Distance between fixed and sliding supports on the air-conditioning water pipeline
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This post was last edited by li*ch1968 on 2010-12-25 at 18:16. How far apart should fixing and sliding supports be installed on the air conditioning pipeline? Are there any standard documents available for reference? And at what length beyond that do pipes require compensators instead of natural compensation?
I’m not sure if it’s covered in the ashare manual.
The spacing between pipe supports and hangers can be determined using the span table. Both compensators and natural compensation are methods used for compensation. The maximum length of straight sections in thermal pipelines for which no compensators are required is specified in the (\"Design Manual for Thermal Pipelines\", P490). The length of the pipe arms used for natural compensation generally should not exceed 25 meters, with bending stresses not exceeding 80 MPa (\"Design Manual for Thermal Pipelines\", P444). The spacing between supports and hangers is given in the span table (\"Design Manual for Thermal Pipelines\", P476–P478). Tables showing the spacing for fixed supports and hangers in thermal pipelines can be found in the (\"Design Manual for Thermal Pipelines\", P489). The span of pipes can also be calculated according to standards, but it is generally more convenient to use the values provided in the manuals. The \"Design Manual for Thermal Pipelines\" is published by the Machinery Industry Press; an electronic version is available online for download
This is specified in the instructions for each HVAC design drawing; it’s part of the standards. The size is 5 meters for larger ones and 1.2 meters for smaller ones. Of course, this also depends on the material of the pipes – whether they are iron, PVC, or PPR – as well as on the type of hot and cold medium used. There doesn’t seem to be a term for \"compensator\" in HVAC systems; during heating, PPR pipes bend, so some form of protection is needed. But this protection is applied to the pipes themselves, not to the supports, which is different from what you mentioned.