Technical parameters:

Size:DN50 to DN2500

Pressure range: PN1.0 to PN42 Maps

Service life: same as the service life of pipeline

Applicable flows: oil, gas, water, chemical raw material, ore pulp

Quality requirement:

Insulating resistance is greater than10 MΩ at DC 1000V

Insulating intensity: no breakdown or puckering arc for one minute at 2500V 50Hz

Hydraulic test pressure: 1.5 times of designed pressure

Air-tight testing pressure: equivalent to designed pressure

Non-destructive testing: all the welding seams are 100% X ray-detected, All the butt-welding ends are 100% magnetic power detected

Bevel end: according to ASME B16.25

Materials characteristics:

Assemblies: forging piece

Extension nipples: equivalent to the material of pipeline

Insulating material: high-pressure, glass-filled, structural epoxy laminate

Filling material: high strength epoxy resin

Sealing material: rubber fluoride 26

Anti-corrosion insulating material coating: Two component solvent free epoxy coatings or anti-corrosion heat shrink sleeve

Test items:

Hydrostatic testing : 1.5 times of design pressure

Voltage testing : AC 3000V

Insulating resistance: DC 1000V

Visual inspection

Dimensional inspection

Hydraulic Test and Bending test

Hydraulic cycling (fatigue) testing

Dielectric strength test: Immersed in electrolyte solution

Coating adhesion test

flanged insulated joint coupling / flanged insulation joint coupling / flanged insulating joint coupling / flanged dielectric joint coupling

flanged insulated joint coupling / flanged insulation joint coupling / flanged insulating joint coupling / flanged dielectric joint coupling