接头工作压力表 Working Pressure接头联接型式Connection1 国标接头联接型式GB Connection1.1 74° 锥面密封型式 74° Cone Seal（GB/T 9065.1） 2 德国DIN 标准联接型式 DIN Connection2.1 用卡套进行卡压密封型式Compression Fitting（DIN 2353）2.2 用24°锥面加O 形圈密封型式 24° Cone O-Ring Seal（DIN 3865）2.3 用球面与24°锥面密封型式 Multiseal To 24°Cone 3 美国接头联接型式American Thread Type3.1 用60°锥管螺纹密封型式 60° Tapered Thread Seal（SAE J514） 3.4 90°锥面密封型式90° Cone Seal（SAE J513） 3.7 用O 形圈密封的法兰接头Flange Coupling(SAE J518)油口型式及尺寸Port2 ISO 6149-1 公制螺纹油口及相配柱端 ISO 6149-1 metric thread port and mating stud end. 接头概述及装配说明FITTINGS AND FITTINGS ASSEMBLY INSTRUCTIONSO 形圈平面密封接头O-RING FACE SEAL FITTINGSO 形圈平面密封接头概述O-RING FACE SEAL FITTINGS INSTRUCTIONS● O 形圈平面密封的基本结构可以有两种，第一种为：由接头体、O 形圈、螺母、接管组成，接管与系统管路中的钢管焊接连接，如图1 所示。
第二种为：由接头体、O 形圈、螺母、衬套组成，管子被翻边成90°，如图2 所示使用图1 所示的基本结构时，须保证焊接的质量The fitting has two types.The first type consists of a body,an O-ring,a nut and the tube.The tube is brazed with the system steel tube,see Fig. 1.The second type consists of a body,an O-ring, a nut and a sleeve.As shown in Fig. 2,the tube is flanged to 90°. ● O 形圈平面密封能很好的适用于高压系统，如使用硬度为N90 的O 形圈，能有更好的密封作用，更有效的防止泄漏由于使用O 形圈密封，因此使用的温度范围受O 形圈材质的影响● O-ring face seal fittings are suit for high pressure system.If O-rings are of 90° durometer hardness,the sealing will better.● O 形圈平面密封接头的连接螺纹有两种：公制螺纹（见A1-A），美制ORFS 螺纹（见J1-J）。
● The O-ring face seal fitting has two connected thread:metric thread (see A1-A) and ORFS thread (see J1-J).● O 形圈密封槽的结构有三种，见图3、4、5其中3 结构能保持O 形圈在安装时或垂直倒置时不掉下，方便安装；负压时O 形圈不会被吸入油路4 结构则不具备3 结构的前一优点5 结构既不具备3 结构的前一优点，而且负压时会被吸入油路● As shown in Fig. 3,Fig. 4 and Fig. 5,the O-ring seal groove has three types. The advantage of type Fig. 3 : It is very convenience for installation, when put the groove adown O-ring could be held in the groove and not drop; The O-ring could not enter the hydraulic system when the pressure is negative. The type Fig. 4 has only the later advantage of the type Fig. 3. The type Fig. 5 has no above advantage.● 对公制螺纹的O 形圈槽如需按JB 标准生产时，为图5 的结构。
本公司建议选用图3 结构，用户可在订货时用文字说明如未说明，一般按图5 所示的JB 标准生产对美制ORFS 螺纹的O 形圈槽，本公司全部采用图3 结构生产，不生产图4 或图5 结构.For metric thread O-ring groove JB standard is type Fig. 5, but we suggest that the type Fig. 3 should be chosen andmake a annotation when order. If no annotation we produce as type Fig. 5 general.For ORFS O-ring groove ,we produce as type Fig. 3 only.O 形圈平面密封接头安装O-RING FACE SEAL FITTINGS ASSEMBLY INSTRUCTIONS● 安装Assembly● 重复安装Reassembly● 泄漏原因Leakage reason1 对图1 的基本结构，在安装前应先垂直锯下钢管（± 1°以内），去掉内外径毛刺，并去油及氧化物，套上螺母后再焊接。
对图2 的基本结构，在垂直锯下后用专用设备将管端翻边成90°，且尺寸D 应在D1 和D2 之间，见图6As shown in Fig. 1,the tube end is cut squarely(within +/- 1degree) before assembled.Deburr the O.D. and I.D. of the tube.Remove all oil and oxide.As shown in Fig. 2,the tube is flanged to 90° after cut.Diamter D should fall between diameterD1 and D2, see Fig. 6 1 如果接头体未放置O 形圈，则应先放好O 形圈The fitting body should be installed O-ring firstly.2 按图1 或图2，将接管或钢管翻边压住接头体O 形圈，用手拧紧螺母，再用扭矩扳手按P 的扭矩建议表扳紧；如无扭矩扳手，可用普通扳手再拧紧1/4 到1/2 圈As shown in Fig. 1 or Fig. 2,place tube assembly against the fitting body so that the flat face of the sleeve (or flanged tube)comes in full contact with the O-ring.Thread the nut onto the fitting body by hand and tighten it to the recommended torquetable with a torque wrench.If torque wrenches are not available, tighten i1/4 to 1/2 turn with general wrench. ● 重复安装Reassembly由于是平面密封型式且与安装力垂直，在安装过程中O 形圈可能会扭曲，因此每次重复安装时，应检查O 形圈有无损坏，必要时需更换。
Because the sealing surfaces are flat and perpendicular to the assemple pull,the O-ring may be distorted during assembly. The O-ring should be inspected at each disassembly and replaced when necessary. ● 泄漏原因Leakage reason 1 O 形圈未正确的安放在O 形圈槽内The O-ring is installed in the face seal groove improperly.2 O 形圈有损伤或损坏The O-Ring is damaged.3 接头密封面、接管或翻边有凹坑或其他影响密封的缺陷 The sealing surface,the tube or the flangeis not flat.4 翻边过大或过小，不能压住O 形圈The flange is too large or too small that the O-ring can't be compressed.5 O 形圈材质不适用于工作温度。
The O-Ring material is not suit for working temperature.6 O 形圈硬度不够The O-ring hardness is not enough.7 连接螺母松开The connected nut is loosen.卡套接头BITE TYPE TUBE FITTINGS卡套接头概述BITE TYPE TUBE FITTINGS INSTRUCTIONS卡套式管接头由三部分组成：接头体、卡套、螺母当卡套和螺母套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P1 24°锥的W型柱端按DIN 3861 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42mmBite type fitting consists of three parts: body, cutting ring and nut. When tightening nut, cutting ring is driven forward on the tube then bites the tube with the edge of cutting ring, this is how sealing is achieved and results in internal ridge inside the tube. See Fig-7.The tube connection side of fitting is manufactured in accordance with standard: DIN 3861. In general, body and nuts' surface is plated zinc. Bite type fitting can be used in system with Max 63MPa. The connection tube OD 。