管件中英文对照
管件中英文对照
等径直通equal coupling
异径直通reducing coupling ?内牙直通femalecoupling ?外牙直通 straighttube with outside
45等径弯头 45 equalelbow ?外牙弯头 male elbow 90等径弯头 90 equal elbow?
内牙弯头female elbow ?等径三通 equal tee ?异径三通reducing tee ?内牙三通female tee ?外牙三通 male tee?管帽cap
sch代表压力
lr长半径或1倍半?大小SIZE ?数量 QTY?碳钢弯头 CarbonSteel Elbow?不锈钢弯头 Stainless Steel Elbow
高压弯头High-PressureElbow
同心异径管Concentric Reducers?偏心异径管 Eccentric Reducers ?高压异径管 High -pressureReducers ?不锈钢等径三通 Stainless Straight Tee ?碳钢等径三通Carbon Straight Tee?不锈钢等径四通Stainless Straight Cross ?高压三通High—pressure Tee
锻制三通Forged Tee ?异径接头 Template ?管帽Caps?法兰flange ?长径与短径弯头long and shortradius elbows ?同心与偏心异径接头concentricand eccentric reducers ?等径与异径三通 straight and reducing outlet tees?大小头CONCENTRIC REDUCER
Tee Equal 相等得三通?等径三通Straight Tee
异径三通 Reducing Tee ?等径四通 Straight Cross
90°短半径弯头90°SS Elbow (SR)
90°长半径弯头90°SSElbow (LR)?高压厚壁弯头Thickness Elbow
U型管 Return Bend?盲法兰Blank Flange?弯管 Bends
翻边stubends?异径接头 reducers?公称通径 nominal diameter
外径(mm)outside diameter
中心距至端面得距离center to end
理论重量(kg/pcs) approx weight
description 类种?Standard标准?Design类型?Material材质
双丝头Nipple
短节SWAGE NIPPLE ?内外螺纹活接头Union
螺桩stud ?Half-Coupling单承口管箍
Coupling双承口管箍?盲板 Blind Flange ?spectacle blind 带双圈得盲板
Ecentric偏心得
拆除:dismantle?结头(管线得):tie—in
插盲板:slip spade?盲板:blank?接头:fitting ?加热器:heater?金属缠绕垫片(带外环):SW with outsidering
HR:热轧?on site:?manifold:管汇
1、2 管件 Fitting?弯头 elbow?异径弯头reducingelbow
带支座弯头base elbow? k半径弯头long rad ius elbow
短半径弯头 short radius elbow?长半径180°弯头 long radi us return?短半径180°弯头 shortradius return
?带侧向口得弯头(右向或左向)side outlet elbow(right hand or left
hand)?双支管弯头(形) double branch elbow
三通 tee?异径三通reducingt
ee?等径三通 straight tee
带侧向口得三通(右向或左向) side outlet tee (right hand or1eft hand)?异径三通(分支口为异径)reducing tee (reducing on outlet)
异径三通(一个直通口为异径)reducing tee (reducing on one run)
带支座三通base tee
异径三通(一个直通口及分支口为异径)reducing tee(reducing on one runand? outlet)?异径三通(两
个直通口为异径,双头式) reducingtee (reducing on bothruns,
? bull head)? 45°斜三通45°lateral
45°斜三通(支管为异径) 45° lateral(reducing onbranch)? 45°斜三通(一个直通口为异径) 45° lateral (reducing on one run)
45°斜三通(一个直通口及支管为异径) 45° lateral (reducing on one run and? branch)? Y型三通(俗称裤衩) true
“Y”?四通cross
等径四通straight cross?异径四通 reducing cross
异径四通(一个分支口为异径)reducingcross (reducing
on one outlet)
异径四通(一个直通口及分支口为异径) reducing cross (reducing
on one run ? and outlet)?异径四通(两个分支口为异径) reducing cross (reducing onbothoutlet)
异径四通(一个直通口及两个分支口为异径) reducingcross (reducing
on one run? and bothoutlet)
异径管 reducer?同心异径管 concentric reducer
?偏心异径管 eccentric reducer
锻制异径管 reducing swage?螺纹支管台threadolet
焊接支管台weldolet?承插支管台sockol
et?弯头支管台 elbolet
斜接支管台 latrolet?镶入式支管嘴 sweepolet
短管支管台 nipolet?支管台,插入式支管台
boss?管接头coupling,full coupling?半管接头half coupling?异径管接头reducing coupling
活接头union
内外螺纹缩接(俗称补芯)bushing
管帽cap (C)
堵头plug
短节 nipple?异径短节 reducing nipple; swage
nipple
1管道组成件Piping ponent?1、1 管子Pipe
管子(按照配管标准规格制造得) pipe
管子(不按配管标准规格制造得其她用管) tube?钢管 steel pipe
铸铁管cast ironpipe
衬里管 lined pipe?复合管clad pipe?碳钢管 carbon steel pipe?合金钢管 alloy steel pipe?不锈钢 stainless steel pipe
奥氏体不锈钢管 austenitic stainless steel pipe?铁合金钢管ferritic alloy steel pipe?轧制钢管wrought-steel pipe
锻铁管 wrought-iron pipe
无缝钢管seamless (SMLS) steelpipe?焊接钢管welded steelpipe?电阻焊钢管electric—resistance welded steel pipe
电熔(弧)焊钢板卷管electric-fusion (arc)—welded steel-plate pipe
螺旋焊接钢管 spiral welded steel pipe?镀锌钢管 galvanized steel pipe?热轧无缝钢管hot—rolling seamless pipe
冷拔无缝钢管 cold—drawing seamless pipe?水煤气钢管 water-gassteel pipe塑料管plastic pipe?玻璃管glass tube
橡胶管 rubber tube
直管 run pipe; straight pipe?1、2管件 Fitting?弯头 elbow
异径弯头reducing elbow
带支座弯头 base elbow
k半径弯头long radiuselbow?短半径弯头 short radius elbow?长半径180°弯头long radius return
短半径180°弯头short radius return
带侧向口得弯头(右向或左向)side outletelbow (righthand or left hand)
双支管弯头( 形) double branch elbow?三通tee
异径三通 reducing tee
等径三通straight tee
带侧向口得三通(右向或左向) side outlet tee (right hand or 1eft hand)
异径三通(分支口为异径) reducing tee (reducingon outlet)
异径三通(一个直通口为异径)reducing tee(reducingon one run)?带支座三通basetee
异径三通(一个直通口及分支口为异径) reducing tee (reducing on one run andoutlet)
异径三通(两个直通口为异径,双头式)reducing tee(reducing onboth runs, bull head)?45°斜三通45° lateral
45°斜三通(支管为异径)45° lateral(reducing onbranch)
45°斜三通(一个直通口为异径) 45° lateral(reducing on one run)
45°斜三通(一个直通口及支管为异径) 45° lateral (reducing on one run and branch)
Y型三通(俗称裤衩) true“Y"
四通cross?等径四通straight cross
异径四通reducing cross
异径四通(一个分支口为异径)reducing cross(reducing onone outlet)
异径四通(一个直通口及分支口为异径) reducing cross (reducing on onerun and outlet)
异径四通(两个分支口为异径)reducingcross (reducing onbothoutlet)异径四通(一个直通口及两个分支口为异径) reducing cross(reducing on one runand both outlet)?异径管reducer
同心异径管 concentric reducer?偏心异径管 eccentric reducer
锻制异径管 reducing swage?螺纹支管台threadolet
焊接支管台weldolet?承插支管台 sockolet?弯头支管台elbolet?斜接支管台 latrolet?镶入式支管嘴sweepolet?短管支管台 nipolet
支管台、插入式支管台boss?管接头 coupling,full coupling
半管接头half coupling?异径管接头 reducing coupling?活接头union?内外螺纹缩接(俗称补芯)bushing
管帽cap(C)?堵头 plug
短节nipple?异径短节reducing nipple;swage nipple
1、3弯管Bend?预制弯管fabricatedpipe bend?跨越弯管(^形) cross-over bend
偏置弯管(~形) offset bend
90°弯管quarter bend?环形弯管 cirele bend?单侧偏置90°弯管(?形)single offset quarter bend?S形弯管“S” bend
单侧偏置U形膨胀弯管(|?形) singleoffset“U" bend?U形弯管“U” bend?双偏置U膨胀弯管 doubleoffset expansion “U”bend?斜接弯管 mitre bend
三节斜接弯管 3-piece mitre bend?折皱弯管 corrugated bend?圆度roundne
ss?1、4 法兰 Flange(FLG)?整体管法兰integral pipe flange
钢管法兰steel pipe flange?螺纹法兰threaded flange
滑套法兰(包括平焊法兰)slip-on flange(SO); slip-on welding flange
承插焊法兰 socket welding flange?松套法兰lap jointflange (LJF)
对焊法兰 welding neckflange(WNF)
法兰盖 blind flange, blind
孔板法兰orifice flange
异径法兰 reducing flange?盘座式法兰 pad type flange?松套带颈法兰 loose hubbed flange?焊接板式法兰 welding plate flange
对焊环 welding neck collar (与stub end相似)
平焊环welding-on collar
突缘短节 stub end,lap
翻边端lapped pipe end
松套板式法兰 loose plate flange?压力级 pressure rating,pressure ratingclass?压力-温度等级 pressure-temperature rating
法兰密封面,法兰面 flange facing
突面raised face (RF)?凸面 male face (MF)
凹面female face (FMF)?榫面tongue face
槽面groove face?环连接面 ring joint face?全平面、满平面 flat face; full face(FF)?光滑突面 smooth raised face (SRF)
法兰面加工 facing finish
粗糙度roughness?光滑得 smooth
齿形 serrated?均方根 root mean square (RMS)
算术平均粗糙高度 arithmetical average roughnessheight (AARH)?配对法兰panion-flange?螺栓圆bolt circle(B、C、)
1、5垫片Gasket (GSKT)
垫片得型式 type of gasket?平垫片flat gasket
环形平垫片flat ringgasket
平金属垫片flat metal gasket?夹棉织物得橡胶elastomer with cotton fabric insertion?夹石棉织物得橡胶 elastomer with asbestos fabric insertion?夹石棉织物及金属丝加强得橡胶 elastomer withasbestos fabric insertion and with wire reinforcement
无石墨压缩白石棉垫片 non graphited pressed white asbestos gasket?天然白橡胶垫片natural white rubber gasket
压缩石棉垫片pressed asbestos class gasket?浸聚四氟乙烯得石棉垫片PTFE
impregnated asbestosgasket?夹石棉得缠绕金属垫片spiral-woundmetalgasket with asbestos filler?内环inner ring
外环,外定位环outer ring
波纹金属垫片 corrugated metalgasket?波纹金属包嵌石棉垫片 corrugated metal gasket withasbestos inserted?双夹套波纹金属包石棉垫片 corrugatedmetal double jacketed asbestos filled gasket?双夹套垫片 double jacketed gasket
金属包石棉平垫片 flat metal jacketed asbestos filled gasket
整体金属齿形垫片solid metal serrated gasket
槽形金属垫片grooved metal gasket
环形连接金属垫片ringjoint metal gasket
八角环形垫片 octagonal ring gasket
椭圆环形垫片 oval ringgasket?透镜式垫片lens gasket?非金属垫片 non-metallicgasket?1、6阀门 Valve?1、6、1阀门结构、零件
阀轭yoke?外螺纹阀杆及阀轭outside screw and yoke (OS &Y)?阀杆stem?内螺纹inside screw (IS)?阀轭套yoke sleeve?阀杆环 stem ring?阀座 valve seat(body seat)?阀座环、密封圈seatring?整体(阀)座 integral seat?堆焊(阀)座 depositedseat?阀芯(包括密封圈、杆等内件)trim
阀盘 disc?阀盘密封圈 disc seat
阀体 body?阀盖 bonnet
阀盖衬套 bonnetbush
螺纹阀帽screwcap?螺纹阀盖 screw bonnet
螺栓连接得阀盖 bolted bonnet(BB)?活接阀盖(帽) union bonnet (cap)
螺栓连接得阀帽 boltedcap(BC)
焊接阀盖welded bonnet (WB)
本体阀杆密封 body stem seal?石棉安全密封asbestos emenen seal?倒密封 back seal?压力密封得阀盖pressure—tight bonnet?动力操纵器 powered operator?电动操纵器 electric motor operator?气动操纵器pneumatic operator?液压操纵器hydraulicoperator
快速操纵器 quick—acting operator
滑动阀杆sliding stem?正齿轮传动 spur gear operated
伞齿轮传动 bevel gearoperated
扳手操作 wrench operated?链轮chain wheel
手轮hand wheel
手柄hand lever (handle)?气缸(或液压缸)操纵得cylinderoperated
链条操纵得chain operated
等径孔道 full bore;full port
异径孔道 reducing bore,reduced port,venturi port?短型 short pattern?紧凑型(小型)pact type?笼式环 lantern ring
压盖gland?阀杆填料stem packing
阀盖垫片 bonnet gasket?升杆式(明杆) rising stem (RS)?非升杆式(暗杆) non-rising stem (NRS)?指示器/限位器 indicator/stopper
注油器grease injector
可更换得阀座环 renewable seat ring?1、6、2常用阀?(1)闸阀 gate valve
平行双闸板 double disc parallel seat
开口楔形闸板 splitwedge?挠性整体楔形闸扳 flexible solid wedge?整体楔形闸板 s olid wedge
塞型闸阀 plug gatevalve
直通型闸阀 through conduit gate valve?(2) 截止阀globe valve
球心型阀盘 globe type disc?塞型阀盘 plug type disc
可转动得阀盘swiveldisc
(3)节流闪阀 throttle valve
针阀 needle valve?(4)角阀angle valve
(5) Y型阀(Y型阀体截止阀)Y-valve(Y-body globevalve)?(6)球阀 ball valve?三通球阀 3-way ball valve?装有底轴得 trunnion mounted
耐火型fire safe type?浮动球型 floating ball type?防脱出阀杆 blowout proof stem?(7)蝶阀 butterfly valve?对夹式(薄片型) wafer type
凸耳式 lug type
偏心阀板蝶阀offset disc burerfly valve;eccentric butterfly valve?斜阀盘蝶阀 canted disc butterfly valve?连杆式蝶阀 link butterfly valve
8)柱塞阀 piston type valve?(9)旋塞阀plug valve
三通旋塞阀three—way plug valve?四通旋塞阀four-wayplugvalve
旋塞cock
衬套旋塞sleeve cock
(10)隔膜阀 diaphragmvalve?橡胶衬里隔膜阀 rubber lined diaphragm valve
直通式隔膜阀 straight waydiaphragm valve
11)夹紧式胶管阀pinch valve(用于泥浆、堰式隔膜阀weirdiaphragm valve?(
粉尘等)?(12) 止回阀check valve
升降式止回阀lift check valve
旋启式止回阀swing check valve, flapcheck valve
落球式止回阀ball check valve
弹簧球式止回阀 spring ball check valve?双板对夹式止回阀 dual plate wafer type check valve?无撞击声止回阀 non—slam cheek valve?底阀 foot valve
切断式止回阀stop check valve;non-return valve
活塞式止回阀piston check valve
斜翻盘止回阀 tilting disc check valve
蝶式止回阀butterfly check valve
1、6、3其它用途得阀
安全泄气阀 safety valve(SV)?安全泄液阀 relief valve (RV)
安全泄压阀 safety relief valve
杠杆重锤式lever and weight type
引导阀操纵得安全泄气阀 pilot operated safety valve?复式安全泄气阀 twin type safety valve
罐底排污阀 flush—bottom tankvalve?电磁阀solenoid valve,solenoid operated valve?电动阀 electrically operated valve, electric-motoroperated valve
气动阀 pneumatic operated valve?低温用阀cryogenic servicevalve?蒸汽疏水阀 steam trap?机械式疏水阎 mechanical trap?浮桶式疏水阀open bucket trap, open top buckettrap?浮球式疏水阀 floattrap
倒吊桶式疏水阀 inverted bucket trap?自由浮球式疏水阀 loosefloat trap?恒温式疏水阀 thermostatic trap
金属膨胀式蒸汽疏水阀metal expansion steam trap
液体膨胀式蒸汽疏水阀 liquid expansion steam trap
双金属膨胀式蒸汽疏水阀bimetallic expansion steamtrap?压力平衡式恒温疏水阀balanced pressure thermostatic trap?热动力式疏水阀 thermodynamic trap 脉冲式蒸汽疏水阀 impulse steam trap
放气阀(自动放气阀) airvent valve(automatic air vent valve) (疏水阀用)
平板式滑动闸阀 slabtype sliding gatevalve?盖阀 flatvalve?换向阀diverting valve, reversing valve
热膨胀阀 thermo expansionvalve?自动关闭阀self-closing gate valve?自动排液阀self—draining valve?管道盲板阀 line—blind valve
挤压阀squeezevalve(用于泥浆及粉尘等)
呼吸阀 breather valve?风门、挡板damper?减压阀 pressure reducing valve, reducing valve?控制阀 control valve?膜式控制阀 diaphragm operated control valve?执行机构 actuator?背压调节阀 backpressure regulating valve?差压调节阀 differential pressure regulating valve?压力比例调节阀pressure ratio
regulating valve?1、6、4 未指明结构(或阀型)得阀
切断阀 block valve; shut-offvalve;stop valve?调节阀 regulating valve?快开阀
quickopening valve
快闭阀quickclosing valve?隔断阀isolating valve
三通阀 threeway valve?夹套阔 jacketedvalve?非旋转式阀 non—rotary valve?排污阀blowdown valve?集液排放阀drip valve?排液阀 drain valve
放空阀vent valve
卸载阀 unloading valve?排出阀 discharge valve
吸入阀suction valve?多通路阀 multiport valve?取样阀sampling valve
手动阀 hand—operated valve; manually operated valve?锻造阀 forged valve?铸造阀 cast valve
(水)龙头 bibb;bib; faucet
抽出液阀(小阀) bleed valve?旁路阀by—pass valve?软管阀hosevalve?混合阀 mixing valve?破真空阀 vacuum breaker?冲洗阀 flush valve?第一道阀;根部阀 primaryvalve
根部阀 root valve?总管阀 header valve
事故切断阀emergency valve
1、7管道特殊件 Piping Specialty?1、7、1管道特殊件(组件)?粗滤器 strainer?过滤器filter?临时粗滤器(锥型) temporarystrainer(cone type)
y 型粗滤器 y-type strainer?T型粗滤器T—type strainer?永久过滤器permanentfilter?丝网粗滤器gauze strainer
洗眼器及淋浴器 eye washer and shower
视镜 sight glass
阻火器flame arrester?喷嘴;喷头 spray nozzle
取样冷却器sample cooler
消声器 silencer
膨胀节 expansionjoint?波纹膨胀节 bellow expansion joint?单波single bell ow
双波doublebellow
多波 multiple bellow?压力平衡式膨胀节pressure balanced expansion?带铰链膨胀节hinged expansion joint?轴向位移型膨胀节axial movementtype expansionjoint
自均衡膨胀节(外加强环)self-equalizing expansion joint?带接杆膨胀节tied expansion joint?万向型膨胀节 universal type expansion joint
球形补偿器ball type expansion joint?填函式补偿器 slip type (packed type) expansionjoint?单向滑动填料函补偿器 single actionpacked slip joint?1、7、2 管道特殊元件Piping SpecialElement?软管接头hose connection (HC)
快速接头quick coupling
金属软管metalhose?橡胶管rubber hose
挠性管flexible tube
鞍形补强板 reinforcing saddles?补强板reinforcement pad?特殊法兰 special flange
漏斗 funnel
排液环 dripring
排液漏斗 drain funnel?插板blank
垫环spacer
8字盲板spectacleblind;figure 8blind
限流孔板 restrictionorifice?爆破片rupture disk
法兰盖贴面 protective disc?费托立克接头 victauliccoupling?1、8 端部连接End Connection?法兰端flanged end
坡口端beveled end (BE)?对焊端 butt welded end?平端 plain end (PE)?承插焊端socket welding end?螺纹端 threaded end (TE)
承口 bell end
焊接端welding end?法兰连接(接头) flanged joint
对焊连接(接头) buttwelded joint?螺纹连接,管螺纹连接threaded joint, pipe threaded joint
锥管螺纹密封焊连接seal-welded taper pipethreaded joint
承插焊连接(接头) socket welded joint
承插连接(接头)bell and spigot joint
环垫接头 ring joint (RJ)?万向接头 universal joint?软钎焊连接(接头)soldered
joint?搭接接头,松套连接 lapped joint?外侧厚度切斜角 bevel for outside thickn css
内侧厚度切斜角 bevelfor inside thickness?内外侧厚度切斜角 bevel for bined thickness?法兰式得 flanged(FLGD)?对焊得butt welded (BW)
螺纹得 threaded (THD)?承插焊得 socket welded(SW)?小端为平得 smallend plain(SEP)
大端为平得largeend plain(LEP)
两端平both ends plain(BEP)?小端带螺纹small endthread(SET)
大端带螺纹 large end thread (LET)
两端带螺纹both end thread (BET)
一端带螺纹 one end thread(OET)
支管连接 branch connection
焊接支管branchpipe welded directly to therun pipe
管件的英文对照表
管件的英文对照表活接 活接loosejoint 活接地swingingearth 活接结合articulatedjoint 活接联接器jointcoupling 活接三通uniontee 活接头articulation;unionswivel;union 活接头螺母unionnut 活接头螺栓swingbolt 活接头套管unionthimble 活接卸槽articulatedchute(浇混凝土用的)弯头 弯头anglefittings;bentpipe;elbow;knee 弯头扳手bent-handlewrench;bentspanner 弯头车刀angulartool 弯头持针钳curvedneedleholders 弯头刀架kneetool 弯头道钉brob 弯头管swanneck 弯头键gibheadkey
弯头接合knee-joint 弯头螺栓boltwithoneendbentback 弯头锁紧螺母elbowjamunt 弯头套管elbowunion 弯头套筒扳手offsetsocketwrench 弯头脱水器elbowseparator 弯头芯盒elbowcorebox 三通 三通玻璃栓three-wayglassstopcock 三通道放大器three-channelamplifier;three-pathamplifier 三通道自动驾驶仪three-dimensionalautopilot 三通电缆分线盒three-waycouplingbox 三通阀teevalve;three-portvalve;three-wayvalve;triplevalve 三通阀盖triple-valvecap 三通阀活塞triple-valvepiston 三通阀联箱threewayvalvemenifold 三通阀体triplebody;triple-valvebody 三通管singlesweeptee;T-branch(pipe);three-limbtube 三通管接头teepipecoupling 三通横长horizontallengthoftee 三通换向旋塞three-wayreversingcock
管件标准中英文对照
管件标准中英文对照 Standard Code 规范代号 Standard Name 规范名称 ASME SA-234 中、高温用钢制碳钢和合金钢管道配件 Medium and high temperature used carbon and alloy steel pipe fittings ASME SA-420 低温用锻制碳钢和合金钢管配件 Low temperature forged carbon and alloy steel pipe fittings ASME SA-403 锻制奥氏体不锈钢管配件 Forged Durimet pipe fittings ASME B16.9 工厂制造的钢制对焊管件 Factory-Made wrought steel pipe fittings ASME B16.11 承插焊和螺纹锻钢管件 Socket-welding and Threaded forged fittings ASME B16.28 锻钢对焊小半径弯头和回弯头 Wrought steel butt-welding short radius elbows and returns ISO 5251 不锈钢对焊管件 Stainless steel butt-welding fittings MSS SP-43 锻制不锈钢对焊管件 Wrought stainless steel butt-welding fittings MSS SP-75 锻钢制对焊管件 Forging butt-welding fittings MSS SP-79 承插焊异径插入件 Socket-welding reducing Inserts MSS SP-83 3000磅级的钢制承插焊和螺纹活接头 Class 3000 steel socket-welding and threaded unions MSS SP-95 缩渐管和圆堵头 Swaged nipples and round plugs MSS SP-97 承插焊、螺纹和对焊端的整体加紧式管座 SW 、TH and BW ends for integrally reinforced forged branch outlet JIS B2311 通用钢制对焊管件 Universal steel butt-welding pipe fittings JIS B2312 钢制对焊管件 Steel butt-welding pipe fittings JIS B2313 钢板制对焊管件 Steel plate butt-welding pipe fittings JIS B2316 钢制承插焊管件 Steel socket-welding pipe fittings DIN 2605 钢制对焊管件弯头和弯管 Steel butt-welding pipe fittings.elbows and bends DIN 2615 钢制对焊管件三通 Steel butt-welding pipe fittings.tees DIN 2616 钢制对焊管件异径管 Steel butt-welding pipe fittings.reducers
管件中英文对照表(常用)
碳钢弯头 Carbon Steel Elbow 不锈钢弯头 Stainless Steel Elbow 高压弯头 High-Pressure Elbow 同心异径管 Concentric Reducers 偏心异径管 Eccentric Reducers 高压异径管 High-pressure Reducers 不锈钢等径三通 Stainless Straight Tee 碳钢等径三通 Carbon Straight Tee 不锈钢等径四通 Stainless Straight Cross 高压三通 High-pressure Tee 锻制三通 Forged Tee 异径接头 Template 管帽 Caps 法兰flange 长径和短径弯头 long and short radius elbows 同心和偏心异径接头 concentric and eccentric reducers 等径和异径三通 straight and reducing outlet tees 大小头 CONCENTRIC REDUCER 相等的三通Tee Equal 等径三通Straight Tee 异径三通Reducing Tee 等径四通Straight Cross 90°短半径弯头90°SS Elbow(SR) U型管Return Bend
90°长半径弯头90°SS Elbow (LR) 高压厚壁弯头Thickness Elbow 盲法兰Blank Flange 弯管Bends 翻边stub ends 异径接头reducers 公称通径 nominal diameter 外径(mm) outside diameter 中心距至端面的距离 center to end 理论重量(kg/pcs) approx weight 类种description 标准Standard 类型Design 材质Material 双丝头 Nipple 同心异径短节 SWAGE Nipple 活接头 Union PLUG HEX HEAD六角管堵 PLUG HEX HEAD SCRD六角螺纹管堵 MPT螺纹 RC螺纹螺桩 stud SWAGE (CONC)同 心异径短节 单承口管箍 Half-Coupling 异径管箍Coupling, Reducing 盲板 Blind Flange 带双圈的盲板spectacle blind 偏心的Ecentric 等径直通equal coupling 内牙直通 female coupling 外牙直通 straight tube with outside 90等径弯头 90 equal elbow 45等径弯头 45 equal elbow
管件中英文对照表
1.2 管件 Fitti ng 弯头elbow 异径弯头 reducing elbow 带支座三通 base tee 异径三通(一个直通口及分支口为异径) reduc ing tee (reduc ing on one run and outlet) 异径三通(两个直通口为异径,双头式) head ) 45 ° 斜三通 45 ° lateral reduc ing tee (reduc ing on both runs, bull 45 ° 斜三通(支管为异径) 45 ° lateral (reduci ng on bran ch) 45 ° 斜三通(一个直通口为异径 )45 ° lateral (reducing on one run) 45 ° 斜三通(一个直通口及支管为异径 )45 ° lateral (reducing on one run and branch) 四通cross (一个直通口及两个分支口为异径) both outlet ) 异径管reducer reduc ing cross (reduc ing on one run and 螺纹支管台 threadolet 等径四通 straight cross 异径四通 reduc ing cross 异径四通 (一个分支口为异径) reduc ing cross (reduc ing on one outlet) 异径四通 outlet ) 异径四通 (一个直通口及分支口为异径) reduc ing cross (reduc ing on one run and (两个分支口为异径) reduc ing cross (reduc ing on both outlet) 同心异径管 concen tric reducer 偏心异径管 ecce ntric reducer 锻制异径管 reduc ing swage 焊接支管台 weldolet 带支座弯头 base elbow k 半径弯头 long radius elbow 短半径弯头 short radius elbow 长半径180 短半径180 ° 弯头 long radius return ° 弯头 short radius return 带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 双支管弯头(形) double branch elbow 三通tee 异径三通 reducing tee 等 径三通straight tee 带侧向口的三通(右向或左向) side outlet tee (right hand or 1eft hand) 异径三通(分支口为异径) reduc ing tee (reduc ing on outlet) 异径三通(一个直通口为异径) reduc ing tee (reduc ing on one run) Y 型三通(俗称裤衩) true “ Y” 异径四通
对照表 20系列泵配件名称中英文对照
20系列泵马达中英文名称对照表 序号英文名称中文名称1servo valve assembly控制阀总成 2charge pump cw 补油泵charge pump ccw 3servo cylinder伺服油缸 4servo piston伺服活塞 5front cover前端盖 6pump housing泵壳体 7end cap后端盖 8swash plate斜盘架 9check valve单向阀 10cylinder barrel housing缸体 11piston assembly柱塞滑靴 12bearing plate衬板(支承盘) 13retainer guide球铰 14slipper retainer回程盘 15spring retainer缸体弹簧上片16spring seat缸体弹簧下片17spring guide缸体弹簧衬套18bearing plate pilot衬板定位环19pin缸体衬板定位销20cylinder barrel spring缸体中心弹簧21retainer spring球铰弹簧 22retaining ring中心弹簧卡簧23thrust plate止推盘 24valve plate CW 配油盘valve plate CCW 配油盘 25trunnion耳轴端盖 26seal retainer组合密封铝盘 27rotating seal组合密封铜环 28stationary seal组合密封钢环 29drive shaft主轴 30servo link伺服油缸连杆 31sleeve retainer伺服油缸定位半环片
32spring guide伺服油缸弹簧压套 33shim轴承调整垫片 34washer伺服油缸弹簧压套螺栓垫片35orifice控制阀节流片 36spacer控制手柄衬环 37control handle控制手柄 38loop吊装勾片 39cap塑料盖(AB油口) 40no型号标牌 41control valve gasket控制阀密封垫片 42charge pump gasket补油泵密封垫片 43shim pack耳轴调整垫片 44end cap gasket后端盖密封垫片 45front cover gasket前端盖密封垫片 46no 47seal spring组合密封弹簧 48servo spring伺服油缸弹簧 49nut控制阀螺栓 50plastic plug塑料盖(回油口) 51plug堵头 52expander 05堵塞 53expander 09堵塞 54hex head screw控制阀六角螺栓 55hex head screw补油泵螺栓 56no 57hex head screw前端盖螺栓(短) 58end cap screw后端盖螺栓(短) 59end cap screw后端盖螺栓(长) 60screw伺服弹簧紧固螺栓 61hex head screw耳轴六角螺栓 62pin控制阀和斜盘连杆销 63pin活塞和斜盘连杆销 64drive screw组合密封静环定位销 65pin配油盘定位销 66pin前端盖定位销 67retaining ring前轴端卡簧
管件中英文对照表1
1.2 管件 Fitting 弯头 elbow 异径弯头 reducing elbow 带支座弯头 base elbow k半径弯头 long radius elbow 短半径弯头 short radius elbow 长半径180°弯头 long radius return 短半径180°弯头 short radius return 带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 双支管弯头(形) double branch elbow 三通 tee 异径三通 reducing tee 等径三通 straight tee 带侧向口的三通(右向或左向) side outlet tee (right hand or 1eft hand) 异径三通(分支口为异径) reducing tee (reducing on outlet) 异径三通(一个直通口为异径)reducing tee (reducing on one run) 带支座三通 base tee 异径三通(一个直通口及分支口为异径) reducing tee (reducing on one run and outlet) 异径三通(两个直通口为异径,双头式) reducing tee (reducing on both runs, bull head) 45°斜三通 45° lateral 45°斜三通(支管为异径) 45° lateral (reducing on branch) 45°斜三通(一个直通口为异径) 45° lateral (reducing on one run) 45°斜三通(一个直通口及支管为异径) 45° lateral (reducing on one run and branch) Y型三通(俗称裤衩)true “Y” 四通 cross 等径四通 straight cross 异径四通 reducing cross 异径四通(一个分支口为异径)reducing cross (reducing on one outlet) 异径四通(一个直通口及分支口为异径) reducing cross (reducing on one run and outlet) 异径四通(两个分支口为异径) reducing cross (reducing on both outlet) 异径四通(一个直通口及两个分支口为异径) reducing cross (reducing on one run and both outlet) 异径管 reducer 同心异径管 concentric reducer 偏心异径管 eccentric reducer 锻制异径管 reducing swage 螺纹支管台 threadolet 焊接支管台 weldolet 承插支管台 sockolet
各种阀门、管件及部件名称中英文对照表
各种阀门、管件及部件名称中英文对照表
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各种阀门、管件及部件名称中英文对照表 1螺纹球阀CQThread Ball Valves2形三通式pattern threeway 3形三通式pattern three way 4安全阀Safety valve 5暗杆闸阀 Insidescrew nonrising stemtypegate valve 6百叶窗闸板shutter 7百叶窗式挡板louver damper 8摆阀式活塞泵swinggate piston pump 9保温式Steam jacket type 10报警阀alarm valve 11报警阀信号阀脉冲阀sentinel valve 12背压调节阀back pressureregulating valve 13背压率Rate of back pressure 14本体阀杆密封body stem seal 15波纹管阀Bellows valves 16波纹管密封阀bellowsealedvalve 17波纹管密封式Bellows sealtype 18波纹管平衡式安全阀 Bellows sealbalance safetyvalve 19波纹管式减压阀Bellows reducing valve 20波纹管式减压阀Bellows wealreducing valve 21薄膜thinfilm 22薄膜隔膜diaphragm 23薄膜式减压阀Diaphragm reducingvalve24薄型闸阀ThinGateValves 25不封闭式Unseal type 26槽车球阀Tank Lorry Ball Valves 27颤振Flutter 28常闭式Normally closed type 29常开式Normally open type 30超低温阀门Cryogenic valve 31超高压阀门Super high pressure valve 32超过压力Overpressure of a safety valve 33衬胶隔膜阀rubberlined diaphragm 34衬胶截止阀rubber linedglobe valve 35垂直板式蝶阀Vertical disc typebutterfly valve 36磁耦合截止阀 MagneticCo-operate Globe V alves 37带补充载荷的安全阀 Supplementary loaded safetyvalve
管件中英文对照表
弯头 elbow 异径弯头reducing elbow 带支座弯头base elbow 长半径弯头(标准 1.5 倍弯曲半径 ---1.5D ) long radius elbow 三通 tee 异径三通 reducing tee 等径三通 straight tee 带侧向口的三通(右向或左向) side outlet tee (right hand or 1eft hand)异径三通(分支口为异径)reducing tee (reducing on outlet)异径三通(一个直通口为异径)reducing tee (reducing on one run)带支座三通base tee 异径三通(一个直通口及分支口为异径)reducing tee (reducing on one run and outlet)异径三通(两个直通口为异径,双头式)reducing tee (reducing on both runs, bull head) 45 °斜三通 45 °lateral 45 °斜三通(支管为异径)45 °lateral (reducing on branch)45 °斜三通(一个直通口为异径)45 °lateral (reducing on one run) 45 °斜三通(一个直通口及支管为异径)45 °lateral (reducing on one run and branch) Y 型三通(俗称裤衩) true “ Y” 四通 cross 等径四通straight cross 异径四通reducing cross 异径四通(一个分支口为异径) reducing cross (reducing on one outlet) 异径四通(一个直通口及分支口为异径) reducing cross (reducing on one run and outlet) 异径四通(两个分支口为异径) reducing cross (reducing on both outlet) 异径四通(一个直通口及两个分支口为异径) reducing cross (reducing on one run and both
管材、管件、阀门、接头、管道特件、紧固件、密封等中英文对照
管材、管件、阀门、接头、管道特件、紧固件、垫片、密封、工程材料等中英文对照 化工管道设计技术英语词汇(1-2-3) 1 管道组成件 Piping component 1.1 管子 Pipe 管子(按照配管标准规格制造的) pipe 管子(不按配管标准规格制造的其他用管) tube 钢管 steel pipe 铸铁管 cast iron pipe 衬里管 lined pipe 复合管 clad pipe 碳钢管 carbon steel pipe 合金钢管 alloy steel pipe 不锈钢 stainless steel pipe 奥氏体不锈钢管 austenitic stainless steel pipe 铁合金钢管 ferritic alloy steel pipe 轧制钢管 wrought-steel pipe 锻铁管 wrought-iron pipe 无缝钢管 seamless (SMLS) steel pipe 焊接钢管 welded steel pipe 电阻焊钢管 electric-resistance welded steel pipe 电熔(弧)焊钢板卷管 electric-fusion (arc)-welded steel-plate pipe 螺旋焊接钢管 spiral welded steel pipe 镀锌钢管 galvanized steel pipe 热轧无缝钢管 hot-rolling seamless pipe 冷拔无缝钢管 cold-drawing seamless pipe 水煤气钢管 water-gas steel pipe 塑料管 plastic pipe 玻璃管 glass tube 橡胶管 rubber tube 直管 run pipe; straight pipe 1.2 管件 Fitting 弯头 elbow 异径弯头 reducing elbow 带支座弯头 base elbow k半径弯头 long radius elbow 短半径弯头 short radius elbow 长半径180°弯头 long radius return 短半径180°弯头 short radius return 带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 双支管弯头(形) double branch elbow
工艺管道常用中英文对照
这个是用来表达管件连接形式的;给楼主一份中英文对照还有缩写吧缩写中文名称英文名称 P 管子Pipe EL 弯头Elbow ELL 长半径弯头Long radius elbow ELS 短半径弯头Short radius elbow MEL 斜接弯头(虾米腰弯头)Mitre elbow REL 异径弯头Reducing elbow T 三通Tee LT 斜三通Lateral tee RT 异径三通Reducing tee R 异径管接头(大小头)Reducer CR 同心异径管接头(同心大小头)Concentric reducer ER 偏心异径管接头(偏心大小头)Eccentric reducer CPL 管箍Coupling FCPL 双头管箍Full coupling HCPL 单头管箍Half coupling RCPL 异径管箍Reducing coupling BU 内外螺纹接头Bushing UN 活接头Union HC 软管接头Hose coupler SE 翻边短节Stub end
NIP 短节Pipe nipple or straight nipple SNIP 异径短节Swaged nipple CP 管帽(封头)Cap PL 管堵(丝堵)Plug BLK 盲板Blank SB 8字盲板Spectacle blind (blank)RP 补强板Reinforcing pad 法兰 缩写中文名称英文名称 PLG 法兰Flange WNF 对焊法兰Welding neck flange SOF 平焊法兰Slip-on flange SWF 承插焊法兰Socket-welding flange T 螺纹法兰Threaded flange LJ 松套法兰Lapped joint flange REDF 异径法兰Reducing flange BF 法兰盖(日法兰)Blind flange FSF 法兰密封面Flange scaling face FF 全平面Flat face RF 凸台面Raised face MFF 凹凸面Male and female face LF 凹面Female face
管件中英文对照
管件中英文对照
管件中英文对照 等径直通equal coupling 异径直通reducing coupling 内牙直通female coupling 夕卜牙直通straight tube with outside 90 等径弯头90 equal elbow 45 等径弯头45 equal elbow 夕卜牙弯头male elbow 内牙弯头female elbow 等径三通equal tee 异径三通reducing tee 内牙三通female tee 夕卜牙三通male tee 管帽cap sch代表压力lr长半径或1倍半大小SIZE 数量QTY 碳钢弯头Carbon Steel Elbow 不锈钢弯头Stainless Steel Elbow 高压弯头High-Pressure Elbow 同心异径管Concentric Reducers 偏心异径管Eccentric Reducers 高压异径管High-pressure Reducers 不锈钢等径三通Stai nless Straight Tee 碳钢等径三通Carbo n Straight Tee 不锈钢等径四通Sta in less Straight Cross 高压三通High-pressure Tee 锻制三通Forged Tee 异径接头Template 管帽Caps 法兰flange 长径和短径弯头long and short radius elbows 同心和偏心异径接头concen tric and ecce ntric reducers 等径和异径三通straight and reduc ing outlet tees 大小头CONCENTRIC REDUCER Tee Equal相等的三通等径三通Straight Tee 异径三通Reduc ing Tee 等径四通Straight Cross 90。短半径弯头90 °SS Elbow (SR) 90。长半径弯头 90 °SS Elbow (LR) 高压厚壁弯头Thick ness Elbow U 型管Return Bend
管件中英文对照
管件中英文对照(2007-07-15 11:42:00) 等径直通equal coupling 异径直通reducing coupling 内牙直通 female coupling 外牙直通 straight tube with outside 90等径弯头 90 equal elbow 45等径弯头 45 equal elbow 外牙弯头 male elbow 内牙弯头 female elbow 等径三通 equal tee 异径三通 reducing tee 内牙三通female tee 外牙三通 male tee 管帽cap sch代表压力 lr长半径或1倍半 大小 SIZE 数量 QTY 碳钢弯头 Carbon Steel Elbow 不锈钢弯头 Stainless Steel Elbow 高压弯头 High-Pressure Elbow 同心异径管 Concentric Reducers 偏心异径管 Eccentric Reducers 高压异径管 High-pressure Reducers 不锈钢等径三通 Stainless Straight Tee 碳钢等径三通 Carbon Straight Tee 不锈钢等径四通 Stainless Straight Cross 高压三通 High-pressure Tee 锻制三通 Forged Tee
异径接头 Template 管帽 Caps 法兰flange 长径和短径弯头 long and short radius elbows 同心和偏心异径接头 concentric and eccentric reducers 等径和异径三通 straight and reducing outlet tees 大小头 CONCENTRIC REDUCER Tee Equal 相等的三通 等径三通Straight Tee 异径三通Reducing Tee 等径四通Straight Cross 90°短半径弯头90°SS Elbow (SR) 90°长半径弯头90°SS Elbow (LR) 高压厚壁弯头Thickness Elbow U型管Return Bend 盲法兰Blank Flange 弯管Bends 翻边stub ends 异径接头reducers 公称通径 nominal diameter 外径(mm) outside diameter 中心距至端面的距离 center to end 理论重量(kg/pcs) approx weight description 类种 Standard标准 Design类型 Material材质 双丝头 Nipple 短节 SWAGE NIPPLE
管件中英文对照表
管件中英文对照表 1、法兰Flange(FLG)整体管法兰integral pipe flange 钢管法兰steel pipe flange 螺纹法兰threaded flange 滑套法兰(包括平焊法兰)slip-on flange(SO);slip-on welding flange 承插焊法兰socket welding flange 松套法兰lap joint flange(LJF) 对焊法兰welding neckflange(WNF) 法兰盖blind flange,blind 孔板法兰orifice flange 异径法兰reducing flange 盘座式法兰pad type flange 松套带颈法兰loose hubbed flange 焊接板式法兰welding plate flange 对焊环welding neck collar(与stub end相似) 平焊环welding-on collar 突缘短节stub end,lap 翻边端lapped pipe end 松套板式法兰loose plate flange 压力级pressure rating,pressure rating class 压力—温度等级pressure-temperature rating 法兰密封面,法兰面flange facing 突面raised face(RF) 凸面male face(MF) 凹面female face(FMF) 榫面tongue face 槽面groove face 环连接面ring joint face 全平面;满平面flat face;full face(FF) 光滑突面smooth raised face(SRF) 法兰面加工facing finish 粗糙度roughness 光滑的smooth 齿形serrated 均方根root mean square(RMS) 算术平均粗糙高度arithmetical average roughness height(AARH) 配对法兰companion-flange 螺栓圆bolt circle(B.C.)
英文管材管件中英词汇对照表
英文管材管件中英词汇对照表 管子(按照配管标准规格制造的) pipe 钢管(不按配管标准规格制造的其他用管) tube 钢管steel pipe 铸铁管cast iron pipe 管子Pipe 管子(按照配管标准规格制造的) pipe 管子(不按配管标准规格制造的其他用管) tube 钢管steel pipe 铸铁管cast iron pipe 衬里管lined pipe 复合管clad pipe 碳钢管carbon steel pipe 合金钢管alloy steel pipe 不锈钢stainless steel pipe 奥氏体不锈钢管austenitic stainless steel pipe 铁合金钢管ferritic alloy steel pipe 轧制钢管wrought-steel pipe 锻铁管wrought-iron pipe 无缝钢管seamless (SMLS) steel pipe 焊接钢管welded steel pipe 电阻焊钢管electric-resistance welded steel pipe 电熔(弧)焊钢板卷管electric-fusion (arc)-welded steel-plate pipe 螺旋焊接钢管spiral welded steel pipe 镀锌钢管galvanized steel pipe 热轧无缝钢管hot-rolling seamless pipe 冷拔无缝钢管cold-drawing seamless pipe 水煤气钢管water-gas steel pipe 塑料管plastic pipe 玻璃管glass tube 橡胶管rubber tube 直管run pipe; straight pipe 1.2 管件Fitting 弯头elbow 异径弯头reducing elbow 带支座弯头base elbow k 半径弯头long radius elbow 短半径弯头short radius elbow 长半径180°弯头long radius return 短半径180°弯头short radius return 带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 双支管弯头(形)double branch elbow
管件中英文对照表
管件中英文对照表
1.2 管件Fitting 弯头elbow 异径弯头reducing elbow 带支座弯头base elbow k半径弯头long radius elbow 短半径弯头short radius elbow 长半径180°弯头long radius return 短半径180°弯头short radius return 带侧向口的弯头(右向或左向)side outlet elbow (right hand or left hand) 双支管弯头(形)double branch elbow 三通tee 异径三通reducing tee 等径三通straight tee 带侧向口的三通(右向或左向)side outlet tee (right hand or 1eft hand) 异径三通(分支口为异径)reducing tee (reducing on outlet) 异径三通(一个直通口为异径)reducing tee (reducing on one run) 带支座三通base tee 异径三通(一个直通口及分支口为异径)reducing tee (reducing on one run and outlet) 异径三通(两个直通口为异径,双头式)reducing tee (reducing on both runs, bull head) 45°斜三通45° lateral 45°斜三通(支管为异径)45° lateral (reducing on branch) 45°斜三通(一个直通口为异径) 45° lateral (reducing on one run) 45°斜三通(一个直通口及支管为异径) 45° lateral (reducing on one run and branch) Y型三通(俗称裤衩)true “Y” 四通cross 等径四通straight cross 异径四通reducing cross 异径四通(一个分支口为异径)reducing cross (reducing on one outlet) 异径四通(一个直通口及分支口为异径)reducing cross (reducing on one run and outlet) 异径四通(两个分支口为异径)reducing cross (reducing on both outlet) 异径四通(一个直通口及两个分支口为异径)reducing cross (reducing on one run and both outlet) 异径管reducer 同心异径管concentric reducer 偏心异径管eccentric reducer 锻制异径管reducing swage 螺纹支管台threadolet 焊接支管台weldolet
管件中英文对照
管件中英文对照等径直通equal coupling 异径直通reducing coupling 牙直通 female coupling 外牙直通 straight tube with outside 90等径弯头 90 equal elbow 45等径弯头 45 equal elbow 外牙弯头 male elbow 牙弯头 female elbow 等径三通 equal tee 异径三通 reducing tee 牙三通female tee 外牙三通 male tee 管帽cap sch代表压力 lr长半径或1倍半 大小 SIZE 数量 QTY 碳钢弯头 Carbon Steel Elbow 不锈钢弯头 Stainless Steel Elbow 高压弯头 High-Pressure Elbow 同心异径管 Concentric Reducers 偏心异径管 Eccentric Reducers 高压异径管 High-pressure Reducers 不锈钢等径三通 Stainless Straight Tee 碳钢等径三通 Carbon Straight Tee 不锈钢等径四通 Stainless Straight Cross 高压三通 High-pressure Tee 锻制三通 Forged Tee 异径接头 Template 管帽 Caps 法兰flange 长径和短径弯头 long and short radius elbows 同心和偏心异径接头 concentric and eccentric reducers 等径和异径三通 straight and reducing outlet tees
管件中英文对照表
1 管道组成件 Piping component 1.1 管子 Pipe 管子(按照配管标准规格制造的) pipe 管子(不按配管标准规格制造的其他用管) tube 钢管 steel pipe 铸铁管 cast iron pipe 衬里管 lined pipe 复合管 clad pipe 碳钢管 carbon steel pipe 合金钢管 alloy steel pipe 不锈钢 stainless steel pipe 奥氏体不锈钢管 austenitic stainless steel pipe 铁合金钢管 ferritic alloy steel pipe 轧制钢管 wrought-steel pipe 锻铁管 wrought-iron pipe 无缝钢管 seamless (SMLS) steel pipe 焊接钢管 welded steel pipe 电阻焊钢管 electric-resistance welded steel pipe 电熔(弧)焊钢板卷管 electric-fusion (arc)-welded steel-plate pipe 螺旋焊接钢管 spiral welded steel pipe 镀锌钢管 galvanized steel pipe 热轧无缝钢管 hot-rolling seamless pipe 冷拔无缝钢管 cold-drawing seamless pipe 水煤气钢管 water-gas steel pipe 塑料管 plastic pipe 玻璃管 glass tube 橡胶管 rubber tube 直管 run pipe; straight pipe 1.2 管件 Fitting 弯头 elbow 异径弯头 reducing elbow 带支座弯头 base elbow k半径弯头 long radius elbow 短半径弯头 short radius elbow 长半径180°弯头 long radius return 短半径180°弯头 short radius return 带侧向口的弯头(右向或左向) side outlet elbow (right hand or left hand) 双支管弯头(形) double branch elbow 三通 tee 异径三通 reducing tee