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Insulating Joint

  • Introduction:Hebei Haihao Group can manufacture insulating joint with carbon/stainless steel in high

Insulating Joint

Product details

Performance Parameter of Insulating Joint

1. Insulating Property: 2500V test insulating resistant≥ 200MΩ

2. Hydrostatic test: 1.5 times pressure

3. Air-tight test: Equal pressure

4. Non-destructive test: 100% radiographic inspection for all joint according to JB 4730-94; Other weld seam by 100% magnaflux inspection

5. Beval: Accordng to API 5L


Technical Features of Insulating Joint

1. Specification: DN15~DN3200

2. Pressure Class: PN1.0~PN42MPa

3. Life Span: Same as line pipes

4. Suitable Medium: Oil, gas, water

5. Working Tempreture: -19° C ~ +70° C

carbon steel pipe insulating joint

carbon steel pipe insulating joint

Welded Line pipe Material

1. API 5L X Series pipe

2. GB/T8163 10#, 20# steel pipe

3. GB/T3091 Q235B steel pipe

4. GB/T9711.1 L Series pipe


Insulating Material & Features

1. Insulating material: Hight density epoxy resin and glass fibre shape composite material ASTM D709 G11 .

2. Bending strength: Lengthway≥ 390MPa, cross≥ 290MPa .

3. Tensile strength: Lengthway≥ 340MPa, coss≥ 240MPa .

4. Compression strength: ≥ 340MPa, hydroscopicity≤ 30mg .

5. Electric resistance in water≥ 5× 108Ω , resistance to sparking≥ 35KV .

6. Combination steel: 16Mn JB4726, ASTM A694 F52, F60 .

7. Short pipe: 20#, 16Mn, GB/T8163-99 .

8. X70, X65, X60, X56, X52, X46, API SPEC. 5L

9. Insulating material: O-ring or U-shape sealing, fluorine rubber, nitrile butadiene rubber .

10. Filling Material: Cold curling resin .

11. Insulating coating: Imported liquid epoxy resin .

12. Anti-corrosive material: Heat shrinkable anti-corrosion materials .  


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