Insulating joint product details:
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.
Размер | DN15~DN3000mm (Customized any size) |
Материал | Carbon Steel, Stainless Steel , Various Material |
Insulating bushing material | The teflon rod |
Minimum thickness of insulation rings and insulation seals | According to the working conditions and sealing discretion strength to determine |
Seal material | fluororubber |
Filling Insulating | Epoxy Resin |
fastener | equal length double stud, hexagon nut, flat washer |
Insulated coating | Imported liquid epoxy resin |
Insulation resistance value | ≥20Ω @DC 1000V,maximum voltage≥3kv |
Breakdown voltage | ≥5KV |
Steel Matrix | 20#,16Mn Forging |
Short Pipe | Intensity is higher than pipeline |
Anti-corrosive Material | Heat Shrinkable sleeve anti-corrosive material |
Type | Seamless /Welded |
Insulating Intensity | No breakdown or arc for one minute @2500v 50HZ |
Groove | adopt API 5L standard |
Pressure | Класс :150CL,300CL,400CL,600CL,900CL(as customer requirement) |
Different pipe materials can be used according to user requirements, | such as: high-strength carbon steel, austenitic stainless steel, double joint |
Different pipe combinations can also be used, | such as: carbon steel and stainless steel, steel and copper, steel and titanium. |
a variety of connection methods are available for users to choose: such | as flange connection, threaded connection, threaded connection with valve and welded connection. |
Insulation material: high compressive strength, high penetration resistance, low water absorption, high electrical insulation strength, aging resistance and good machining performance.
For example, high-density epoxy resin and glass fiber layered composite material ASTMD709 G11.
Combination steel body: 16Mn JB4726; ASTM A694 F52, F60, or comply with other specified requirements.
Short pipe: 20 # 20G 16Mn GB8163-99 X70 X65 X60 X52 X52 X42 API SPEC.5L
304 304L 316 316L. Fully meet the needs of pipeline construction.
Sealing materials: U-shaped sealing ring, 0-shaped sealing ring, fluororubber, nitrile butadiene rubber,
Compliant with ASTM D2000
Filler material: Cold setting resin with sufficient compressive strength.
Insulating coating liquid epoxy resin. Anti corrosion materials: heat shrink sleeve (tape), polyester coating.
Quality requirements
Insulation resistance value: DC 2500V resistance value ≥ 20M Ω
Insulation strength: 2500V 50Hz for 1 minute without breakdown or arcing
Hydraulic test pressure: 1.5 times the design pressure
Air tightness test pressure: equivalent to the design pressure
Non destructive testing: According to JB4730-94, all butt joints shall undergo 100% radiographic testing, and other pressure bearing welds shall undergo 100% magnetic particle testing. According to JB4730-94, all butt joints shall undergo 100% radiographic testing, and other pressure bearing welds shall undergo 100% magnetic particle testing.
Insulating Joint
pipeline electrical corrosion protection project, so the insulation joint can isolate each section of the gas transmission and
distribution pipeline, and the equipment and the pipeline, protect them from chemical corrosion, and extend the service life of the pipeline and equipment
petroleum, chemical industry, Marine oil depot and other industries for many years. They are simple in structure, low in price,
safe in use and reliable in performance, and are widely praised by users. In addition, our company can be processed according to
user needs or drawings.