液壓膠管接頭

1、接頭工作壓力表 Working Pressure接頭聯(lián)接型式Connection1 國(guó)標(biāo)接頭聯(lián)接型式GB Connection1.1 74° 錐面密封型式 74° Cone Seal（GB/T 9065.1） 2 德國(guó)DIN 標(biāo)準(zhǔn)聯(lián)接型式 DIN Connection2.1 用卡套進(jìn)行卡壓密封型式Compression Fitting（DIN 2353）2.2 用24°錐面加O 形圈密封型式 24° Cone O-Ring Seal（DIN 3865）2.3 用球面與24°錐面密封型式 Multiseal To 24°Cone 3 美

2、國(guó)接頭聯(lián)接型式American Thread Type3.1 用60°錐管螺紋密封型式 60° Tapered Thread Seal（SAE J514） 3.4 90°錐面密封型式90° Cone Seal（SAE J513） 3.7 用O 形圈密封的法蘭接頭Flange Coupling(SAE J518)油口型式及尺寸Port2 ISO 6149-1 公制螺紋油口及相配柱端 ISO 6149-1 metric thread port and mating stud end. 接頭概述及裝配說(shuō)明FITTINGS AND FITTINGS ASSEMB

3、LY INSTRUCTIONSO 形圈平面密封接頭O-RING FACE SEAL FITTINGSO 形圈平面密封接頭概述O-RING FACE SEAL FITTINGS INSTRUCTIONS O 形圈平面密封的基本結(jié)構(gòu)可以有兩種，第一種為：由接頭體、O 形圈、螺母、接管組成，接管與系統(tǒng)管路中的鋼管焊接連接，如圖1 所示。第二種為：由接頭體、O 形圈、螺母、襯套組成，管子被翻邊成90°，如圖2 所示。使用圖1 所示的基本結(jié)構(gòu)時(shí)，須保證焊接的質(zhì)量。The fitting has two types.The first type consists of a body,an O-r

4、ing,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適用于高壓系統(tǒng)，如使用硬度為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，因此使用的溫度范圍受O 形圈材質(zhì)的影響。 O-ring face seal

5、 fittings are suit for high pressure system.If O-rings are of 90° durometer hardness,the sealing will better. O 形圈平面密封接頭的連接螺紋有兩種：公制螺紋（見(jiàn)A1-A），美制ORFS 螺紋（見(jiàn)J1-J）。 The O-ring face seal fitting has two connected thread:metric thread (see A1-A) and ORFS thread (see J1-J). O 形圈密封槽的結(jié)構(gòu)有三種，見(jiàn)圖3、4、5。其中3 結(jié)構(gòu)能

6、保持O 形圈在安裝時(shí)或垂直倒置時(shí)不掉下，方便安裝；負(fù)壓時(shí)O 形圈不會(huì)被吸入油路。4 結(jié)構(gòu)則不具備3 結(jié)構(gòu)的前一優(yōu)點(diǎn)。5 結(jié)構(gòu)既不具備3 結(jié)構(gòu)的前一優(yōu)點(diǎn)，而且負(fù)壓時(shí)會(huì)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 a

7、nd 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. 對(duì)公制螺紋的O 形圈槽如需按JB 標(biāo)準(zhǔn)生產(chǎn)時(shí)，為圖5 的結(jié)構(gòu)。本公司建議選用圖3 結(jié)構(gòu)，用戶(hù)可在訂貨時(shí)用文字說(shuō)明。如未說(shuō)明，一般按圖5 所示的JB 標(biāo)準(zhǔn)生產(chǎn)。對(duì)美制ORFS 螺紋的O 形圈槽，本公司全部采用

8、圖3 結(jié)構(gòu)生產(chǎn)，不生產(chǎn)圖4 或圖5 結(jié)構(gòu).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 形圈平面密封接頭安裝O-RING FACE SEA

9、L FITTINGS ASSEMBLY INSTRUCTIONS 安裝Assembly 重復(fù)安裝Reassembly 泄漏原因Leakage reason1 對(duì)圖1 的基本結(jié)構(gòu)，在安裝前應(yīng)先垂直鋸下鋼管（± 1°以?xún)?nèi)），去掉內(nèi)外徑毛刺，并去油及氧化物，套上螺母后再焊接。對(duì)圖2 的基本結(jié)構(gòu)，在垂直鋸下后用專(zhuān)用設(shè)備將管端翻邊成90°，且尺寸D 應(yīng)在D1 和D2 之間，見(jiàn)圖6。As shown in Fig. 1,the tube end is cut squarely(within +/- 1degree) before assembled.Deburr the O.

10、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 如果接頭體未放置O 形圈，則應(yīng)先放好O 形圈。The fitting body should be installed O-ring firstly.2 按圖1 或圖2，將接管或鋼管翻邊壓住接頭體O 形圈，用手?jǐn)Q緊螺母，再用扭矩扳手按P 的扭矩建議表扳緊；

11、如無(wú)扭矩扳手，可用普通扳手再擰緊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 wre

12、nch.If torque wrenches are not available, tighten i1/4 to 1/2 turn with general wrench. 重復(fù)安裝Reassembly由于是平面密封型式且與安裝力垂直，在安裝過(guò)程中O 形圈可能會(huì)扭曲，因此每次重復(fù)安裝時(shí)，應(yīng)檢查O 形圈有無(wú)損壞，必要時(shí)需更換。Because the sealing surfaces are flat and perpendicular to the assemple pull,the O-ring may be distorted during assembly. The O-ring sho

13、uld be inspected at each disassembly and replaced when necessary. 泄漏原因Leakage reason 1 O 形圈未正確的安放在O 形圈槽內(nèi)。The O-ring is installed in the face seal groove improperly.2 O 形圈有損傷或損壞。The O-Ring is damaged.3 接頭密封面、接管或翻邊有凹坑或其他影響密封的缺陷。 The sealing surface,the tube or the flangeis not flat.4 翻邊過(guò)大或過(guò)小，不能壓住O 形圈。

14、The flange is too large or too small that the O-ring can't be compressed.5 O 形圈材質(zhì)不適用于工作溫度。The O-Ring material is not suit for working temperature.6 O 形圈硬度不夠。The O-ring hardness is not enough.7 連接螺母松開(kāi)。The connected nut is loosen.卡套接頭BITE TYPE TUBE FITTINGS卡套接頭概述BITE TYPE TUBE FITTINGS INSTRUCTION

15、S卡套式管接頭由三部分組成：接頭體、卡套、螺母。當(dāng)卡套和螺母套在鋼管上插入接頭體后，旋緊螺母時(shí)，卡套前端外側(cè)與接頭體錐面貼合，內(nèi)刃均勻地咬入無(wú)縫鋼管，形成有效密封。見(jiàn)圖P1。 24°錐的W型柱端按DIN 3861 標(biāo)準(zhǔn)?？ㄌ撞捎秒p刃卡套。通常情況接頭體和螺母表面鍍鋅處理。接頭適用的工作壓力最高可達(dá)63MPa，無(wú)縫鋼管外徑最大為42mm。Bite type fitting consists of three parts: body, cutting ring and nut. When tightening nut, cutting ring is driven forward on

16、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

17、type fitting can be used in system with Max 63MPa. The connection tube OD is Max 42mm.卡套接頭的裝配BITE TYPE TUBE FITTINGS ASSEMBLY INSTRUCTIONS 安裝Assembly1 鋸下合適長(zhǎng)度的無(wú)縫鋼管，去除端口處毛刺。管子端面要與軸線(xiàn)垂直，角度公差不大于0.5°。如果管子需要折彎，則從管子端面至彎曲部位的直線(xiàn)段長(zhǎng)度不能少于三倍螺母長(zhǎng)度。Cut the tube at right angle and de-burr inside and outside of tu

18、be end. Minimum straight length of tube from the starting point of tube bend to the tube end may be 3 times height of the nut.2 把螺母和卡套套在無(wú)縫鋼管上。注意螺母和卡套的方向，不要裝反了。Set a nut and cutting ring on the tube. Make sure the cutting ring and the nut are facing the fitting.3 在預(yù)裝配接頭體螺紋和卡套上涂上潤(rùn)滑油，把管子插入接頭體，（管子一定要插到底

19、）用手旋緊螺母。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 hand-tighten the nut.4 擰緊螺母直至卡套卡住管子，這個(gè)轉(zhuǎn)折點(diǎn)可以通過(guò)擰緊力矩的增加感覺(jué)到( 壓力點(diǎn))。Tighten nut until ferrule grips tube which is felt by a noticeable incr

20、ease in torque (increase in force).5. 達(dá)到壓力點(diǎn)后，再將壓緊螺母擰緊1/2 圈。Tighten nut 1/2 of a turn after increase in force.6. 將預(yù)裝配接頭體拆下，檢查卡套刃邊的嵌入情況，可見(jiàn)的突起帶必須填滿(mǎn)卡套端面的空間?？ㄌ卓梢陨孕D(zhuǎn)，但不能軸向推移。Disassembly the pre-assembly fitting body .Check penetration of cutting edge.A visible ring of material should fill the space in fro

21、nt of the profile ring end face. Profile ring may turn on tube,but should not be capable of axial displacement. 7. 最終安裝，將實(shí)際安裝中的接頭體的螺紋涂上潤(rùn)滑油、壓緊螺母與之配合擰至可感覺(jué)到的擰緊力增加為止. 接著再擰緊1/2 圈安裝完畢。Lubricate the fitting body to be subsequently installed.Tighten nut until a noticeable increase in force is required.Tight

22、en nut by 1/2 of a turn beyond this point for final assembly. 重復(fù)安裝Reassembly所有的卡套接頭都可以多次重裝，但要保證零件無(wú)損壞且清潔。Fitting can be used many times. To ensure this, parts must be clean and free of defects.1 把管子插入接頭體直至卡套貼緊接頭體內(nèi)錐面，用手?jǐn)Q緊螺母。Insert the tube into fitting body until cutting ring seats firmly in the fitti

23、ng and hand-tighten the nut.2 用扳手?jǐn)Q緊螺母，直至擰緊力矩急劇增大，再擰緊1/4 至1/2 圈即可。Tighten the nut with a wrench by holding the fitting body with a backup wrench until a sharp rise in torque is felt. Further tighten the nut 1/4 to 1/2 turn. 檢查Checking up the bite condition可拆下管子檢查裝配是否合乎要求：卡套端部的管子上應(yīng)該有均勻的輕微凸起。卡套不能前后滑動(dòng)，但

24、允許有輕微轉(zhuǎn)動(dòng)。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 that doesn't mean wrong installation. The cutting

25、 ring shall be refitted once the nut is retightened. 泄漏原因Leakage reason1 管子沒(méi)插到底。When the tube is not fully bottomed2 螺母沒(méi)有擰緊。When the nut is not tightened enough3 管子外表刮傷或管子不圓。When the tube is of scratches or oval4 管子太硬。When the tube is extremely hard擴(kuò)口式接頭FLARED TUBE FITTINGS 擴(kuò)口式接頭概述FLARED TUBE FITTIN

26、GS INSTRUCTIONS 擴(kuò)口式管接頭采用圖8 的結(jié)構(gòu)型式，由三部分組成：接頭體、襯套、螺母。鋼管端口擴(kuò)口角為37°。使用時(shí)鋼管的37°擴(kuò)口角緊壓在接頭體的錐面上，形成金屬密封。使用襯套能吸收并減少管路振動(dòng)和管子疲勞，并且擰緊螺母時(shí)，鋼管不會(huì)跟著轉(zhuǎn)動(dòng)。 As shown in Fig. 8,the fitting consists of three pieces:the body,sleeve and nut.The tube end is flared at a 37° angle and held between the fitting nose and

27、 the sleeve with the nut,providing a very effective seal between the fitting nose and the tube flare. 擴(kuò)口式管接頭的連接螺紋有兩種：公制螺紋（見(jiàn)C1-C），美制JIC 螺紋（見(jiàn)I1-I）。 The flared tube fitting has two connected thread:metric thread (see C1-C) and JIC thred (see I1-I). 擴(kuò)口式管接頭安裝方便，不用焊接，廣泛用于中低壓管路系統(tǒng)。由于是金屬對(duì)金屬的硬密封，因此適用溫度范圍大。 It

28、 is easy to assemble without weld.It is especially suited for low and medium pressure tube systems.As metal to metalseal,is allows wide operting temperature range for many applications.擴(kuò)口式接頭安裝 FLARED TUBE FITTINGS ASSEMBLY INSTRUCTIONS 安裝Assembly1 在安裝前應(yīng)先垂直鋸下鋼管（± 1°以?xún)?nèi)），去掉內(nèi)外徑毛刺，清除臟物，需要時(shí)套上襯套、

29、螺母后在專(zhuān)用設(shè)備上擴(kuò)口。且尺寸D 應(yīng)在D1 和D2 之間，見(jiàn)圖9。Cut tube reasonably square (within +/- degree).Lightly deburr the I.D. and O.D. of the tube end to remove burrs and dirt Set a nut and sleeve on the tube.2 擴(kuò)口式管接頭半數(shù)以上的泄漏是由于擴(kuò)口或安裝不當(dāng)引起的。安裝時(shí)應(yīng)使鋼管、擴(kuò)口軸線(xiàn)與接頭體錐面軸線(xiàn)同心。Over half of the leakage with flared fittings is caused by im

30、poper flaring or installation.When assembled ,the tube,the tube flare and the fitting nose should be aligned.3 將管子擴(kuò)口面與接頭體錐面對(duì)準(zhǔn)貼緊后，用手?jǐn)Q緊螺母，再用扭矩扳手按P 的扭矩建議表扳緊；如無(wú)扭矩扳手，可用普通扳手再擰緊1 到2 圈，一般大規(guī)格1 圈，小規(guī)格2 圈。Thread the nut onto the fitting body by hand and tighten it to the recommended torque table with a torque w

31、rench.If torque wrenches are not available, tighten 1 to 2 turns with general wrench.In general ,the small fitting is tighten about 1 turn and the large fitting is tighten about 2 turns. 重復(fù)安裝Reassembly所有的擴(kuò)口式接頭都可以多次重裝，但要保證零件無(wú)損壞且清潔。注意擴(kuò)口無(wú)開(kāi)裂。Fitting can be used many times. To ensure this, parts must be

32、clean and free of defects. no tube cracked . 泄漏原因Leakage reason1 安裝時(shí)未對(duì)準(zhǔn)，鋼管、擴(kuò)口軸線(xiàn)與接頭體錐面軸線(xiàn)不同心，強(qiáng)制將管子扳到位。When assembled ,the tube,the tube flare and the fitting nose are not aligned.2 擰緊力矩過(guò)大或過(guò)小。The tighten force is too large or too small.3 管子擴(kuò)口處開(kāi)裂。The tube flare is cracked.4 接頭體或管子擴(kuò)口處的密封面上有影響密封的雜質(zhì)、凹坑等。Th

33、e fitting body or the tube flare is collapsed.5 連接螺母松開(kāi)。The connected nut is loosen.6 過(guò)大的扭矩或多次重復(fù)使用造成接頭結(jié)合密封面損壞，喪失密封能力。The sealing suface is damaged.7 管子擴(kuò)口太大或太小，不能與接頭體很好的貼合密封。The tube flare is too large or too small,so the seal between the fitting nose and the tube flare is not effective. 錐管螺紋接頭TAPER T

34、HREAD FITTINGS 錐管螺紋接頭概述TAPER THREAD FITTINGS INSTRUCTIONS 錐管螺紋接頭的連接螺紋有三種：美制NPT 即60°密封錐管螺紋（GB/T 12716、ANSI/ASME B1.20.1）；美制NPTF 干密封錐管螺紋（ANSI B1.20.4）；英制BSPT 即55°密封錐管螺紋（GB/T 7306）。 The connected thread has three types:NPT,NPTF and BSPT. NPT、BSPT 螺紋連接時(shí)，必須使用密封料，NPTF 可以形成金屬對(duì)金屬的密封，但使用時(shí)也常常用密封料。密封

35、料可以有多種，如：生料帶、密封膠、厭氧膠、防振密封膠等。 NPT、BSPT threads should be assembled with sealant.Pipe thread sealants are available in various forms such as drypre-applied,tape,paste and anaerobic liquid. 由于安裝時(shí)使用了密封帶、膠等，如果安裝不當(dāng)，會(huì)對(duì)油液造成污染，甚至堵塞油路。 Teflon tape,paste,if not applied properly,can contribute to system contami

36、nation. 小規(guī)格螺紋比大規(guī)格的密封效果要好，一般3/4" 以下密封可靠性好。 直通接頭用錐螺紋時(shí)，連接會(huì)比較緊湊，但用于三通或角彎等異型接頭時(shí)，則較難控制方向，因此建議選用ISO 6149、ISO 11926 等可調(diào)向接頭。錐管螺紋接頭安裝 TAPER THREAD FITTINGS ASSEMBLY INSTRUCTIONS 安裝Assembly1 檢查油口及連接螺紋，保證無(wú)臟物、毛刺及其他異物。Inspect port and connectors to ensure that threads on both are free of dirt,burrs and exces

37、sive nicks.2 在外螺紋上加密封料。但在第1、2 牙螺紋上不要覆蓋密封料，以免污染系統(tǒng)油液。加生料帶時(shí)應(yīng)按順時(shí)針?lè)较颍◤墓芏丝矗┰谕饴菁y上纏繞1.5 圈到2 圈。Apply sealant to male pipe threads.With any sealant,the first one or two threads should be left uncovered to avoid systemcontamination.If Teflon tape is used it should be wrapped 1.1/2 to 2 turns in clockwise direc

38、tion when viewed from the pipethread end.3 用手?jǐn)Q緊，再用扳手扳緊1.5 到3 圈，一般小規(guī)格扳緊2.5 圈左右，大規(guī)格扳緊2 圈左右。First tighten the fitting with hand,then with a wrench 1.1/2 to 3 turns.In general ,the small fiiting is tighten about 2.5s turn andthe large fitting is tighten about 2 turns. 重復(fù)安裝Reassembly錐管螺紋接頭可以重復(fù)安裝，重復(fù)安裝時(shí)應(yīng)檢查

39、密封料是否已損耗，需要時(shí)將接頭清理干凈后重新加密封料安裝。The taper thread fitting can be reassembled.When reassembled,check if sealant has worn thin. 泄漏原因Leakage reason1 沒(méi)有使用密封料或密封料已損耗。There is no sealant used or sealant has worn thin.2 螺紋已磨損。Threads are galled.3 螺紋制造不正確，接頭螺紋已進(jìn)入油口很深但仍未旋緊。Fitting screws in too far into the port

40、.4 螺紋有嚴(yán)重缺口或刻痕。Threads are severely nicked.5 因振動(dòng)導(dǎo)致螺紋松動(dòng)。Threads are loosen. 硬管管路的正確布置 Routing of Tube Lines安裝布置硬管管路時(shí)，應(yīng)注意下列幾點(diǎn)：Routing of lines should have the follwing characteristics: 管子長(zhǎng)度要短，管徑要合適，流速過(guò)高會(huì)損失能量 The length of tube should be short and tube O.D. should be suitable. 兩固定點(diǎn)之間的連接，應(yīng)避免緊拉，需有一個(gè)松彎部分，如圖1 所示，以便于裝卸，也不會(huì)因熱脹冷縮而造成嚴(yán)重的拉應(yīng)力。 The tube is in long lines to allow for expansion and contraction,as shown in Fig. 1. 管子的彎管半徑應(yīng)盡可能大，其最小彎管半徑約為硬管外徑的2.5 倍。管端處應(yīng)留出直管