Monolithic insulating joint is a high-tech product
It is very difficult to manufacture the monolithic insulating joint, it requires accurate design, precision machining and accurate assembly, the combination of a wide array of high-quality materials, strict quality inspection, so the monolithic insulating joint is multidisciplinary comprehensive high-tech product.
monolithic insulating joints
up to 42 Mpa
design temperature 250℃;(exported to Sudan Project)
more than 10 MΩ at 2.5KV DC(direct current)
no breakdown at 50Hz, 3KV AC(alternating current)
The insulating Joints is a new generation developed product to resolve use problems of old insulating flange.
Can be buried directly Without any maintained.A variety of diameters and pressure, can meet the requirement of high, medium, low pressure steel pipeline for oil, water and gas.
Insulating resistance value:
≥10MΩ @DC1000V, Maximum voltage:≥3KV
no breakdown or arc for one minute @2500V 50Hz
1.5 times of designed pressure
equivalent to designed pressure
All the butt-connectors are 100% ray-detected according to JB4730-94; other pressure welding seams are 100% magnetic power detected.
adopt AP15L standard
high strength epoxy resin and fiberglas stratification composite material
Lengthways≥390MPa Side direction≥290MPa
Lengthways≥340MPa Side direction ≥240MPa
Scaks in water behind resistance:
≥5x108Ω Breakdown resistance≥35KV
16Mn JB4726; ASTM A694 F52 F60
O shape or U shape gland ring: Rubber fluorine, Jing base butadiene rubber, According ASTM D2000
Cold solid colophony
Imports liquid epoxy resin
Anti-corrosion insulating material:
two-component solvent-free epoxy coating, anti-corrosion thermal contraction bushing