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Quick Details

  • Material: Carbon Steel
  • Technics: welding
  • Type: insulation joint
  • Place of Origin: Shanghai, China (Mainland)
  • Model Number: 1/2''-60''
  • Brand Name: changhao
  • Connection: Welding
  • Shape: Equal
  • Head Code: round
  • name: insulation joint
  • material: carbon steel
  • technic: welding
  • place of origin: shanghai,china
  • size: 1/2''-60''
  • connection: welding
  • brand: changhao

Packaging & Delivery

Packaging Details wooden case
Delivery Time 30 days


1.Name:Insulation Joints
4.Material:stainless steel,carbon steel

1.Name: Insulating joint
2, Design pressure: 10~960bar
3, Pup: API 5L Gr.B~X80
4, Forging: A105, A694 F42~F80
5, Size: 1"~68"

 Technical Characteristics

Dimension specification: DN15~DN1200
Pressure grade: PN1.0~PN40MPa
Service life: same as the service life of pipeline
Ambient temperature: -30°c~90°c
Applicable medium: oil, gas, water, chemical feed, mineral slurry




Quality Requirement

Insulating resistance value: ≥10MΩ@DC1000V
Maximum voltage: ≥3kv
Insulating intensity: no breakdown or one minute @2500v 50HZ
Hydraulic pressure testing pressure: 1.5times of designed pressure
Air-tight testing pressure: equivalent to designed pressure
Non-destructive testing: all the butt-connectors are 100% ray-detected according to JB4730-94; other pressure welding seams are 100% magnetic power detected
Groove: adopt API 5L standard





Material Requirement

This product adopt’s material satisfy below request:

Insulating material: high strength epoxy resin and fiberglass stratification composite material
Bends intensity: lengthways ≥390 MPa Side direction ≥290 MPa
Pulls stretch intensity: lengthways ≥340 MPa Side direction ≥240 MPa
Compressive intensity: ≥390 MPa water –absorbing ≤30mg
Soaks in water behind resistance: ≥5*108Ω Breakdown resistance ≥35kv
Assemblies steel: 16Mn JB4726; ASTM A694 F52, F60
Short pipe: 20# 16Mn GB8163-99 *70 *65 *60 *56 *52 *46 API SPEC. 5L
Sealing material: O shape or U shape gland ring: Rubber fluorine, Jing base-butadiene rubber, According ASTM D2000
Lining material: Cold solid colophony
Insulating paint: imports liquid epoxy resin
Anti-corrosion insulating material: two-component solvent-free epoxy coating, anti-corrosion thermal contraction busing

Type and Dimension

For example: DN400B-64 represents the insulating joint of DN400 and 6.4Mpa press class.

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China (Mainland) | Trading Company
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