It is very easy to understand the automation of the maker. When the electro-hydraulic mixed control is adopted, not only a higher degree of automated control procedure can be understood, however likewise remote can be recognized.

Negative aspects of hydraulics.

1. As a result of the large fluid flow resistance and also leak, the efficiency is low. Otherwise taken fittings for hose of appropriately, the leakage will not just infect the website, however may also cause fire and also explosion accidents.


2. As the working efficiency is conveniently affected by temperature level changes, it is not ideal to function under really low or really high temperature level conditions.

3. The manufacturing precision of hydraulic components is high, so the rate is more pricey.

4. As a result of the leakage as well as compressibility of the fluid tool, a rigorous transmission ratio can not be obtained.

5. When the hydraulic transmission fails; the usage as well as upkeep require a greater technological degree, it is not simple to locate out the cause.

Adapter installation.

The pipe needs to not be excessively curved when it is moving or at remainder, nor can it be bent at the origin, yet must start to flex a minimum of 1.5 times its size;.

When the tube is relocated to a severe placement, it should not be pulled also tightly, it ought to hang;.

Try to stay clear of torsional deformation of the hose;.

Keep the hose pipe as much away as feasible from the heat emitting parts, as well as it is essential to install a thermal barrier;.

Stay clear of external damages to the hose pipe, such as lasting friction on the surface area of the exact same component throughout usage;.

There should be assistance parts if the hose's very own weight creates too much contortion.

Pipeline installment.

Before installation, all steel pipes can be pickled initially, specifically the steel pipelines connected to the ferrule kind pipeline joints need to be marinaded initially, and afterwards the ferrule is fastened to the pipe end beforehand;.

All pipe joints must be cleansed with kerosene prior to installment, the O-rings inside ought to be momentarily eliminated for storage space, and after that put on after the official installation;.

Throughout building, maintain the oil ports, pipe joints, pipe ends and also various other openings of pumps, distributors and also various other equipment tidy, and do not enable international items such as water as well as dirt to go into;.

The pipeline shall be stocked a totally free state, and the bonded pipeline will not be by force taken care of and attached by applying excessive radial pressure;.

The oil hole of the bearing seat need to be inspected in advance to see if the inner oil circuit is unblocked as well as if the oil port thread matches the joint.

Pipeline cleaning.

In order to ensure the cleanliness of the lubrication system and supply the bearings of mechanical tools with tidy grease, the pre-installed pipes should be eliminated as well as cleaned. There are 2 types of cleansing: kerosene cleaning as well as pickling.

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

Item. Copper pipes, stainless-steel pipes;.

The steel pipes that have actually been pickled before pre-installation, as well as the inner wall is free of rust and iron scale; 2. The pipe joints that were dirtied throughout the pre-installation; 3. Eliminate the pipelines and also joints that require to be cleansed, and utilize cloth (( It is necessary not to drop woollen).

( 2) Pickling objects and methods.

Object. Steel pipes that have not been marinaded prior to pre-installation; steel pipelines that have actually been marinaded however are now seriously corroded.

Usage tidy water to eliminate the dust on the pipeline; 3. Rinse with clean water For the accessories created in the above procedures, the within of the pipeline need to be cleaned with high-pressure water; 5. In order to successfully dry the pipeline, the pipeline needs to be submersed in warm water or steam dried.



The steel pipes that have been pickled prior to pre-installation, and also the inner wall is cost-free of corrosion and also iron scale; 2. Eliminate the pipelines and joints that require to be cleaned, and also use towel (( It is essential not to lose wool). Usage tidy water to remove the dust on the pipe; 3. Wash with clean water For the accessories produced in the above operations, the within of the pipeline must be washed with high-pressure water; 5. In order to properly dry the pipeline, the pipeline must be submersed in hot water or steam dried out.

Website: http://www.liujin-fittings.com/Hydraulic-pipe-fitting-factory-supply-wholesales-customized-hydraulic-fittings-jic-pd49696763.html