绝缘接头是为解决旧绝缘法兰的使用问题而开发的新一代产品。是钢制管道阴极保护系统必不可少的受压元件,广泛适用于钢制管道阴极保护系统。我公司绝缘连接器在借鉴国外最新产品结构的基础上,采用独特设计,克服了刚性不足、易漏水、无法埋入地下、使用寿命短等问题,绝缘连接器实现了埋地部件免维护功能并允许与管道相匹配的使用寿命。
技术特点:
压力等级:PN1.0-PN40MPa
使用寿命:与管道使用寿命相同
环境温度:-30°C-90°C
适用介质:油、气、水、化工原料、矿浆
质量要求:
绝缘电阻值≥10MΩ @DC1000V,最大电压:≥3KV
绝缘强度:2500V 50Hz 1分钟无击穿、无电弧
液压试验压力:设计压力的1.5倍
气密试验压力:相当于设计压力
无损检测:所有对接连接器均按照JB4730-94进行100%射线检测;其他压力焊接
接缝是 100% 检测到的磁力。
凹槽:采用AP15L标准
质量要求:
本产品采用的材料满足以下要求
绝缘材料:高强度环氧树脂和玻璃纤维分层复合材料
弯曲强度:纵向≥390MPa 侧向≥290MPa
拉伸强度:纵向≥340MPa 横向≥240MPa
抗压强度:≥390MPa 吸水率≤30mg
电阻后水结块≥5x108Ω 击穿电阻≥35KV
总成钢: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:氟橡胶,京基顺丁橡胶,根据ASTM D2000
里料:冷实松香
绝缘漆:进口液态环氧树脂
防腐绝缘材料:双组分无溶剂环氧涂层,防腐热缩套管
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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