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The insulating Joints is a new generation developed product to resolve use problems of old insulating flange. It is the essential pressure component necessary for steel pipeline cathodic protection system, broadly applicable to steel pipeline cathodic protection systems. Our companys insulating connectors adopts a unique design based on referencing foreign latest product structure to overcome problems of inadequate rigidity, prone to leak, unable to be buried under ground, short service life, etc. The insulating connectors have realized buried parts maintenance-free function and allow a service life matching the pipelines.
Technical characteristics:
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 arc for one minute @2500V 50Hz
Hydraulic pressure testing pressure: 1.5 times of desingned 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 AP15L standard
Quality requirement: This product adopt's material satisfy below request
Insulanting meterial: hign strength epoxy resin and fiberglas stratification composite material
Bends intensity: Lengthways≥390MPa Side direction≥290MPa
Pulls stretch intensity: Lengthways≥340MPa Side direction ≥240MPa
Compressive intensity:≥390MPa Water-absorbing≤30mg
Scaks in water behind resistance≥5x108Ω Breakdown resistance≥35KV
Assemblies steel: 16Mn JB4726; ASTM A694 F52 F60
Short pipe 20# 16Mn GB8163-99 X70 X65 X56 X52 X46 API SPEC.5L
if you want to know morethings about it, pls contact us with 0086-021-58160186, msn: monicawang66@hotmail. com
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Insulating joint
