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絕緣接頭是為解決舊絕緣法蘭的使用問題而開發的新一代產品。是鋼製管道陰極保護係統必不可少的受壓元件，廣泛適用於鋼製管道陰極保護係統。我公司絕緣連接器在借鑒國外最新產品結構的基礎上，采用獨特設計，克服了剛性不足、易漏水、無法埋入地下、使用壽命短等問題，絕緣連接器實現了埋地部件免維護功能並允許與管道相匹配的使用壽命。
技術特點：
壓力等級：PN1.0-PN40MPa
使用壽命：與管道使用壽命相同
環境溫度：-30°C-90°C
適用介質：油、氣、水、化工原料、礦漿
質量要求：
絕緣電阻值≥10MΩ @DC1000V，最大電壓：≥3KV
絕緣強度：2500V 50Hz 1分鍾無擊穿、無電弧
液壓試驗壓力：設計壓力的1.5倍
氣密試驗壓力：相當於設計壓力
無損檢測：所有對接連接器均按照JB4730-94進行100%射線檢測；其他壓力焊接
接縫是 100% 檢測到的磁力。
凹槽：采用AP15L標準
質量要求：
本產品采用的材料滿足以下要求
絕緣材料：高強度環氧樹脂和玻璃纖維分層複合材料
彎曲強度：縱向≥390MPa 側向≥290MPa
拉伸強度：縱向≥340MPa 橫向≥240MPa
抗壓強度：≥390MPa 吸水率≤30mg
電阻後水結塊≥5x108Ω 擊穿電阻≥35KV
總成鋼：16Mn JB4726； ASTM A694 F52 F60
短管 20# 16Mn GB8163-99 X70 X65 X56 X52 X46 API
SPEC.5L
密封材料：O形或U形密封圈：氟橡膠，京基順丁橡膠，根據ASTM D2000
裏料：冷實鬆香
絕緣漆：進口液態環氧樹脂
防腐絕緣材料：雙組分無溶劑環氧塗層，防腐熱縮套管
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
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-corrosin insulating material: two-component solvent-free
epoxy coating, anti-corrosion thermal contraction bushing
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