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1、钢管总成 钢管总成 Steel Pipe Assembly Stronger Hydraulic 苏强格液压苏强格液压 - 1 - 卡套接头概述卡套接头概述 Bite Type Fittings Instructions 卡套式管接头由三部分组成：接头体、卡套、螺母。当卡套和螺母在钢管上插入接头体后，旋 紧螺母时，卡套前端外侧与接头体锥面贴合，内刃均匀地咬入无缝钢管，形成有效密封。见图: 24锥的 W 型柱端按 DIN3861 的标准。卡套采用双刃卡套。 通常情况接头体和螺母表面镀锌处理。 接头适用的工作压力最高可达 63MPa，无缝钢管外径 最大为 42mm. Bite type fitti
2、ng consists of three parts: body, cutting ring and nut. When tightening nut, cutting ring is driven forward on the tube then bite the tube with the edge of cutting ring, this is how sealing is achieved and results in internal ridge inside the tube. See above picture. The tube connection side of fitt
3、ing is manufactured in accordance with standard: DIN3861. In general, body and nuts surface is plated zinc. Bite type fitting can be used in system with Max 63MPa.The connection tube O.D. is Max.42mm. 卡套接头的装配卡套接头的装配 Bit Type Tube Fittings Assembly Instructions ? 安装安装 Assembly 1. 锯下合适长度的无缝钢管，去除端口处毛刺。
4、管子 端面要与轴线垂直，角度公差不大于 0.5，如管子 需要折弯，则从管子端面至弯曲位部的直线段长度 不能少于三倍螺母长度。 钢管总成 钢管总成 Steel Pipe Assembly Stronger Hydraulic 苏强格液压苏强格液压 - 2 - Cut the tube at right angle and de_burr inside and outside of tube end. Minimum straight length of tube from the starting point of tube bend to the tube end may be not les
5、s 3 times height of the nut. 2. 把螺母和卡套套在无缝钢管上。 注意螺母和卡套的方 向，如右图所示，不要装反了。 Set a nut and cutting ring on the tube. Make sure the cutting ring and nuts are facing the fitting, as the picture shown at right side. 3. 在预装配接头体螺纹和卡套上涂上润滑油，把管子插 入接头体， （管子一定要插到底）扳手旋转螺母。 Lubricate the pre-assembly fitting body t
6、hreads and cutting ring. Insert tube end into fitting body until it is firmly seated on bottom (fitting shoulder) and tighten the nut by wrench. 4. 拧紧螺母直至卡套卡住管子，这个转折点可以通过拧 紧力矩的增加感受到（压力点） Tighten nut until ferrule grips tube which is felt by a noticeable increase in torque (Increase in force). 5. 达到压
7、力点后，再将压紧螺母拧紧 1/2 圈。Tighten nut 1/2 of a turn after increase in force. . 钢管总成 钢管总成 Steel Pipe Assembly Stronger Hydraulic 苏强格液压苏强格液压 - 3 - 6. 将预装配接头体拆下， 检验卡套刃边的嵌入情况， 可 见的突起带必须填满卡套端面的空间。 卡套可以稍旋 转，但不能轴向推移。 Disassembly the pre-assembly fitting body, check penetration of cutting edge. A visible ring of m
8、aterial should fill the space in front of the cutting ring end face. Cutting ring may rotate on tube, but should not be axial displacement. 7. 最终安装，将实际安装的接头体的罗纹涂上润滑油、压紧螺母之配合拧至可感受到的拧紧力 增加为止，接着再拧紧 1/2 圈安装完毕。 Lubricate the fitting body to be subsequently installed nut until a noticeable increase in for
9、ce is required. Tighten nut by1/2 of a turn beyond this point for final assembly. ? 重复安装重复安装 Reassembly 所有的卡套接头都可以多次重装，但是保证零件无损坏且清洁。 Fitting can be used many times. To ensure this, part must be clean and free of defect. 1. 把管子插入接头体直至卡套贴紧接头体内锥面，用手拧紧螺母。 Insert the tube into fitting body until cutting
10、ring seats firmly in the fitting and hand-tighten the nut. 2. 用扳手拧紧螺母，直至力矩急剧增大，再拧紧 1/4 至 1/2 圈即可。 Tighten the nut with a wrench by holding the fitting body with a back wrench until a sharp rise in torque is felt. Further tighten the nut 1/4 to 1/2 turn. ? 检查检查 Checking up the bite condition 可拆下管子检查装
11、配是否合乎要求：卡套端面的管子 上应该有均匀的轻微凸起。卡套不能前后移动，但允 许有轻微转动。 All bite type fitting must be disassembled prior to service to check up if small ridge inside the tube is completely formed around front edge of cutting ring. Otherwise tighten slightly more to have it. Cutting ring may rotate on the tube but should no
12、t be axial displacement, that doesnt mean wrong installation. The cutting ring shall be refitted once the nut is retightened. ? 泄漏原因泄漏原因 Leakage reason 1. 管子没有插到底。When the tube is not fully bottomed 2. 螺母没有拧紧。When the nut is not tightened enough. 3. 管子外表刮伤或管子不圆。When the tube is of scratches or oval.
13、 4. 管子太硬。When the tube is extremely hard. 钢管总成 钢管总成 Steel Pipe Assembly Stronger Hydraulic 苏强格液压苏强格液压 - 4 - 钢管尺寸、公差以及最大工作压力钢管尺寸、公差以及最大工作压力 Tube Size, Tolerance and Max. Working Pressure 10 号碳素钢管 Carbon Steel C1010 or St37.420号碳素钢或16Mn钢管 Tube St52.4 不锈钢(SUS316) Stainless steel 最大工作压力 Max. working Pre
14、ssure 最大工作压力 Max. working Pressure 最大工作压力 Max. working Pressure 外径 O.D. (mm) 公差 Tolerance (mm) 壁厚 Thickness (mm) 静压 Static (Bar) 动压 Dynamic (Bar) 静压 Static (Bar) 动压 Dynamic (Bar) 静压 Static (Bar) 动压 Dynamic (Bar) 6 6 +0.08 +0.08 1.0 1.5 409 567 391 551 587 830 541 764 391 561 376 529 8 8 8 +0.08 +0.0
15、8 +0.08 1.0 1.5 2.0 353 452 576 303 433 551 503 651 830 419 599 764 338 433 561 291 416 529 10 10 10 +0.08 +0.08 +0.08 1.0 1.5 2.0 282 373 478 248 357 458 426 563 722 360 519 655 270 357 458 238 343 439 12 12 12 +0.08 +0.08 +0.08 1.0 1.5 2.0 235 353 409 209 303 391 355 533 617 304 441 569 225 338 391 201 291 376 14 14 14 14 +0.08 +0.08 +0.08 +0.08 1.5 2.0 2.5 3.0 302 357 434 507 26
