HDPE Coated Spiral Insulated Steel Pipe for Heating

• Invoicing

  By Actual Weight
  Oiled or Non-oiled

  Non-oiled
• Section Shape

  Round
  Surface Treatment

  HDPE Coating
• Tolerance

  ±1%
  Alloy Or Not

  Non-Alloy
• Application

  Fluid Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, Oil Pipe
  Certificate

  API , ISO 9001
• Delivery Time

  8 ~ 14 days
  Grade

  P235JH
• Outer Diameter

  219 - 1066 mm
  Processing Service

  Welding, Punching, Cutting, Bending, Decoiling
• Special Pipe

  API Pipe, Other, EMT Pipe, Thick Wall Pipe
  Standard

  ASTM
• Technique

  Saw

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.