HDPE Coated Spiral Insulated Steel Pipe for Heating
For industrial sourcing
Prepare a clearer RFQ
Include the details below so RELIA can understand the part and discuss the next step with you.
- Drawing, sample, or reference standard
- Material grade and preferred process
- Dimensions, tolerances, and surface finish
- Application, target quantity, and destination
Production timing, packing, and shipping terms are confirmed for each project after specifications and trade terms are agreed.
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InvoicingBy Actual WeightOiled or Non-oiledNon-oiled
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Section ShapeRoundSurface TreatmentHDPE Coating
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Tolerance±1%Alloy Or NotNon-Alloy
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ApplicationFluid Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil PipeCertificateAPI , ISO 9001
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Delivery Time8 ~ 14 daysGradeP235JH
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Outer Diameter219 - 1066 mmProcessing ServiceWelding, Punching, Cutting, Bending, Decoiling
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Special PipeAPI Pipe, Other, EMT Pipe, Thick Wall PipeStandardASTM
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TechniqueSaw
This HDPE-coated spiral insulated steel pipe enquiry concerns park and landscape heating-water pipelines, with bending service mentioned in the title. The table names P235JH and Saw technique. Confirm the carrier, insulation, jacket and proposed route geometry as one accepted system before procurement.
Allocate the spiral carrier and finished assembly sizes
Actual options offer a 6–20 mm thickness range with lengths 12 m or 6 m. Outside diameter is listed as 219–1066 mm. Clarify whether that diameter applies to the steel carrier or finished insulated assembly, then specify carrier bore/wall, insulation thickness and jacket diameter separately.
Assign ±1% to its intended dimensional properties and acceptance criteria. Request the full P235JH designation, governing ASTM or other accepted document, condition, traceability and certificates. Obtain records for the actual spiral/weld route and Saw technique entry rather than assuming a manufacturing standard from broad labels.
Specify insulation and the proposed bending service
No insulation material is named here, so request its type, thermal properties, thickness, processing and bonding requirements where applicable. Define HDPE jacket construction, cutbacks, field-joint insulation/sealing, water-ingress protection and inspection. Do not assume polyurethane or a particular temperature limit from adjacent products.
Provide the route drawing and intended bend radius/angle. Agree bending sequence, dimensional acceptance and treatment of insulation/jacket at bends. The processing-service list does not establish every operation on the selected assembly or prove that all offered diameters can meet the proposed geometry.
Review the landscape heating-water installation
State water chemistry, pressure, carrier temperature, cycling, route/depth, soil or groundwater conditions, external loads and movement requirements. Obtain thermal and installation acceptance without assuming direct burial. Verify API/ISO 9001 record scope, then agree joining, support, handling, storage, testing, marking, records and quotation scope.






Technical information for every product inquiry
Prepare the requirement before final product confirmation.
The product page is a starting point. Drawings, samples, interfaces, materials, quantities and acceptance requirements are reviewed before stock matching or custom production is confirmed.
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