● Pipe layout design and piping should be based on the hydraulic principle diagram, and the hydraulic components, pipe joints and flanges to be connected should be considered

 comprehensively.

● The laying arrangement and direction of the pipeline should be neat and consistent, with clear layers. Horizontal or vertical pipe layout should be used as much as possible. The 

non-parallelism of horizontal pipes should not exceed 2/1000, and the non-verticality of vertical pipes should not exceed 2/400. Use a level to check.

● There should be at least 10mm gap between parallel or cross pipes. Ø The configuration of the pipeline must make it easy to load, unload and repair the pipeline, hydraulic 

components and otherparts. Any section of the pipeline or component in the system should be able to be freely disassembled and assembled as much as possible without 

affecting other components.

● When piping, it must be considered that the pipeline has a certain rigidity and vibration resistance. Pipe supports and pipe clamps should be properly configured. Bent pipes 

should be equipped with supports or pipe clamps near the starting point. Pipes must not be directly welded to supports or pipe clamps.

●The weight of the pipeline should not be borne by valves, pumps and other hydraulic components and accessories, nor should the weight of heavier components be borne 

by the pipeline.

●Effective measures must be taken to prevent stress caused by expansion and contraction of the pipeline.

●Hydraulic system pipes should be cut by mechanical processing methods, and the cut end faces of the pipes must be flat, and burrs, scale, slag, etc. should be removed. 

The cut surface should be perpendicular to the axis of the pipe.

●When a pipeline consists of multiple sections of pipes and matching parts, they should be connected in sequence, and the next section should be configured after the 

assembly of one section is completed, so as to avoid the cumulative error of the last section and the inability to install.

●In order to reduce local pressure loss, each section of the pipeline should avoid local rapid expansion or reduction of the end face, as well as rapid bending.

●The pipe connected to the pipe joint or flange must be a straight pipe, and the length of the straight section should not be less than 2 times the outer diameter of the pipe.

●The application of hoses is mainly considered in the following situations: between movable components of equipment, where replacement parts are easy to replace, 

and where mechanical vibration

 or noise transmission is suppressed.

●When installing the hose, be sure to pay attention not to cause additional stress, distortion, sharp bending and friction to the hose and the joint.

●Before installing the hose into the system, the inner cavity of the hose and the joint should be cleaned.

●Before installing the hard pipe into the system, the hard pipe assembly should also be flushed. Welded pipes should be pickled first and then flushed, and non-welded 

pipes can be flushed directly.

●Pipe laying should not affect the operation of the main engine, be safe and reliable, and facilitate work, observation and maintenance.

●Pipe laying should be horizontal and vertical, neat and beautiful, with as few turns and small angle bends as possible, and large arcs should be used as much as 

possible to reduce oil flow resistance.

●When conflicts occur during installation, small pipes should give way to large pipes, and low-pressure pipes should give way to high-pressure pipes.

●The joints of parallel pipes should be installed staggered to avoid affecting installation and disassembly.

●In order to facilitate disassembly and cleaning of pipes, flexible joints should be appropriately considered, but they should be used as little as possible to reduce 

the possibility of leakage.

 This article is reproduced from:

Public Account: Hydraulic Brother Hydraulic Things

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