钢管总成 Steel Pipe Assembly
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.
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 threads and cutting ring. Insert tube end into fitting body until it is firmly seated on bottom (fitting shoulder) and tighten the nut by wrench.
Insert the tube into fitting body until cutting 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.
(Bar)
ቤተ መጻሕፍቲ ባይዱ
(Bar)
(Bar)
(Bar)
(Bar)
(Bar)
1.0
409
391
587
541
391
376
1.5
567
551
830
764
561
529
1.0
353
303
503
419
338
291
1.5
452
433
651
599
433
416
2..0
576
551
830
764
561
529
1.0
282
248
426
360
270
238
1.5
373
357
563
519
357
343
2.0
478
458
722
655
458
439
1.0
235
209
355
304
225
201
1.5
353
303
533
441
338
291
2.0
409
391
617
569
391
376
1.5
302
264
456
383
289
253
2.0
357
342
539
497
342
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. 4. 管子太硬。When the tube is extremely hard.
10 号碳素钢管 20 号碳素钢或 16Mn 钢管 不锈钢(SUS316)
壁厚 Carbon Steel C1010 or St37.4
Tube St52.4
Stainless steel
Thickness
最大工作压力
最大工作压力
最大工作压力
(mm)
Max. working Pressure Max. working Pressure Max. working Pressure 静压 Static 动压 Dynamic 静压 Static 动压 Dynamic 静压 Static 动压 Dynamic
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 less 3 times height of the nut.
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 Bit Type Tube Fittings Assembly Instructions
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Stronger Hydraulic 苏强格·液压
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钢管总成 Steel Pipe Assembly
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 material should fill the space in front of the cutting ring end face. Cutting ring may rotate on tube, but should not be axial displacement.
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.
公差
Tolerance
(mm)
+0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.15 +0.15 +0.15 +0.15 +0.15 +0.15 +0.15 +0.15 +0.15 +0.20 +0.20 +0.20 +0.20 +0.20 +0.20 +0.20 +0.20 +0.25 +0.25 +0.25 +0.25 +0.25 +0.25 +0.25 +0.25 +0.25
Bite type fitting 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 fitting is manufactured in accordance with standard: DIN3861.
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.
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 force is required. Tighten nut by1/2 of a turn beyond this point for final assembly.