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| No.13701623
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Information Name: | Zhengzhou corrosion corrosion insulation joint insulation joint stock manufacturers |
Published: | 2015-04-16 |
Validity: | 30 |
Specifications: | 15-1200 |
Quantity: | 5000.00 |
Price Description: | |
Detailed Product Description: | Zhengzhou corrosion corrosion insulation joint insulation joint stock manufacturers an overview LFJ Series insulated joints are buried steel requirements of sealing performance and corrosion protection works electrical demand electrical insulation properties of pipe joints collectively. It contains the assembly, insulating plate, filler, sealing rings, short tubes. Insulating joints have welded end overall structures (buried, maintenance-free) is a high-tech company to introduce the nineties, the internal structure of the use of O-type or U-shaped rubber ring seal, so far ahead of the domestic market. Manufacturing strict implementation GB150-98 "steel pressure vessel", HG20583-98 "steel chemical container structure design requirements," and JB4730-2005 "non-destructive testing of pressure vessels," etc., so that product quality can be improved steadily. 2, a high insulation performance 2.1 LFJ series insulation joint insulation ring with a high compressive strength (not less than 350N / mm2), low water absorption, high dielectric strength, anti-aging material, the insulation resistance value is greater than 10MΩ, far greater than the Other insulated joint resistance, thus greatly improving the insulation, reducing the leakage current, more full cathodic protection, improving the protection of the pipeline is operational life. 2.2 LFJ Series insulated steel-degree far greater than the formation of a joint pipeline section modulus of bending steel cylinder, of course, can withstand greater moment (according to the strength of design and pipelines), eliminating the other insulating joints because the structure is not make reasonable cause insufficient stiffness caused spill. 2.3 Long life LFJ Series insulated joints using secondary sealing mechanism, O and U-type self-tight seal, sealed section of insulation laminated ring. Completely avoid products in the hydrostatic testing of soil moisture and prevent moisture infiltration within the internal streets, good sealing performance. Coupled with the annular space of the sleeve (assembly) within the injected polymer composites, low viscosity, cold-thermosetting resin. And has a certain compressive strength. Eliminate leakage due to seal failure caused by leakage and insulation failure caused, especially King rubber (Viton) seal, greatly enhance the degree of aging, so that the life of the pipeline equivalent. 2.4 underground installation LFJ Series insulated joints due to high insulation, sealing, reliable, and pipelines equal life, no maintenance, so do not set up observation wells installed underground, can be directly buried whole. 3, the main technical parameters LFJ Series insulated joints under extreme operating conditions, reliable seal, good electrical insulation properties, any stress metal components does not exceed its specified minimum yield strength of 90%, to ensure permanent elasticity and tightness. LFJ Series insulated joints in accordance with the principle of equal strength, yield strength forgings standard should yield consistent strength and pipeline material standard connection. Short section (with a short section of forging welding) yield strength consistent with the connecting line of the yield strength, and good weldability. 4, the structural characteristics LFJ Series insulated joints welded end the overall structure. The main structure as a whole or forged wrought body and a short section (rolled steel or steel) welded connection structure. LFJ Series insulated joint pressure seal with O-type or U-shaped self-tight seal, and seal by molding, with a permanent residual elasticity to ensure a reliable seal the joint. 5. Materials 5.1 assembly of metallic materials: Forging a short pipe: seamless steel tube or sheet rolled 5.2 nonmetallic materials insulation boards: 3240 high strength phenolic cloth laminated board (GB1303) O and U-ring: Viton. 5.3 filler material: Epoxy 6, Manufacturing Execution standard LFJ Series insulated joints, inspection and acceptance to meet the requirements of the latest version of the following criteria, procedures and specifications and meet the requirements of ISO9001 quality system. GB / T1047-2005 public piping components DN SY / T0516-8212; 2008 insulating flange design provides SY / T0086-8212; electrical insulation standard GB 2003 pipeline cathodic protection / T8163-8212; 2008 transmission fluid with seamless Pipe GB / T1303.1-8212; 1998 3240 epoxy glass cloth laminate NB / T 47008-8212; 2010 (JB / T 4726) Pressure for Carbon and Alloy Steel Forgings NB / T 47009-8212; 2010 (JB / T 4727) low pressure equipment with low alloy steel forgings GB / T9711.2-8212; 1999 oil and natural gas industries - Steel pipe Technical delivery conditions - Part 2: B-grade steel pipe GB / T1048-8212; 2005 nominal pipe components Pressure GB / T1182-8212; 2008 shape and position tolerance code and injection method GB / T1184-8212; 1996 did not note the shape and position tolerances specified tolerances GB / T1800-8212; 1999 tolerances and fits standard tolerances and fundamental deviations Subjects GB / T1804-8212; 2000 General tolerances for linear dimensions without tolerances GB / T3452.1-8212; 1992 hydraulic and pneumatic rubber O-ring size series GB / T3452.3-8212; 2005 hydraulic and pneumatic rubber seal with O ring groove dimensions and design calculations GB / T9969.1-8212; 1998 Industrial Product Manual General GB / T4208-8212; 2008 Enclosure protection GB / T50058-8212; 92 explosion and fire hazard 7 power plant design specifications, product Features Specifications: DN10 ~ DN3200 Pressure rating: PN0.6MPa ~ PN42.0MPa good insulation properties: 500V shake table testing insulation resistance ≥200MΩ, breakdown voltage ≥3KV. Long life: with the pipeline with life, such as strength. High intensity: pressure test ≥1.5PN (design pressure). Operating temperature: -30 ℃ - + 100 ℃. Medium: oil, gas, water, chemical raw materials, such as coal slurry. 8, material characteristics: The investigation materials you used to meet the following requirements: Insulation material: high strength epoxy resin and glass fiber composites - layered: ASTM D709 G11. Bending strength: Portrait ≥390MPa, transverse ≥290MPa; Tensile strength: Portrait ≥340MPa, transverse ≥240MPa; compressive strength: ≥340MPa; water absorption: ≤30mg; ≥5 * 108Ω resistance breakdown voltage ≥35KV combined steel after immersion in water Body: Q235,20 #, 16Mn, F42, F46, F48, F50, F52, F56, F60, F65 short pipe welding: Q235,20 #, 16Mn, L210, L245, L290, L320, L360, L390, L415, L450 , X42, X46, X52, X56, X65 sealing materials: O-shaped or U-shaped seal ring: Viton, nitrile butadiene rubber, in line with ASTM D2000. Filling material: cold-resistant resin; insulation coating; imports of liquid epoxy resin; anti-corrosion materials: thermal anti-corrosion materials; 9, installation requirements: 1. insulated joints installed at 50 meters, to avoid the need to be welded shut mouth. 2. insulated pipe joints and connections, not allowed within five meters of lifting the joint pipeline. 3. Insulation joints and pipeline pressure test instrument. 4. insulation joints and plumbing connections, should be required to fill the mouth, are not allowed to make the insulation joint surface temperature higher than 120 ℃, corrosion jobs. 5. insulating joints can be installed on straight pipe underground. 6. insulated joints using ground-mounted, should be installed on the elbow from just 20 meters away and set the bracket segment. 7. Avoid installing insulation joints on the riser. 8. underground installation should be avoided in the perennial water place. |
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Copyright © GuangDong ICP No. 10089450, Hebei billion Swiss Pipeline Co. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 10009 visitor
Copyright © GuangDong ICP No. 10089450, Hebei billion Swiss Pipeline Co. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility