Pre-Insulated Steel Pipe for District Heating
工业采购项目
准备更清晰的 RFQ
请提供以下信息,帮助 RELIA 理解零件要求并与您确认下一步。
- 图纸、样品或参考标准
- 材料牌号和首选工艺
- 尺寸、公差和表面处理
- 应用、目标数量和目的地
生产周期、包装和运输条款将在规格与贸易条件确认后按项目确定。
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InvoicingBy Actual WeightTolerance±1%
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Alloy Or NotNon-AlloyApplicationFluid Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe
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CertificateAPI , ISO 9001Delivery Time8 ~ 14 days
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Outer Diameter219 - 1066 mmSpecial PipeAPI Pipe, Other, EMT Pipe, Thick Wall Pipe
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StandardASTM
This pre-insulated steel pipe uses polyurethane foam in its district-heating product description. The table lists a non-alloy classification and dimensional ranges, without identifying the carrier grade or manufacturing route. Build the enquiry around one documented assembly and its actual heating-system conditions.
Resolve carrier measurements and material identity
Outside diameter is listed as 219–1066 mm, with thickness options of 6–20 mm and lengths of 12 m or 6 m. Confirm which component each range describes. Request carrier diameter, bore and wall, insulation thickness and finished assembly dimensions on the selected drawing.
State how ±1% applies to the relevant measurements and inspection. Obtain the complete steel designation, governing material and dimensional documents, editions, condition, traceability and production records. Generic ASTM and EMT wording does not identify a complete carrier specification or establish the manufacturing route.
Document the foam system and joint continuity
Define polyurethane foam construction, coverage, interfaces and pipe-end details. The source does not specify an outer protective material; agree any required protection independently. Obtain thermal performance evidence with test or calculation conditions, rather than assuming a density, conductivity, service temperature or predicted lifetime.
Specify pipe joining, site insulation and any outer closure as one coordinated detail. Include alignment, inspection and repair criteria, plus transport and storage precautions. Carrier movement and support requirements need to be considered with the proposed layer construction and installation arrangement.
Set the district-heating operating basis
Provide medium composition, pressure, supply and return temperatures, cycling, heat-loss requirements, exposure and route details. District-heating wording alone does not select water, steam or buried installation. Confirm assembly compatibility, verify applicable API/ISO 9001 documents and agree testing, material, production, dimensional and layer records with the quotation.






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