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Insulating Joint |
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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. ItӮs 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. |
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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”Ż200M¦ø
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”ę ~ +70”ę |
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”Ż390MPa,cross”Ż290MPa
3.Tensile strength: lengthway”Ż340MPa,coss”Ż240MPa
4.Compression strength:”Ż340MPa,hydroscopicity”Ü30mg
5.Electric resistance in water”Ż5”Į108¦ø,resistance to sparking”Ż35KV
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 |
¦µ32*4/¦µ34*4 |
250 |
DN25 |
¦µ32*4/¦µ34*4 |
250 |
DN40 |
¦µ48*4 |
300 |
DN40 |
¦µ48*4 |
300 |
DN50 |
§¶57*4/§¶60*4 |
350 |
DN50 |
§¶57*4/§¶60*4 |
350 |
DN65 |
¦µ76*4 |
350 |
DN65 |
¦µ76*5 |
350 |
DN80 |
¦µ89*4 |
400 |
DN80 |
¦µ89*5 |
400 |
DN100 |
§¶108*5/§¶114*5 |
400 |
DN100 |
§¶108*5/§¶114*5 |
400 |
DN125 |
§¶133*5/§¶141*5 |
500 |
DN125 |
§¶133*6/§¶141*6 |
500 |
DN150 |
§¶159*5/§¶168*5 |
500 |
DN150 |
§¶159*7/§¶168*7 |
500 |
DN200 |
¦µ219*6 |
500 |
DN200 |
¦µ219*7 |
500 |
DN250 |
¦µ273*6 |
800 |
DN250 |
¦µ273*8 |
800 |
DN300 |
¦µ325*7 |
800 |
DN300 |
¦µ325*10 |
800 |
DN350 |
§¶356*7/§¶377*7 |
900 |
DN350 |
§¶356*10/§¶377*10 |
900 |
DN400 |
§¶406*7/§¶426*8 |
900 |
DN400 |
§¶406*10/§¶426*10 |
900 |
DN450 |
¦µ457*8/¦µ480*8 |
900 |
DN450 |
¦µ457*10/¦µ480*10 |
900 |
DN500 |
§¶508*8/530*8 |
900 |
DN500 |
§¶508*12/530*12 |
900 |
DN600 |
¦µ610*9/¦µ630*9 |
1000 |
DN600 |
¦µ610*14/¦µ630*14 |
1000 |
DN700 |
¦µ711”Į10/¦µ720*10 |
1200 |
DN700 |
¦µ711*14/¦µ720*14 |
1200 |
DN800 |
¦µ813*10/¦µ820*10 |
1300 |
DN800 |
¦µ813*16/¦µ820*16 |
1300 |
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Pressure : PN6.4MPa,ANSI 300LB |
Pressure : PN10.0MPa,ANSI 600LB |
Specification |
OD*Thk |
Lenght |
Specification |
OD*Thk |
Lenght |
DN25 |
¦µ32*4/¦µ34*4 |
250 |
DN25 |
¦µ32*5/¦µ34*5 |
250 |
DN40 |
¦µ48*5 |
300 |
DN40 |
¦µ48*5 |
300 |
DN50 |
§¶57*5/§¶60*5 |
350 |
DN50 |
§¶57*5/§¶60*5 |
350 |
DN65 |
¦µ76*6 |
350 |
DN65 |
¦µ76*6 |
350 |
DN80 |
¦µ89*5 |
400 |
DN80 |
¦µ89*7 |
500 |
DN100 |
§¶108*6/§¶114*6 |
500 |
DN100 |
§¶108*8/§¶114*8 |
500 |
DN125 |
§¶133*7/§¶141*7 |
600 |
DN125 |
§¶133*8/§¶141*8 |
600 |
DN150 |
§¶159*8/§¶168*8 |
600 |
DN150 |
§¶159*9/§¶168*9 |
600 |
DN200 |
¦µ219*9 |
600 |
DN200 |
¦µ219*12 |
600 |
DN250 |
¦µ273*10 |
800 |
DN250 |
¦µ273*14 |
800 |
DN300 |
¦µ325*11 |
800 |
DN300 |
¦µ325*16 |
800 |
DN350 |
¦µ356*12 |
1000 |
DN350 |
¦µ356*16 |
1000 |
DN400 |
§¶406*14/§¶426*14 |
1000 |
DN400 |
§¶406*16/§¶426*16 |
1000 |
DN450 |
¦µ457*14/¦µ480*14 |
1000 |
DN450 |
¦µ457*18/¦µ480*18 |
1000 |
DN500 |
§¶508*16/530*16 |
1200 |
DN500 |
§¶508*20/530*20 |
1200 |
DN600 |
¦µ610*18/¦µ630*18 |
12000 |
DN600 |
¦µ610*22/¦µ630*22 |
1200 |
DN700 |
¦µ711*20/¦µ720*20 |
1300 |
DN700 |
¦µ711*26/¦µ720*26 |
1300 |
DN800 |
¦µ813*24/¦µ820*24 |
1300 |
DN800 |
¦µ813*28/¦µ820*28 |
1300 |
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