




拉菲2平台app下载【kok795.com】是亚洲最大自主品牌游戏平台,日韩、俄罗斯、欧美女优荷官,各个美艳动人,百万大奖等您来拿,拉菲2平台app官网领取各种活动优惠,无需申请自动到账!

3-Layer Polypropylene (3LPP) Coated Line Pipe
Description
3-Layer Polypropylene (3LPP) Coated Line Pipe
LINKUN can produce 3LPP 3-Layer Polypropylene Coating for API 5L PSL 1 & PSL 2 Line Pipes from NPS 2" to NPS 56" (60.3mm - 1422.4mm), welcome to contact us if you have such RFQs.
Three Layer Poly Propylene (3LPP) coating 3LPP coating system is a multilayer coating composed of three functional components: a high-performance fusion-bonded epoxy (FBE), followed by a copolymer adhesive and an outer layer of Medium Density Polypropylene (MDPP) or High-Density Polypropylene (HDPP), which provides protection against external corrosion.
The codes and standards for 3LPP Coating are DIN 30678, ISO 21809-1, NFA 49-711, SHELL DEP 31.40.30.31-CSPC
DIN 30678-2013 Polypropylene coatings on steel pipes and Fittings
ISO 21809-1:2011 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems -- Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
NFA 49-711 External Coating with Three Polyproplene Layers Coating, Application by Extrusion
SHELL DEP 31.40.30.31-CSPC External Polyethylene and Polypropylene Coating for Line Pipe
Fusion Bonded Epoxy (FBE): First layer of FBE shall be 150 microns thick.
Adhesive: Second layer of extruded co-polymer adhesive, 200 microns thick.
Polypropylene (MDPP/HDPP): Third layer of extruded polypropylene (MDPP/HDPP), 1.6 – 2.95 mm thick.
Application of Coating:
Surface preparation of pipe by sandblast cleaning (SSPC-SP10/NACE No.2/ISO 8501-1 Sa 2 1/2/SIS 05 59 00)
Subsequent to pipe heating fusion epoxy powder shall be applied
Extruded adhesive shall be applied over the pipe.
Finally extruded polypropylene (MDPP or HDPP) layer shall be applied over the adhesive layer.
Total coating thickness is generally < 3.0 mm for pipe dia < 24" and 3.3 mm for pipe dia 32" & above)
Feedback
Friend Link 拉菲2平台app下载 
小泽玛利亚 樱井步 苍井空 石黑京香 桃谷绘里香 白咲舞 川岛和津实 黑泽爱 樱井步 小泽爱丽丝 七濑茱莉亚 樱朱音 原千寻 若菜奈央 稻森丽奈 尾野真知子 友田真希 花野真衣 雪本芽衣 雨宫真贵 冲田杏梨 高阪保奈美 霞理沙 泽井芽衣 北野望 桃谷绘理香 橋本凉 波多野结衣 仁科百华 柚木提娜 长泽梓 大沢佑香 天海翼 前田香织 前田香织 二宫沙树 铃木里美 希崎杰西卡 麻仓优 麻美由真 原更沙 葵实野理 上原瑞穂 福山沙也加 铃木麻奈美 西野翔 神谷姬 希志爱野 琴乃 希崎杰西卡 秋元里奈 原干惠 杏树纱奈 佐藤遥希 Sato Haruki 前田香织 二宫沙树 仁科百华 樱木凛 秋元里奈 小泽爱丽丝 原纱央莉 浅井舞香 音羽雷恩 天海丽 大泽佑香 百合野もも 里美尤里娅 铃原爱蜜莉 美竹铃 吉沢明步 吉泽明步 早川濑里奈 美竹凉子 松岛枫 佐佐木希 樱井梨花 立花美凉 小泉彩 里美尤里娅 铃原爱蜜莉 美竹铃 松岛枫 佐佐木希 朝美穗香 上原结衣 纹舞兰