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        Products >> Steel Insulating Joints >> Insulating Joint
        Insulating Joint
        Insulating Joint
        Insulating Joint
        Insulating Joint
        Insulating Joint
        Insulating Joint
        Insulating Joint
        Genaeral Description of Insulating Joint
              Insulating Joint is an indispensable fittings in natural gas and oil transfering system. it's mainly applied in oil & gas transferring and adjusting station. It’s major function is to insulate between transferring pipes and gas adjusting station to avoid from corrosion and prolong life span. Besides, it can also be buried underground.
        Structure of Insulating Joint
              Insulating Joint consist of following part: upper pipe, lower pipe, glove pipe, insulating part, sealing part and insulating coating. Between upper and lower pipe there are insulating part and sealing part to form a double sealing structure of insulating property. The glove pipe are beveled for welding or directly welding with the upper pipe to form a "sealing space " with insulating apart, upper pipe and lower pipes inside. Thiswill largely enhance the insulating effect and also the anti-pressure capability.
        Sealing style of Insulating Joint
        Insulating Joint has good insulating effect and long life-span. the sealing system is very important for insulating effect. At present, the insulating joint adopt "U" type sealing ring to achieve double insulating system.
        Performance Parameter of Insulating Joint
        1.Insulating Property: 2500V test insulating resistant≥200MΩ
        2.Hydrostatic test: 1.5 times pressure
        3.Air-tight test: equal pressure
        4. Non-destructive test: 100% radiographic inspection for all joint according to JB 4730-94; Other weld seam by 100% magnaflux inspection
        5.Beval: accordng to API 5L
        Technical Features of Insulating Joint
        1.Specification :DN15~DN3200
        2.Pressure Class: PN1.0~PN42MPa
        3.Life Span: same as line pipes
        4.Suitable Medium: oil, gas, water
        5.Working Tempreture:-19℃ ~ +70℃
        Welded Line pipe Material
        1.API 5L X Series pipe
        2.GB/T8163 10#, 20# steel pipe
        3.GB/T3091 Q235B steel pipe
        4.GB/T9711.1 L Series pipe
        Insulating Material & Features
        1.Insulating material: hight density epoxy resin and glass fibre shape composite material ASTM D709 G11
        2.Bending strength: lengthway≥390MPa,cross≥290MPa
        3.Tensile strength: lengthway≥340MPa,coss≥240MPa
        4.Compression strength:≥340MPa,hydroscopicity≤30mg
        5.Electric resistance in water≥5×108Ω,resistance to sparking≥35KV
        6.Combination steel:16Mn JB4726,ASTM A694 F52,F60
        7.Short pipe: 20#,16Mn,GB/T8163-99
        8.X70,X65,X60,X56,X52,X46,API SPEC.5L
        9.Insulating material:O-ring or U-shape sealing ,fluorine rubber, nitrile butadiene rubber
        10.Filling Material: cold curling resin
        11.Insulating coating: imported liquid epoxy resin
        12.Anti-corrosive material: Heat shrinkable anti-corrosion materials
        Specification of Insulating Joint
        Pressure : PN2.5MPa,ANSI 150LB
        Pressure : PN4.0MPa,ANSI 200LB
        Specification
        OD*Thk
        Lenght
        Specification
        OD*Thk
        Lenght
        DN25
        Φ32*4/Φ34*4
        250
        DN25
        Φ32*4/Φ34*4
        250
        DN40
        Φ48*4
        300
        DN40
        Φ48*4
        300
        DN50
        Ф57*4/Ф60*4
        350
        DN50
        Ф57*4/Ф60*4
        350
        DN65
        Φ76*4
        350
        DN65
        Φ76*5
        350
        DN80
        Φ89*4
        400
        DN80
        Φ89*5
        400
        DN100
        Ф108*5/Ф114*5
        400
        DN100
        Ф108*5/Ф114*5
        400
        DN125
        Ф133*5/Ф141*5
        500
        DN125
        Ф133*6/Ф141*6
        500
        DN150
        Ф159*5/Ф168*5
        500
        DN150
        Ф159*7/Ф168*7
        500
        DN200
        Φ219*6
        500
        DN200
        Φ219*7
        500
        DN250
        Φ273*6
        800
        DN250
        Φ273*8
        800
        DN300
        Φ325*7
        800
        DN300
        Φ325*10
        800
        DN350
        Ф356*7/Ф377*7
        900
        DN350
        Ф356*10/Ф377*10
        900
        DN400
        Ф406*7/Ф426*8
        900
        DN400
        Ф406*10/Ф426*10
        900
        DN450
        Φ457*8/Φ480*8
        900
        DN450
        Φ457*10/Φ480*10
        900
        DN500
        Ф508*8/530*8
        900
        DN500
        Ф508*12/530*12
        900
        DN600
        Φ610*9/Φ630*9
        1000
        DN600
        Φ610*14/Φ630*14
        1000
        DN700
        Φ711×10/Φ720*10
        1200
        DN700
        Φ711*14/Φ720*14
        1200
        DN800
        Φ813*10/Φ820*10
        1300
        DN800
        Φ813*16/Φ820*16
        1300
         
        Pressure : PN6.4MPa,ANSI 300LB
        Pressure : PN10.0MPa,ANSI 600LB
        Specification
        OD*Thk
        Lenght
        Specification
        OD*Thk
        Lenght
        DN25
        Φ32*4/Φ34*4
        250
        DN25
        Φ32*5/Φ34*5
        250
        DN40
        Φ48*5
        300
        DN40
        Φ48*5
        300
        DN50
        Ф57*5/Ф60*5
        350
        DN50
        Ф57*5/Ф60*5
        350
        DN65
        Φ76*6
        350
        DN65
        Φ76*6
        350
        DN80
        Φ89*5
        400
        DN80
        Φ89*7
        500
        DN100
        Ф108*6/Ф114*6
        500
        DN100
        Ф108*8/Ф114*8
        500
        DN125
        Ф133*7/Ф141*7
        600
        DN125
        Ф133*8/Ф141*8
        600
        DN150
        Ф159*8/Ф168*8
        600
        DN150
        Ф159*9/Ф168*9
        600
        DN200
        Φ219*9
        600
        DN200
        Φ219*12
        600
        DN250
        Φ273*10
        800
        DN250
        Φ273*14
        800
        DN300
        Φ325*11
        800
        DN300
        Φ325*16
        800
        DN350
        Φ356*12
        1000
        DN350
        Φ356*16
        1000
        DN400
        Ф406*14/Ф426*14
        1000
        DN400
        Ф406*16/Ф426*16
        1000
        DN450
        Φ457*14/Φ480*14
        1000
        DN450
        Φ457*18/Φ480*18
        1000
        DN500
        Ф508*16/530*16
        1200
        DN500
        Ф508*20/530*20
        1200
        DN600
        Φ610*18/Φ630*18
        12000
        DN600
        Φ610*22/Φ630*22
        1200
        DN700
        Φ711*20/Φ720*20
        1300
        DN700
        Φ711*26/Φ720*26
        1300
        DN800
        Φ813*24/Φ820*24
        1300
        DN800
        Φ813*28/Φ820*28
        1300
        TEL: 86-021-36304062 FAX: 86-021-36304052 E-mail: info@tongyangpipe.com
        Copyright © 2005 Shanghai Tongyang Pipe Fittings Co., Ltd. All Rights Reserved
        Address: Xinzhuang Industry Zone ,Shanghai,China
        Insulating Joint
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