液压止回阀说明书
液控缓闭止回蝶阀使用说明书
目录一、名称、用途及特点二、主要性能规范三、工作原理和结构说明四、电控原理五、试车及运行六、润滑七、液压原理图八、电路接线图一、名称、用途及特点本产品为液压控制缓闭止回蝶阀,适用介质为水的管道上泵的出口端作调节,闭路和止回阀用。
它有以下特点:1、能按程序启闭,在正常供电和突然断电情况下能自动按预定的时间和角度分快、慢二阶段关闭,调节范围大,适应性强;2、即可消除破坏性水锤,又能控制水泵的反转速度和反转时间,有效地降低了管网中的压力波动,保障水泵及管网系统的安全可靠运行;3、本阀可取代二阀(如闸阀和止回阀)的功能,体积小,重量轻,流阻小,耗能低;4、可实现泵阀联动控制,操作简便。
三、工作原理和结构说明(一)本阀由机械、液压、电气三部分组成。
主要工作原理是:1、阀门开启:启动电机、带动油泵运转、液压油经滤网、油泵、流量控制阀、高压胶管进入摆动油缸,推动活塞杆,带动与之相连的杠杆举起重锤,此时阀轴及蝶板旋转实现阀门开启。
2、阀门关闭:切断电磁阀电源(或因事故突然断电),则电磁锁紧阀断电,锁定缸缩回,举升缸里的液压油经油缸尾部的快慢关节流阀、高压胶管、电磁阀流入油箱,在重锤的势能和动力水矩的作用下阀轴及蝶板旋转、关闭蝶阀。
四、电控原理缓冲止回阀电器控制原理说明1、电控电源采用三相50HZ、380伏的电源及堆线供电,电磁阀所需工作电压直流24伏电源,由开关电源供给,控制电压为220伏,电机电压为380伏。
2、控制系统分两部分:(1)现场(就地)操作部分;(2)集控(联动)操作部分。
3、控制系统工作原理如下:本系统采用日本三菱PLC控制:(1)就地控制:合上空气开关SQ指示灯表示电源接通,PLC绿灯设亮,将控制箱上的现场控转换开关(SA)打到现场位置,接下油泵启动按钮,PLC输入端X0灯亮,输出端Y10,Y0灯亮有输出,中间继电器KA1灯亮,表示KA1工作,同时接触器KM工作,油泵电机得电运行,油泵运行灯亮。
止回阀操作说明书
止回阀操作说明书止回阀也称作逆止阀或单向阀,用来防止管路中的介质倒流。
它属于自动阀门,其启闭动作是依靠管路内介质本身的能量来驱动的,无需外力。
一、技术参数压力等级1500Lb规格6"工作温度-29℃~425℃适用介质水、油品三、结构和主要材料1.结构止回阀主要由阀体、阀盖、阀瓣、摇臂、阀座等组成,见旋启式止回阀结构示意图。
止回阀分成升降式和旋启式两大类,API 6D中仅包括旋启式止回阀,其关闭件是阀瓣,它有一个、两上或多个,分别称作单瓣旋启式止回阀、双瓣旋启式止回阀和多瓣旋启式止回阀。
阀瓣呈圆盘(或半圆盘)状,它通过摇臂可绕位于阀内通道上方的销轴旋转而启闭。
按其连接方式,止回阀分成对夹式和法兰连接两种,对夹式又有单瓣对夹式和双瓣对夹式之分。
本阀门属单瓣旋启式止回阀,法兰连接。
2.主要材料四、特点1.旋启式止回阀流体阻力较小2.阀内通道介质流动方向受到限制3.低压状态下,密封性能受到影响五、选用与安装1选用主要考虑使用工况和操作要求:止回阀的品种和规格很多,应按使用工况(如工作介质,操作压力,操作温度,管路通径等)以及安装操作要求(如连接方式)来选用适当的止回阀。
1.1 材料选用:A105、WCB主要适用于非腐蚀性介质。
如油、气、水等。
304、CF8主要适用于硝酸类介质。
316、CF8M主要适用于醋酸类介质。
1.2 根据温度选用ASME B16.34规定了ASTM各种材料的压力温度等级,该标准详细地规定了各种压力等级,不同壳体材料在各种操作温度下的最大工作压力(表压),它是设计和选用阀门的主要基准之一。
因而,选用止回阀时必须由操作压力和操作温度按压力温度等级(ASME B16.34)来确定所选用止回阀的材料(指壳体)和压力等级(指公称压力)。
如果操作温度、压力超负荷运行,可能导致阀门损坏。
选用阀门时应充分考虑各种工况条件,避免阀门超负荷运行。
1.3 操作温度过高或过低时,为防止烫伤或冻伤操作人员和温度损失,应在壳体上加保温层。
液压系统中止回阀用法
液压系统中止回阀用法
1. 嘿,你知道吗,液压系统里的止回阀就像是交通路口的单向通道!比如在一个液压油缸里,如果没有止回阀,油液不就可能倒流啦?那可就乱套了!止回阀能确保油液只朝一个方向流动,厉害吧!
2. 哎呀呀,止回阀的用法可太重要啦!就好比是河流上的水坝,能拦住水不让它倒流。
想想看,要是没有止回阀,液压系统会变成啥样?比如在起重机工作的时候,止回阀要是不在,那不是危险了嘛!
3. 哇塞,液压系统中止回阀的作用可不容小觑啊!这就好像是家里的门锁,把不该进来的给挡住。
像那种需要精确控制的液压设备,止回阀绝对是关键呀!要是没有它,后果简直不堪设想!
4. 你瞧,止回阀在液压系统里那可是扮演着超级重要的角色呀!就跟个忠诚的卫士一样。
比如说在注塑机里,止回阀守护着液压油的流动方向,没有它的话,那生产还怎么正常进行呀!
5. 嘿朋友,止回阀的用法得好好了解一下呀!它就如同赛道上的隔离栏,让一切都有序进行。
假设在一个液压传动的自动生产线中,没了止回阀,那不是全乱套了嘛!
6. 哇哦,止回阀真的太牛啦!简直就是液压系统里的定海神针呀!举个例子,要是在汽车的刹车液压系统里没有止回阀,那刹车还能可靠吗?肯定不行呀!
结论:液压系统中的止回阀用法至关重要,能确保系统稳定可靠地运行,一定要重视它呀!。
LKC-2止回阀说明书
技术数据温度最高温度:............140°C(EPDM)最低温度:............10°C压力最大产品压力:..........1000kPa(10bar)机械安装在垂直管道中(如图3所示)时,打开阀门所需的压差约为6kPa(0.06bar)物理数据材料过流产品钢制部件:....... 1.4301(304)/1.4404(316L)外表面光洁度...........亚光型(喷砂处理)内表面光洁度...........亮光型(抛光处理),Ra<0.8µm过流产品密封件:.........EPDM橡胶选件过流产品密封环材质为丁腈橡胶(NBR)或氟橡胶(FPM)。
压降/流量图T D 406-013DN ISO 2532/403850512563.565101.610076.180P (kPa)Q (m³/h)123456789102030 40506080100200 300102030 40506080100200300 7090图1.注意!图表的适用说明:介质:水(20°C).测量:根据VDI 2173。
图2=流向。
显示最佳嵌入状况。
也可使用其他位置(例如,水平)。
阀座的四个导向支脚可保证良好的对齐性。
90°旋转。
尺寸(mm)表1。
尺寸。
ISODIN 规格25385163.576.1101.6253240506580100A 62.575.087.595.011515562.575.075.087.595.0115155OD 25.438.451.463.976.410230.036.042.054.070.085.0104ID 22.535.548.560.572.097.626.032.038.050.066.081.0100t 1.45 1.45 1.45 1.7 2.2 2.22222222H72.085.59912713816472.085.585.599127138164重量(kg)0.50.71.01.72.44.30.50.70.71.01.72.44.3ESE00294zh 1201此处包含的信息在发布时是正确的,但是可能有所变化,恕不提前通知。
H44H美标说明书
旋启式止回阀使用说明书高能阀门集团有限公司产品简介H64系列产品是我公司最新研制开发的止回阀,主要适用于石油、化工、食品、医药、轻纺、造纸、给排水、冶炼及能源系统作为单向阀使用,用来防止介质的逆流和破坏性水源。
一、特点1.体积小,重量轻,结构紧凑,维修方便。
2.缓闭装置设计新颖,结构紧凑合理,性能稳定可靠且位于管线之处,避免了污染介质。
3.运行平稳,无震动,无噪音。
4.启闭特性好,阀门开启压力≤0.03MPa。
开启迅速,关闭阀门采用可调式,快慢两阶段关闭方式,缓闭时间调节范围大,可适用不同工况要求。
二、产品符合标准1.设计制造采用BS 1868标准;2.对焊端尺寸符合ANSI B16..25的规定。
3.结构长度尺寸符合ANSI B16.10的规定。
三、工作原理:本止回阀主要是由阀体、阀板、转轴、摇臂、缓冲液压缸等组成。
本阀靠进口介质压力、推动阀板开启使介质通过,阀板通过转轴带动摇臂将缓冲液压缸中活塞杆拉到开启位置。
当介质停止流动时(如泵突然停止运行)由于阀板自重及介质倒流的作用,使阀板自动关闭,由于缓冲液压缸的作用,阀板关闭可分两阶段。
从全开位置(90°)到运行了75°为快关段,阻尼装置作用很小,75°以后阻尼作用加大,为慢关段,且慢关的时间可通过调节缓冲液压缸的溢流阀进行调整,以消除破坏性水锤(将水锤压力控制在工作压力的1.2~2.5倍之间,并控制介质倒流时,水泵倒转速不超过水泵额定转速的1.3倍).四、主要性能规范公称压力强度试验MPa密封试验MPa适用温度(℃)适用介质150LB 3.0 2.2≤425℃水、蒸气、煤气、油品、热空气、腐蚀性介质等300LB 7.5 5.5600LB 15.0 11.0五、结构简图六、主要零件材料零件名称材料阀体A216 WCB阀瓣A216 WCB+13Cr阀座A105+13Cr螺母A193 B7摇杆A216 WCB阀盖A216 WCB螺柱A194 2H垫片304+柔性石墨缠绕垫销A182 F6a吊环A181七、保管、安装、使用及维护1、阀门应存放在比较干燥的室内。
SDV15和XDV20液体液压阀门说明书
Instructions-Parts ListSDV15 and XDV20 Dispense Valve312789F- For non-metered dispensing of petroleum and synthetic-based oil - Models: Pages 2 and 31500 psi (10 MPa, 103.4 bar) Maximum Working PressureTI1466aSDV15 Model ShownENModelsModelsSDV15 Dispense Valve ModelsAll models include: 1/2 npt(f) swivel with locking-open triggerPart No.Extension Nozzles Fluid Type247712Rigid Automatic non-drip, quick close Oil247713Flexible Automatic non-drip, quick close Oil247714Gear Lube Automatic, non-drip, quick close Gear Lube247715Rigid Automatic, non-drip, quick close Anti-freeze247716Flexible Automatic, non-drip, quick close Anti-freeze247717NONE NONE AllAll models include: 1/2 - 14 BSPP swivel with locking-open triggerPart No.Extension Nozzles Fluid Type24H384Rigid Automatic non-drip, quick close Oil24H385Flexible Automatic non-drip, quick close Oil24H386Gear Lube Automatic, non-drip, quick close Gear Lube24H387Rigid Automatic, non-drip, quick close Anti-freeze24H388Flexible Automatic, non-drip, quick close Anti-freeze24H389NONE NONE AllAll models include: 1/2 - 14 BSPT swivel with locking-open triggerPart No.Extension Nozzles Fluid Type24H390Rigid Automatic non-drip, quick close Oil24H391Flexible Automatic non-drip, quick close Oil24H392Gear Lube Automatic, non-drip, quick close Gear Lube24H393Rigid Automatic, non-drip, quick close Anti-freeze24H394Flexible Automatic, non-drip, quick close Anti-freeze24H395NONE NONE All2312789FModelsXDV20 Non-metered Valve ModelsNPT Models - All models include locking-open and closed triggerPart No.Swivel Extension Nozzles Fluid Type 2477181/2” npt (f)Rigid High flow, non-drip, quick close Oil / Anti-freeze 2477211/2” npt (f)Flexible High flow, non-drip, quick-close Oil / Anti-freeze 2477223/4“ npt (f)Rigid High flow, non-drip, quck close Oil / Anti-freeze 2477233/4” npt (f)Flexible High flow, non-drip, quick close Oil / Anti-freeze 2477241/2” npt (f)NONE NONE Oil / Anti-freeze 2477253/4” npt (f)NONE NONE Oil / Anti-freezeBSPP Models - All models include locking-open and closed triggerPart No.Swivel Extension Nozzles Fluid Type 24H4071/2” - 14 BSPP Rigid High flow, non-drip, quick close Oil / Anti-freeze 24H4081/2” - 14 BSPP Flexible High flow, non-drip, quick-close Oil / Anti-freeze 24H4093/4“- 14 BSPP Rigid High flow, non-drip, quck close Oil / Anti-freeze 24H4103/4” - 14 BSPP Flexible High flow, non-drip, quick close Oil / Anti-freeze 24H4111/2” - 14 BSPP NONE NONE Oil / Anti-freeze 24H4123/4” - 14 BSPP NONE NONE Oil / Anti-freezeBSPT Models - All models include locking-open and closed triggerPart No.Swivel Extension Nozzles Fluid Type 24H4131/2” - 14 BSPT Rigid High flow, non-drip, quick close Oil / Anti-freeze 24H4141/2” - 14 BSPT Flexible High flow, non-drip, quick-close Oil / Anti-freeze 24H4153/4“ - 14 BSPT Rigid High flow, non-drip, quck close Oil / Anti-freeze 24H4163/4” - 14 BSPT Flexible High flow, non-drip, quick close Oil / Anti-freeze 24H4171/2”- 14 BSPT NONE NONE Oil / Anti-freeze 24H4183/4” - 14 BSPT NONE NONE Oil / Anti-freeze312789F3WarningsWarningsThe following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.4312789FInstallation312789F 5InstallationGroundingThe equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.Pump: follow manufacturer’s recommendations.Air and fluid hoses: use only grounded hoses. Air compressor: follow manufacturer’s recommenda-tions.Fluid supply container: follow local code.To maintain grounding continuity when flushing or reliev-ing pressure , always hold metal part of valve firmly to side of grounded metal pail, then trigger valve.Pressure Relief Procedure1.Turn off power supply to pump.2.Trigger valve into waste container to relieve pres-sure.3.Open any bleeder-type air valves and fluid drainvalves in the system.4.Leave drain valve open until you are ready to pres-surize the system.If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after following the steps above, VERY SLOWL Y loosen tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction.Pre-Installation Procedure1.Relieve pressure as described in Pressure ReliefProcedure.2.Close fluid shut-off valve (A, F IG . 1).3.Ground hose, reel and console (See Grounding ).NOTICEDo not use PTFE tape on pipe joints; it may cause aloss of ground across the pipe joint.The equipment stays pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid, accidental spray from the dis-pense valve or splashing fluid, follow this Pressure Relief procedure whenever you:•Are instructed to relieve pressure•Check, clean or service any system component •Install or clean fluid nozzlesInstallation6312789FTypical InstallationF IG . 1 shows a typical installation. The installation is only a guide. The components shown are typical; however, it is not a complete system design. Contact your Graco distributor for assistance in designing a system to suit your particular needs.Dispense valves can also be installed on a console.Installation Procedure1.Relieve pressure , page 5.Steps 2 - 6 are the Flushing Procedure.2.Close fluid shut-off valve (A) at each dispense posi-tion.3.Make sure main fluid outlet valve at pump is closed,the air pressure to the pump motor is adjusted, and the air valve is open. Slowly open main fluid valve.4.Place hose end (with no dispense valve connected)into a container of waste oil. Secure hose in con-tainer so it will not come out during flushing. If you have multiple dispense positions, flush the dispense position farthest from pump first and work your way toward the pump.5.Slowly open fluid shut off valve (A) at dispense posi-tion. Flush out a sufficient amount of oil to ensure the entire system is clean. Close valve.6.Repeat Step 5 for all dispense positions.•Do not use this dispense valve on non-Graco con-soles. Such use could result in trigger becoming inadvertently pressed while valve is stowed.•To prevent line contamination, which can cause equipment damage or malfunction, flush the lines before your install the equipment in the system.F IGIf this is a new installation, or if the lines are contami-nated, flush the lines before you install dispensing valve.Key DescriptionA Fluid shutoff valveBHoseC Hose reel fluid inlet hoseD Hose reel EDispense valveA Thermal Relief Kit (not shown) is required.The Kit required will vary by pump selected. See Parts, page 16 for a list of available kits.Operation312789F 7Existing Installation1.Relieve pressure , page 5.2.Loosen and disconnect hose from old dispensevalve (the one you are replacing).Existing or New InstallationFor Steps 3 - 5 see F IG . 2.3.Thread extension (11) into outlet of the dispensevalve handle (1). Tighten securely.4.Apply thread sealant to male threads of hose fitting.Thread hose fitting into swivel (6). Tighten firmly.5.Thread nozzle (12) or nozzle adapter onto extensionand tighten firmly.6.Open all dispense position shut-off valves. Startpump to pressurize system.OperationFor part numbers referenced in these instructions, see Parts, page 10.Dispensing Procedure1.Open (or unlock) nozzle.2.Pull trigger (15) toward the valve handle (1) to openvalve and begin dispensing.3.Lock valve open by keeping trigger (15) squeezedand depressing trigger lock button (14). Then you can release trigger.4.To release trigger lock (14), pull trigger (15) towardvalve handle (1). 5.Release trigger (15) to stop dispensing.6.Close (lock) nozzle.•Do not overtighten extension.•Thread extension in at least three full turns. Position extension for proper alignment with valve handle (1) and tighten nut (11a).F IG. 2611a11121ti11466aTo reduce the risk of a serious bodily injury, including fluid injection, never exceed the maximum working pressure of the valve you are using or of the lowest rated component in your system.The XDV20 dispense valve trigger automatically locks whenever you release the trigger and must be unlocked each time you begin a new dispense.Troubleshooting8312789FTroubleshootingRelieve pressure before you check or repair dispense valve. Be sure all other valves and controls and the pump are operating properly.*Some fluid seepage is possible in applications where thermal expansion of fluid is possible.ProblemCauseSolutionSlow or no fluid flowScreen is clogged 1.Relieve pressure.2.Clean or replace strainer (4a)and washer 4b. Order Filter Kit 256164.3.If the problem remains, contactyour Graco distributor for repair or replacement.Pump pressure is low Shutoff valve is not full openOil leaks from swivel Swivel is looseT orque the swivel (6) to 7-10 ft-lb (9-13 N.m).If the problem remains, contact your Graco distributor for repair or replacement.O-ring is worn or damagedReplace swivel (6). Torque swivel to 7-10 ft-lb (9-13 N.m).If the problem remains, contact your Graco distributor for repair or replacement.Oil drips from nozzle*Nozzle is damaged or obstructed Inspect nozzle for damage or obstructions. Replace if damaged.Valve leaksO-rings or valve seat are worn or damagedReplace seals (9) and/or valve seat (2).Service312789F 9ServiceValve Handle Repair1.Relieve pressure , page 5.2.If you are replacing the seals (9), the cam (8) or thepush rod (3), remove the swivel (6) and remove the internal pieces. You must remove the cam in order to get the push rod out of the valve end.3.Remove screws (7) and washers (10) and removetrigger (15). 4.Push cam (8) out of valve handle (1). 5.Replace seals (9) and/or cam (8).6.Replace any worn or broken parts.7.Reassembly internal parts. Refer to F IG . 3 for cor-rect installation order and orientation of parts.8.Lubricate the cam (8) and slide it into the valve han-dle (1), making sure the notch is oriented as shown in F IG . 3, with the large end of the push rod (3) rest-ing in the notch of the cam.9.Replace the screws (7) and seals (9). Torquescrews to 15 -25 in-lb (1.7 to 2.8 N•m).10.Replace swivel (6). Torque to 7-10 ft-lb (31 to 44N•m).Filter ReplacementOrder Filter Kit 256164.1.Relieve pressure, page 5.2.Unscrew hose fitting from swivel (6).3.Remove swivel (6) from valve handle (1).4.Remove strainer (4a) and washer (4b) from inside ofswivel (6).5.Replace washer (4b) and strainer (4a). Refer to F IG .4 to ensure correct orientation of filter in swivel.6.Thread hose fitting into swivel (6) and tighten.Torque swivel to 7-10 ft-lb (31- 44 N•m).The large end of the push rod (3) fits into a notch in the cam (8) which is part of the trigger assembly. It is important you know this before you remove orinstall parts.The push rod (3) must be inserted through the out-let end of the valve handle before cam (8) is installed.F IG . 36173891015ti12073a710F IG . 4ti12074a14b 4a6Parts10312789FPartsSDV15 Dispense ValvesFN Part No.DescriptionQty 115R709HANDLE, valve, standard duty 12191313SEAT , valve 13277673ROD, push14256164KIT, filter, includes 4a and 4b 14a STRAINER 104b WASHER, plain106238399SWIVEL, straight, NPT 124H382SWIVEL, straight, BSPP 124H383SWIVEL, straight, BSPT 17110637SCREW, machine, pan head 28191315CAM19113574SEAL, quad ring 210191552WASHER, flat 211*KIT, nozzle and extension, page 12112*113113924SPRING, compression 11415R526LOCK, trigger 115191320TRIGGER 116192106GUIDE, spring 118113493SPRING, compression 120†172479T AG, warning 12215K672ADAPTER, o-ring, model 247714125†290180T AG, caution 1*These parts are not included on model 247717† Not shownFN Part No.DescriptionQty ti11467b64b4a18271013111215161413910781112111222T orque to 7-10 ft. lbs (9-13 N•m)112T orque to 15 - 25 in. lbs (1.7- 2.8 N•m)22Parts312789F 11PartsXDV20 Non-metered ValvesFN Part No.Description Qty 115M660HANDLE, valve, medium duty 1215U704SEAT , valve 13277673ROD, push 14256164KIT, filter, includes 4a and 4b 14a STRAINER 104b WASHER, plain 106247344SWIVEL, straight, 1/2 NPT models 247718, 247721, 247724124H097SWIVEL, straight, 1/2 BSPT, mod-els 24H413, 24H414, 24H417124H098SWIVEL, straight, 1/2 BSPP , mod-els 24H407, 24H408, 24H411247345SWIVEL, straight, 3/4 NPT models 247722, 247723, 24772524H099SWIVEL, straight, 3/4 BSPT, mod-els 24H415, 24H416, 24H418124H100SWIVEL, straight, 3/4 BSPP , mod-els 24H409, 24H410, 24H4127110637SCREW, machine, pan head 28191315CAM 19113574SEAL, quad ring 210191552WASHER, flat211*KIT, nozzle and extension, page 12112*113114680PIN, dowel 11415R016LATCH, pin 11515M886TRIGGER 11615R015LATCH, arm 11715R014LATCH, spring 11815R013LATCH, lever 120113493SPRING, compression 122†172479T AG, warning 12415U700PLUNGER, trigger, lift 12515U701SPRING, secondary 126†290180T AG, caution 1* These parts are not included on models 247724 or 247725† Not shownFNPart No.Description Qty ti12076a664b4a20217103121111710989171613181415T orque to 7-10 ft. lbs (9-13 N•m)1Torque to 15- 25 in. lbs (1.7- 2.8 N•m)222112524Parts12312789FSDV15 Nozzle Extension KitsPart No.DescriptionFluid Type*illustration note255852*Automatic, non-drip quick close nozzle with rigid extension.Oil255853*Automatic, non-drip quick close nozzle with flexible extensionOil255854Non-drip, quick close nozzle with rigid exten-sionGear Lube*Used for dispensing 5gpm (22.7 lpm) or less.continuedti11826ti11827ti11825ti11827ti11831ti11830ti12078aParts312789F 13255855*Non-drip, quick close nozzle with rigid exten-sionAnti-freeze255856*Non-drip, quick close nozzle with flexible extensionAnti-freeze255857Non-drip, quick close, high-flow nozzle with rigid extension Oil and Anti-freeze255858Non-drip, quick close, high flow nozzle with flexible extension Oil and Anti-freeze*Used for dispensing 5gpm (22.7 lpm) or less.Part No.Description Fluid Type*illustration noteti11826ti11828ti11825ti11828ti11826ti11829ti11825ti11829Parts14312789FSDV15 Nozzle KitsPart No.DescriptionQtyFluid Type255459*Automatic, non-drip, quick-close nozzle Oil• BODY , nozzle 1• O-RING, packing 1• SPRING, compression 1• O-RING, packing 1• STEM, nozzle, valve 1• SEAT, valve1255460*Automatic, non-drip, quick-close nozzle Anti-freeze• BODY , nozzle1• SPRING, compression 1• O-RING, packing 1• STEM, nozzle, valve,1• O-RING, packing 1• SEAT, valve1255461Automatic, non-drip, high-flow nozzle Oil and Anti-freezea • STEM, nozzle, qty 1b • BODY , nozzle, qty 1c • O-RING, packing, qty1d • O-RING, packing, qty 1e • O-RING, packing, qty 1255470Non-drip, quick-close nozzle Gear Lube • Housing 1• Body, nozzle 1• O-RING, packing 1• O-RING, packing,1• Plug, Hollow, hex1*Used for dispensing 5gpm (22.7 lpm) or less.Parts312789F 15XDV20 Nozzle Extension KitsXDV20 Nozzle KitsPart No.DescriptionFluid Type*illustration note255921Non-drip quick close,high flow nozzle with rigid extension. Oil and Anti-freeze255859Non-drip quick close, high flow nozzle with flexible extension.Oil and Anti-freezeti12680ati12679aPart No.DescriptionQtyFluid Type255793Non-drip, quick close, high flow nozzle Oil and Anti-freeze• O-RING, packing 1• O-RING, packing 1• BODY , nozzle, high flow 1• O-RING, packing 1• STEM, nozzle, heavy duty1Technical Data16312789FThermal Relief KitsTechnical DataPart No.DescriptionPSI (bar) Rating 112353Diaphragm pump for fuel dispense, valve only 50 psi (3.4 bar)235998Mini Fire-Ball ™ 225, 3:1 600 psi (41 bar)237601Fire-Ball 425, 3:1600 psi (41 bar)237893Fire-Ball 300, 5:1 and Fire-Ball 425, 6:1 900 psi (62 bar)248296Fire-Ball 300, 5:1 and Fire-Ball 425, 6:1 (same as 237893 minus bung adapter and swivel. Includes 6-foot hose)900 psi (62 bar)238899Diaphragm pump 150 psi (10.4 bar)240429Fire-Ball 425, 10:11600 psi (110 bar)248324Fire-Ball 425, 10:1 (same as 240429 minus bung adapter and swivel. Includes 6-foot hose)1600 psi (110 bar)Maximum Flow RangeSDV1515 gpm (56.8 lpm)XDV2020 gpm (75 lpm)Maximum Working Pressure SDV15/XDV201500 psi (102 bar)SDV15/XDV20 Weight 0.4 lbs (0.18 kg)Inlet See pages 2 and 3 for models and configuration information OutletSDV153/4 - 16 straight thread o-ring boss XDV207/8 - 14 straight thread o-ring Operating temperature range -40°F to 180°F (-40°C to 82°C)Wetted partsAluminum, Stainless Steel, CS, Acetal, Nitrile Rubber, TPE Fluid compatibilityAntifreeze, gear lube, oilNotes Notes312789F17All written and visual data contained in this document reflects the latest product information available at the time of publication.Graco reserves the right to make changes at any time without notice.Original instructions. This manual contains English. MM 312789For patents see: /patentsGraco Headquarters: MinneapolisInternational Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441Copyright 2008, Graco Inc. is registered to I.S. EN ISO 90015/2008, Revised May 2016Graco 7-Year Meter and Valve WarrantyGraco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period from the date of sale as defined in the table below, repair or replace equipment covered by this warranty and determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution ofnon-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE .Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within one (1) year past the warranty period, or two (2) years for all other parts.GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOTMANUFACTURED BY GRACO . These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise.Graco InformationTO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.Phone: 612-623-6928 or Toll Free: 1-800-533-9655, Fax: 612-378-3590Graco 7-Year Meter and Valve Extended WarrantyComponentsWarranty PeriodStructural Components 7 years Electronics3 years Wear Parts - including but not limited to o-rings, seals and valves1 year。
HH44R-10缓冲型旋启式止回阀说明书
HC44R-10型旋启式缓闭防振耐蚀止回阀 使用说明书铁岭市求精阀门厂2013年2月1用途、特点及主要性能规范1.1 主要用途本系列止回阀用于在介质为水、油等液体的管道上,安装在泵出口位置,用来防止介质的逆流和破坏性的水锤。
1.2 特点:1.阀瓣轻、开启角度大、减少流阻,降低能耗。
2.配有调节阻尼油缸为水锤消除机构、设计新颖、结构合理、性能可靠。
3.运动平稳、无震动、无噪音、安全可靠。
4.耐磨损、使用寿命长。
5.适用介质有清水、污水、海水及油品等。
1.2性能规范:型 号 HC44R-10公称压力 1.0MPa适用介质 水、循环水试 验 压 力壳 体 1.5MPa密 封 1.1MPa工作压力P8 1.0MPa介质温度 (℃) ≤80℃其密封渗漏量符合GB/T 13927-2008标准A级(无渗漏)的规定。
2. 主要结构、外形及连接尺寸2.1.结构说明:本止回阀系法兰连接。
2.2本止回阀具体结构及外形尺寸详见图1、表1。
图1.HC44R-10型缓闭防振耐蚀止回阀主要结构、外形及连接尺寸图1.阀体2.阀盖3.阀体密封圈4. 阀杆5. 摇杆6.阀瓣7.阀瓣密封圈8.缓冲装置9.重锤杆 10.重锤表1 DN PN D D1 D2 b f L H B n-d 备 注 700 10 895 840 794 40 5 1448820158024-∅313工作原理:3.1阀门工作原理:当管路内介质正向流动时,借助进口压力作用,使阀瓣旋转开启,介质通过。
同时油缸内油经单向阀导通,阀瓣通过阀杆和摇杆带动平衡锤旋转,到达开启位置。
油缸内液压油产生的阻尼作用可以避免阀瓣开启过快与阀体产生撞击。
当水泵停泵,介质停止流动或逆流时,阀瓣依靠自重、重锤的辅助及逆流的作用,使阀瓣向关阀方向回落,但由于缓冲油缸内单向阀截止,腔内液压油只能通过节流口回油,因此阀瓣的回落速度取决于节流口的流速,调节节流口的过流面积,即可控制止回阀关闭的时间。
WR22O_CA-10 型号的液压阀门说明书
-Screw-in cartridge valve -For cavity DC-All external parts with zinc-nickel coating according to DIN EN ISO 19598-Installation in threaded port body type DC-12-The slip-on coil can be rotated, and it can be replaced without opening the hydraulic envelope -High pressure wet-armature solenoids-Various plug-connector systems and voltages are available-Seat tight shut-off-No external pilot drain required -High flow rates -Low head loss-Reliable switching, even after long dwell times -With manual override-Also available as stack valveDirectional valve 2-way/2-positionQ max = 140 l/min, p max = 350 barpilot operated, poppet type, switching solenoid with emergency overrideType series: WR22O_CA-10…DescriptionThe 2-way/2-position solenoid operated spool valves, series WR22_C… are size 10, two stage, screw-in val-ves with an M24x1.5 mounting thread. The main stage as well as the pilot stage are designed on the proven poppet seat design, which ensures that the cartridges are leak-tight from B to A. The straightforward design delivers an outstanding price/performance ratio and good pressure loss/volume flow ratings. All external parts of the screw-in valves are zinc-nickel plated andare thus suitable for use in the harshest operating en-vironments. The slip-on coils can be replaced without opening the hydraulic envelope and can be positioned at any angle through 360º. These valves are used in mobile and industrial applications where leak-tight shutoff functions are crucially important. Examples are where loads, tensions, or clamping forces must be held without leakage. For self-assembly, please refer to the section related data sheets.SymbolTechnical DataNOTE!The switching safety of the valve is achievedby the volume flow and pressure drop (Δp).NOTE!The switching time can be strongly de-pendent on flow rate, pressure, oil viscosity and the dwell time under pressure. In practice, the switching time may th-erefore deviate from the specified value range.Performance graphsmeasured with oil viscosity 33.0 mm²/s (cSt), coil at steady-state temperature and 10 % undervoltage p = f (Q) Performance limitΔp = f (Q) Pressure drop-flow rate characteristic400-PG-0009Q [l/min (gpm)]p [bar (psi)]0204060801001201400100 (1400)200 (2900)300 (4300)350 (5000)150 (2100)250 (3600)50 (700)(5)(10)(15)(21)(26)(31)(36)1) A → B, solenoid de-energizing 2) B → A, solenoid de-energizing400-PG-031404 (60)8 (120)16 (230)12 (170)20 (285)24 (340)Q [l/min (gpm)]140100802040601200p [bar (psi)]∆(36)(26)(21)(5)(10)(15)(31)1)2)Dimensions and sectional viewA Installation informationNOTE!1) When fitting the screw-in cartridge valve, use the specified tightening torque. The value can be found in the chapter "technical data". ATTENTION!Only qualified personnel with mechanical skills may carry out any maintenance work. Generally, the only work that should ever be undertaken is to check, and possibly replace, the seals. When changing seals, oil or grease the new seals thoroughly before fitting them.NOTE!The seals are not available individual-ly. The seal kit order number can be found in the chapter "Technical data".Ordering codeCJTIT D DTS N E W R 22O CA ... Q Z ... R101 ... 9... D A(blank)V M100F Related data sheets****************************© 2021 by Bucher Hydraulics AG Frutigen, 3714 Frutigen, SwitzerlandAll rights reserved.Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual improvement, we reserve the right to amend the product specifications contained in this catalogue.。
三合一多功能止回阀说明书
三合一止回阀说明书一、简介、三合一止回阀安装在一般建筑,公寓及工厂的供排水,冷暖水处理,及锅炉的冷凝水,二次供水管道的泵出口上,用来防止泵停止运转而引起的管道内的介质倒流。
多功能三合一止回阀,是水泵出口上推荐使用的阀门,当水泵停止工作时,可以快速止回,这样就可以防止水锤产生.当泵初始运行时,阀瓣在凭借水底推力打开,阀门开启,同时弹簧在弹簧力的凭借下快速的关闭了,随着水流越来越小,几乎停止时,阀瓣完全闭合三合一多功能止回阀.没有水回流倒流现象,这样因为水不回流不倒流,不产生能动,防止水锤现象.二、结构特点1、用一个阀门,可以圆满地完成三种功能:止回阀、截止阀、平衡阀。
2、泵停止运转时,弹簧力先合上阀瓣,因而防止倒流。
3、通过调节开度,可以调节泵的输出量。
4、密封垫用丁腈橡胶制作,因而根本不会泄漏,可以吸收冲力。
5、弹簧是用不锈钢制作,因而具有很强的耐蚀性。
6、可节约水量的设备材料和费用,缩小安装空间。
7、由于形状和结构高等成流线型,因而压降很小。
8、水平管道,垂直管道上均可安装。
三工作原理当水泵启动后,液体从进口进入,顶开阀瓣,流向出口.当水泵停止时,由于阀瓣上安装了快闭弹簧,在介质出现倒流之前,流速接近于零时迅速关闭,防止了水锤的产生,消除了噪音.调节阀杆开度,可改变流量的大小.关闭阀杆,可起到截止阀的作用.主要用于水泵出口或其它防止液体倒流的地方,可有效的防止普通止回阀液体倒流时产生的水锤冲击和噪音,是止回阀的更新换代产品.安装了加速关闭弹簧,利用快关原理防止水锤的产生,防止介质倒流,达到静音关闭.四、适用范围三合一止回阀安装在一般建筑,公寓及工厂的供排水,冷暖水处理,及锅炉的冷凝水,二次供水管道的泵出口上,用来防止泵停止运转而引起的管道内的介质倒流。
五、管道比较图六,外形尺寸三合一止回阀主要外形尺寸七,安装及维护1、安装时要注意阀体外水流标示(箭头)如果箭头模糊不清,可观察阀门通经两侧以低进高出的原则安装,遵循方向安装,垂直、水平均可.2、止回功能:本产品出厂前调节杆为关闭状态安装管道后应逆时针旋转手轮使阀杆上升到最大刻度位置.3、截止功能:顺时针旋紧手轮即可截断流量达到截止功能.4、节流平衡功能:调节阀杆在开度最大的情况下顺时针旋转手轮可使流量变小;反之变大.在变频泵的领域中此功能可以起到降低能耗之功效.。
止回阀zGLO Fig. 201用户手册说明书
USERS MANUALStop valve zGLO Fig. 201Edition: 07/2016 Date: 01.07.2016CONTENTS1. Product description2. Requirement for maintenance staff3. Transport and storage4. Function5. Application6. Assembly7. Maintenance8. Service and repair9. Reasons of operating disturbances and remedy 10. Valve service discountinuity 11.Warranty terms1. PRODUCT DESCRIPTION201figureends threaded form straightStop valves are manufactured at different executions, they are designed for shut off and open the flowStop valves are provided with casted marking according to requirements of PN-EN19 standard. The marking facilitates technical identification and contains:∙ diameter nominal DN (mm), ∙ pressure nominal PN (bar),∙ body and bonnet material marking,∙ arrow indicating medium flow direction, ∙ manufacturer marking, ∙ heat number,∙ CE marking, for valves subjected 2014/68/UE directive. CE marking starts from DN322. REQUIREMENTS FOR MAINTENANCE STAFFThe staff assigned to assembly, operating and maintenance tasks should be qualified to carry out such jobs. If during valve operation heat parts of the valve, for example handwheel, body or bonnet parts could cause burn, user is obliged to protect them against touch.3. TRANSPORT AND STORAGETransport and storage should be carried out at temperature from –200 to 650C, and valves should be protected against external forces influence and destruction of painting layer as well. The aim of painting layer is to protect the valves against rust during transport and storage. Valves should be kept at unpolluted rooms and they should be also protected against influence of atmospheric conditions. There should be applied drying agent or heating at damp rooms in order to prevent condensate formation. The valves should be transported in such a way to avoid handwheel and valve stem damage.4. FUNCTIONApplication range was mentioned at catalogue card. The kind of working medium makes some materials to be use or to be prohibited for use. Valves were designed for normal working conditions. In the case that working conditions exceed these requirements (for example for aggressive or abrasive medium) user should ask manufacturer before placing an order.When selecting the valve for specific medium,”List of Chemical Resistan ce ” can be helpful. It can be found at manufacturer website near catalogue cards.Working pressure should be adapted to maximum medium temperature according to the table as below.ZETKAMA Sp. z o.o. ul. 3 Maja 12PL 57-410 Ścinawka ŚredniaAcc. to EN 1092-2 Temperature [º C]Material PN -10 do 120 150 200EN-GJL250 16 16 bar 14,4 bar 12,8 barPlant designer is responsible for valve selection suitable for working conditions.5.APPLICATIONApplication range was mentioned at catalogue card.6.ASSEMBLYDuring the assembly of balancing valves following rules should be observed:-to evaluate before an assembly if the valves were not damaged during the transport or storage,-to make sure that applied valves are suitable for working conditions and medium used in the plant,-to take off dust caps if the valves are provided with them,-to protect the valves during welding jobs against splinters and used plastics against excessive temperature,-steam pipelines should be fitted in such a way to avoid condensate collection; in order to avoid water hammer steam trap should be applied.Pipeline where the valves are fitted should be conducted and assembled in such a way that the valve body is not subjected to bending moment and stretching forces.Bolted joints on the pipeline must not cause additional stress resulted from excessive tightening, and fastener materials must comply with working conditions of the plant,-during pipeline painting valve stem should be protected,-stop valves can be assembled in any position, however it is recommended to install the valve with handwheel upwards, -screw down and non-return valves (version with spring) can be assembled in any position, screw down and non-return valves (version without spring) should be assembled only on the horizontal pipelines with handwheel upwardsIt should be take note of medium flow direction, marked with an arrow on the body.-before plant startup, especially after repairs carried out, flash out the pipeline through entirely open valve, in order to avoid solid particles or welding splinters which may be harmful for sealing surfaces,-strainer ( wire mesh filter) installed before the valve increases certainty of its correct action.7.MAINTENANCEDuring maintenance following rules should be observed:-startup process – sudden changes of pressure and temperature should be avoided when starting the plant,- valve is closed by turning the handwheel clockwise when looking from above the handwheel (according to arrow direction marked on the handwheel),-valve is opened by turning the handwheel counter-clockwise,It is prohibited to use additional lever when turning the handwheel,-performance of fitted valves can be checked by multiple closing and opening,-if leakage on stem occurs for valves Fig.201 packing rings are pressed by tightening threaded gland nut screwed in the bonnet, the nut press the rings by gland,Tighten the nuts-in the case of necessity to replace packing rings, it should be done without overpressure inside the valve, when the valve is completely open. In this position inner space of the valve is entirely shut off,-in order to refill packing rings of valves can be refilled when gland nut is unscrewed.In order to assure safety performance, each valve (especially rarely used) should be surveyed on regular basis.Inspection frequency should be laid down by user, but not less than one time per month.8.SERVICE AND REPAIRAll service and repair jobs should be carried out by authorized staff using suitable tools and original spare parts. Before disassembly of complete valve from the pipeline or before service, the pipeline should be out of operation. During service and repair jobs it is necessary to decrease pressure to 0 bars , valve temperature to ambient temperature and to use personal health protectives in pursuance of existing threat. After valve disassembly it is necessary to replace flange connection gaskets between valve and pipelineEverytime when valve bonnet was disassembled sealing surface should be cleaned. During assembly it should be applied new gasket of the same type as previously used. Body-bonnet bolt connections should be tighten when the valve is at open position.The bolts should be tighten evenly and crosswise by torque wrench.Tightness test should be carried out with water pressure of 1,5 nominal pressure of the valve.9.REASONS OF OPERATING DISTURBANCES AND REMEDY-When seeking of valve malfunction reasons safety rules should be strictly obeyedFault Possible reason RemedyNo flow Valve closed Open the valveFlange dust caps were not removed Remove dust caps on the flangesPoor flow Valve is not open enough Open the valveDirty filter Clean or replace the screenClogged pipeline Check the pipelineControl difficulties Dry stem Grease the stemGland packing tighten too much Slightly slacken gland nuts. Put attention tokeep stuffing box tightnessStem leakage Too much loose on the gland Tighten the gland untill tightness willbe reachedIf necessary add packing rings instuffing box. Keep special caution. Seat leakage Shut off not correct Tighten the handwheel without anyauxiliary toolsUszkodzone gniazdo lub grzybekSeat or disc damage Replace the valve and contact supplieror manufacturerApply the valve with balancing disc.Pressure difference too muchCheck if the valve was assembledaccording to arrow direction markedon the valve.Clean the valve. Fit strainer before the Medium polluted with solid particlesvalve.10.V ALVE SERVICE DISCOUNTINUITYAll obsolete and dismantled valves must not be disposed with houshold waste. ZETKAMA valves are made of materials which can be re-used and should be delivered to designated recycling centres.11.WARRANTY TERMS- ZETKAMA grants quality warranty with assurance for proper operation of its products, providing that assembly of them is done according to the users manual and they are operated according to technical conditions and parameters des cribed in ZETKAMA’s catalogue cards. Warranty period is 18 months starting from assembly date, however not longer than 24 months from the sales date. - warranty claim does not cover assembly of foreign parts and design changes done by user as well as natural wear.- immediately after detection the user should inform ZETKAMA about hidden defects of the product- a claim should be prepared in written form.Address for correspondence :ZETKAMA Sp. z o.o.ul. 3 Maja 1257-410 Ścinawka ŚredniaPhone +48 74 86 52 111Fax +48 74 86 52 101Website: 。
液压止回阀说明书
目录1.产品简介2.型号说明3.标准与规范4.基本参数5.特殊参数6.主要零件选用材料7.外形及连接尺寸8.产品结构说明9.电液工作原理及操作说明10.吊装及调试维护11.一般故障及排除方法12.阀门成套供应范围蓄能器式液控缓闭止回蝶阀1.产品简介液控缓闭止回蝶阀是目前国内外较先进的管路控制设备,主要安装于水电站水轮机进口,用作水轮机进口阀;或安装于水利、电力、给排水等各类泵站的水泵出口,替代止回阀和闸阀的功能。
工作时,阀门与管道主机配合,按照水力过渡过程原理,通过预设的启闭程序,有效消除管路水锤,实现管路的可靠截止,起到保护管路系统安全的作用。
本公司生产的液控缓闭止回蝶阀流阻系数小、自动化程度高、功能齐全、性能稳定可靠,是我公司设计人员在广泛搜集、研究、总结国内外同类产品性能的基础上,引入阀门、液压、电气等行业的多项研究成果,厚积而薄发,开发出来的新一代智能化高效节能产品。
公司技术力量雄厚,并可根据用户的特殊要求单独进行设计,多方位满足广大用户对该类产品的需要。
该产品主要有如下特点:1、可取代水泵出口处原电动闸阀和止回阀的功能,且机、电、液系统集成为一个整体,减少占地面积及基建投资。
2、电液控制功能齐全,无需另外配置即可以作为一个独立的系统单机就地调试、控制;也可以作为集散性控制系统(DCS)的一个设备单元,通过I/O通道由中央计算机进行集中管理,与水泵、水轮机、旁通阀及其他管道设备实现联动操作;并配有手动功能,无动力电源时也可以实现手动开、关阀,满足特殊工况下的阀门调试、控制要求。
3、可控性好,调节范围大、适应性强。
电液控制系统设有多处调节点,可以按不同的管道控制要求进行启闭程序设置,保证在满足开、关阀条件时,阀门能够且才能够自动按预先设定的时间、角度开启和分快、慢二阶段关闭。
并能实现无电关阀,有效消除破坏性水锤,防止水泵和水轮机组飞逸事故的发生,降低管网系统的压力波动,保障设备的安全可靠运行。
止回阀技术规格书
止回阀技术规格书止回阀采用碟板型油压微阻缓闭消声式的,并能承受相当系统压力的压强,开启时阀板的自重力在轴上,是中线水平开启,能够有效地消除停泵回流产生的水锤及噪音,在阀门进水口方向的左侧装有一套油压缓闭消声装置,用来自动控制阀板的关闭程序,先速闭后缓闭,用缓闭来降低水锤峰值,消除回流冲击震动而产生的噪音。
在阀门进水左侧的轴端上固定一个阻尼杆与阀板同步旋转,可指示阀板的开启位置,关闭时控制阀板缓闭。
所有内部部件应能更换,必要时阀应有与阀体浇铸的支撑脚座,并具有下列特性:(1)阀门关闭时回流水锤峰值不大于工作压力的1.2倍(2)有足够大的可拆卸阀套便于检修内部装置,并能将阀板从主体上拆下。
(3)阀体底部可安装一个排水塞;(4)阀板缓闭时间60秒至0秒可调;(5)阀座止口的密封材料采用不锈钢和橡胶;(6)阀门的关闭件逆止口、阀板、阀板轴、轴套全部采用不锈钢、黄铜、橡胶等防腐耐磨材料制造。
法兰结构与阀体铸成一体,法兰尺寸根据GB4216,GB9112和GB9113而定。
1 结构阀门采用全流域面积式,主要由阀体、阀盖、钢棒、橡胶瓣组成。
橡胶瓣以钢板和强化尼龙布为亲体,采用丁晴橡胶进行整体包胶,要求包胶贴紧密、几何尺寸精确,密封弹性佳,彻底将钢板与流体隔离。
橡胶瓣的上部为没有钢骨架的弹性段,橡胶瓣背部上设有弹性开启限位装置橡胶瓣关到位时与阀门轴线成450角,以达到减少开启阻力,实现快开快关。
采用双法兰式,法兰要与阀体铸为一体,法兰的连接尺寸要符合GB/T17241.6-98的有关规定。
2 主要部件材质阀体、阀盖、法兰:铸铁(QT450-10)。
3 密封阀盖与阀体之间的O型密封圈采用丁晴橡胶圈。
阀门的压力试验要符合GB/T13927-92的规定。
4 伸缩节构造A 所有限位及传力伸缩接头皆为双法兰结构。
B 伸缩接头本体不应有擦伤、沟槽或碰撞形成的明显凹陷,并不得有裂纹、结疤、折叠、分层等缺陷C 因介质为污水,伸缩接头应进行镀锌和防腐喷涂处理。
多功能硬密封缓开缓闭止回阀说明书
多功能硬密封缓开缓闭⽌回阀说明书多功能硬密封缓开缓闭⽌回阀说明书DXH944H-10C-16C多功能硬密封缓开缓闭⽌回阀1. 产品简介本产品为带动⼒装置及空程耦合器, 兼有电动/ ⼿动开阀、关阀、短时节流作⽤的多功能(缓闭)⽌回阀;阀座为倾斜式、全⾦属密封副、蝶板双偏置、过流元件带导流体并设油压缓闭装置,可分:快/ 慢两阶段关阀;本产品是⼀种新型多功能防⽔锤节能型产品。
可⼴泛应⽤于⽯化、冶⾦、电⼒及城镇给排⽔等系统,它在⽔泵起动或正常停泵时,同时可起到“出⽔阀”和“⽌回阀”运⾏功能;⽔泵突然失电,事故停泵时,可⾃动、有序(快/ 慢两个阶段)关阀,完全起⽌回阀作⽤,防⽌⽔体倒流,防⽌破坏性⽔锤发⽣,确保泵站安全。
2. 性能特点( 参见图1)①带动⼒装置及空程耦合器,具有电动/ ⼿动开阀、关阀、短时节流及⾃动⽌回功能。
②采⽤全⾦属密封副,使⽤寿命长,免维护免更换。
③阀座为倾斜式,阀门启闭⾏程短,启闭性能良好。
④关阀缓闭装置性能可靠,⼀旦与系统调整、匹配好后,可有效防⽌破坏性⽔锤的发⽣。
⑤蝶板为双偏置结构,阀门启闭运动合理。
⑥阀腔过流元件,按流体⼒学原理设计,流阻特性好,节能效果明显。
⑦轴系轴承部件采⽤新型⾃润滑材料可确保阀门长期使⽤启闭灵活、不卡滞。
⑧设弹簧助关机构。
⑨结构长度按GB12221 规定,结构长度短,重量轻。
⑩使⽤中注意事项⽤警⽰标牌标出,直接告⽰⼀线操作者;使⽤操作简单⽅便。
3. ⼯作原理( 参见图1、图2)●本产品带有动⼒装置、减速箱及空程耦合器, 通过减速箱驱动空程耦合器与蝶板/ 阀轴,当两耦合器齿⽖结合时,可实现电动/⼿动开阀、关阀、短时节流;当两耦合器齿⽖处于空程(最⼤90°)位置时,蝶板可在12°(蝶板倾斜12°)-90°范围内⾃由运动,在⽔泵突然失电,事故停泵时,可⾃动关阀,完全起⽌回阀作⽤。
●当应⽤于离⼼泵时,⼀般要求关阀(或⼩开度)起动⽔泵,本产品可电动关阀,相关机构压住蝶板,建⽴封闭压⼒,之后, 电动开向运⾏,相关机构不再压制蝶板, 蝶板在动⽔作⽤下开启;⽔泵运⾏时,蝶板将稳定在⼀定开度下平稳⼯作( 当⽔泵出⼝与本产品连接的短管太短、⼤⼩头直径⽐太⼤时,⽔泵出⼝处的⽔流,将处于湍流状态——设计上应该尽量避免出现这⼀状态,因为在这⼀状态下,流阻⼤,能耗⾼;在此情况下,本产品蝶板可能发⽣振摆,但不影响正常使⽤)。
止回阀技术说明【范本模板】
止回阀技术说明止回阀的工作原理和特性:止回阀的功能是控制管道内介质单向流向的阀门,用来防止管路中的介质倒流。
靠管路中介质本身的流动产生的力而自动开启和关闭的,属于一种自动阀门。
用于管路系统,其主要作用是防止介质倒流、防止泵及其驱动电机机反转,以及容器内介质的泄放。
止回阀属于自动阀类,启闭件靠流动介质的力量自行开启或关闭.止回阀只用于介质单向流动的管路上,阻止介质回流,以防发生事故。
主要用于石油、化工、制药、化肥、电力等管路上.旋启式止回阀的阀瓣绕转轴作旋转运动.其流体阻力一般小于升降式止回阀,它适用于较大口径的场合.旋启式止回阀根据阀瓣的数目可分为单瓣旋启式、双瓣旋启式及多瓣旋启式三种。
单瓣旋启式止回阀一般适用于中等口径的场合。
大口径管路选用单瓣旋启式止回阀时,为减少水锤压力,最好采用能减小水锤压力的缓闭止回阀。
双瓣旋启式止回阀适用于大中口径管路.对夹双瓣旋启式止回阀结构小、重量轻,是一种发展较快的止回阀;多瓣旋启式止回阀适用于大口径管路。
采用内装摇臂旋启式结构,阀门的所有启闭件都装于阀体内部,不穿透阀体,除了中法兰部位用密封垫片或密封环密封外,整体没有外漏点,杜绝了阀门外泄的可能。
旋启式止回阀摇臂和阀瓣连接处采用球面连接的结构,使得阀瓣在360℃范围内有一定的自由度,有适当的微量位置补偿。
旋启式止回阀密封副的密封面堆焊合金钢(13Cr)或硬质合金Stellite6,即使用在有细颗粒的介质中并不会因冲蚀而很快磨损。
性能特点及工作原理:性能特点该产品应用于石油、化工、电力、冶金、制药、城建等行业管道上,用来接通或截断管路中介质.工作原理2。
1本阀由阀体、阀盖、阀瓣、摇杆、销轴、螺栓、螺母、垫片等组成。
2.2止回阀的阀瓣在流体压力作用下开启,流体从进口侧流向出口侧,当进口侧压力低于出口侧时,阀瓣在流体压差、本身重力等因素作用下自动关闭以防止流体倒流.结构特点我厂该系列产品采用旋启式结构,具有结构比较简单,制造与维修较方便,铸造工艺性较好,动作可靠,启闭时间短,阀门高度小,密封可靠等优点。
止回阀技术说明书
止回阀系列外置油缸蝶式止回HH47X蝶式微阻缓闭止回阀HH49X外置油缸微阻缓闭止回阀HH44X橡胶瓣止回阀HC44X静音止回阀H42X静音止回阀H41X型号编制说明HH47X外置油缸蝶式止回阀引述目前常用的蝶式微阻缓闭止回阀依靠介质通过液压管路推动缓闭油缸活塞,以带动缓闭液压系统工作,这种液压缓闭原理由于介质与活塞及管路系统直接接触,液压系统常受到介质中的杂质的影响,特别是在用于污水处理系统介质的杂质常常阻塞液压管路导致微阻缓闭功能失效。
在这种情况下我们开发了一种外油缸式的微阻缓闭蝶式止回阀。
依据同样原理我们还研制了一种外油缸式旋启式微阻缓闭止回阀,我们将在下面做详细的介绍。
工作原理本止回阀主要有阀体、阀板、转轴、摇臂、缓冲液压缸等组成。
本阀靠进口介质压力推动阀板开启使介质通过,阀板通过转轴带动摇臂将缓冲液压缸中的活塞杆拉到开启位置。
当介质停止流动是(如泵突然停止运动)由于阀板自重及介质倒流作用,是阀板自动关闭。
由于缓冲液压缸的作用,阀板关闭分两个阶段从全开位置(850)到运行了700为快关段,阻尼装置作用小,700以后阻尼装置作用大,为慢关段,且慢关的时间可通过调节缓冲液压缸的溢流阀进行调整,以消除破坏性水锤(将水锤压力控制在工作压力的 1.2~1.5倍之间,并控制介质倒流时,水泵倒转速度不超过水泵额定转速的1.3倍)。
注:因该阀门主要是在管网正常供水状态下出现断电事故时,起到消除破坏性水锤,保护泵及管道的作用,且能达到零泄漏。
故在正常供水、停水(即无倒流介质水锤)状态下(先关出口蝶阀,后停泵),该阀门不关闭。
打开从此注油。
(正常情况下越3~4个月补充一次)特点1、体积小、重量轻、结构紧凑、维修方便2、缓闭装置设计新颖,结构紧凑便利,性能稳定可靠,且位于管线之外,避免了污染介质。
3、运行平稳、无震动、无噪音。
4、采用双偏心结构,其结构参数确定在最佳值,有利于减少流阻和振动,减少水锤影响。
5、达到完全密封,无泄漏。
3ZV1型号液压阀门产品说明说明书
®3ZV1 Series Zone Valves are ideal for flow control in hot and cold water HVAC systems. The 3ZV1 is electrically driven to open and spring to close. Units are available in 1/2˝, 3/4˝, and 1˝ sizes with 24 or 120 VAC power supply. Easy to install these units are direct replacements for competitor units. Manual override lever is easily accessible externally. Consult factory for 220 VAC power supply, optional auxiliary switches, and BSP or sweat connections.SPECIFICATIONSService: Compatible fluids.Body: 3-way.Line Size: 1/2˝ to 1˝.End Connections: Female NPT (optional BSP , sweat connections).Pressure Limits: Maximum: 300 psi (20.7 bar); Close-off: see model chart.Temperature Limits: Ambient: 32 to 104°F (0 to 40°C); Process: 32 to 201°F (0to 94°C).Wetted Materials: Brass, stainless steel, NBR.Flow Characteristic: Quick opening.Power Requirements: 120 VAC or 24 VAC, ±10%, 50/60 Hz. (Optional 220VAC).Power Consumption: 6.5 W.Input: On/off.Electrical Connection: 22 AWG, 5˝ (127 mm) long.Cycle Time: Opening time: 11 seconds; Closing time: 5 seconds.Enclosure Rating: General purpose.Housing Material: Aluminum.Model 3ZV10223ZV10243ZV10323ZV10343ZV10423ZV1044Cv 3.783.783.783.788.028.02Size 1/2˝1/2˝3/4˝3/4˝1˝1˝Supply Voltage 120 VAC 24 VAC 120 VAC 24 VAC 120 VAC 24 VACClose-off Pressure psi (bar)22 (1.5)22 (1.5)14.5 (1.0)14.5 (1.0)10 (.70)10 (.70)Instructions for OperationNormally-closed 2-way and diverting 3-way valve are installed as Figure 1, 2 and 3 shows. For highbuilding, pressure –reducing valves should be installed on branch pipes at ground floor.Note: When the valve is mounted on a horizontal pipe, the angle must be positioned less than 85°(see Figure 4).When the valve is mounted on a vertical pipe, prevent from dripping.Manual operating lever: Move the manual operating lever slowly and hold in the retaining notch, and then the valve is in normal-opened position. When the valve is first powered on, the lever goes back to the automatic position again.Fig. 1 Two-way valve Fig. 2 Three-way valveFig. 4Fig. 3 Three-way valve with box change-over switch©Copyright 2014 Dwyer Instruments, Inc.Printed in U.S.A. 9/14FR # R3-443459-10 Rev. 2MAINTENANCEUpon final installation of the Series 3ZV1 Three-Way Zone Valves, no routine maintenance is required. A periodic check of the system calibration is recommended. The Series 3ZV1 is not field serviceable and should be returned if repair is needed (field repair should not be attempted and may void warranty). Be sure to include a brief description of the problem plus any relevant application notes. Contact customer service to receive a return good authorization number before shipping.When installing a diverting 3-way valve, end “B” is the supply to the coil, end “A” is the by-pass. There is no mark for an inlet. End “A” and “B” are marked on the bottom of the valve.When the valve has an auxiliary micro switch, the wiring diagram is as follows:。
Parker Hannifin 产品说明书:液压阀门系列 2-路阀门 GS02 22 SV7
DC MV SV PV CE BC TD
Rated Flow (At 70 PSI ∆P)
13 LPM (3.5 GPM)
Maximum Inlet Pressure
350 Bar (5000 PSI)
Leakage at 150 SSU (32 cSt)
82 cc/min @ 210 Bar (3000 PSI)
• Coil: Waterproof, hermetically sealed, requires no
FC
O’Rings; Symmetrical coil can be reversed without affecting performance.
(1)
Flow Controls
PC
(2) (2)
1
2
3
Flow (Q)
2 to 1 1 to 2
15.2
18.9
4
5
Technical Data
SV7
Parker Hannifin Corporation Hydraulic Cartridge Systems
Catalog HY15-3502/US
Technical Information
Spool Type, 2-Way Valve Series GS02 22
Spool Type, 2-Way Valve Series GS02 22
Shuttle Valves
Features
Load/Motor Controls
• LM
High flow capacity
• One piece cartridge housing ensures internal
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目录1.产品简介2.型号说明3.标准与规4.基本参数5.特殊参数6.主要零件选用材料7.外形及连接尺寸8.产品结构说明9.电液工作原理及操作说明10.吊装及调试维护11.一般故障及排除法12.阀门成套供应围蓄能器式液控缓闭止回蝶阀1.产品简介液控缓闭止回蝶阀是目前国外较先进的管路控制设备,主要安装于水电站水轮机进口,用作水轮机进口阀;或安装于水利、电力、给排水等各类泵站的水泵出口,替代止回阀和闸阀的功能。
工作时,阀门与管道主机配合,按照水力过渡过程原理,通过预设的启闭程序,有效消除管路水锤,实现管路的可靠截止,起到保护管路系统安全的作用。
本公司生产的液控缓闭止回蝶阀流阻系数小、自动化程度高、功能齐全、性能稳定可靠,是我公司设计人员在广泛搜集、研究、总结国外同类产品性能的基础上,引入阀门、液压、电气等行业的多项研究成果,厚积而薄发,开发出来的新一代智能化高效节能产品。
公司技术力量雄厚,并可根据用户的特殊要求单独进行设计,多位满足广大用户对该类产品的需要。
该产品主要有如下特点:1、可取代水泵出口处原电动闸阀和止回阀的功能,且机、电、液系统集成为一个整体,减少占地面积及基建投资。
2、电液控制功能齐全,无需另外配置即可以作为一个独立的系统单机就地调试、控制;也可以作为集散性控制系统(DCS)的一个设备单元,通过I/O通道由中央计算机进行集中管理,与水泵、水轮机、旁通阀及其他管道设备实现联动操作;并配有手动功能,无动力电源时也可以实现手动开、关阀,满足特殊工况下的阀门调试、控制要求。
3、可控性好,调节围大、适应性强。
电液控制系统设有多处调节点,可以按不同的管道控制要求进行启闭程序设置,保证在满足开、关阀条件时,阀门能够且才能够自动按预先设定的时间、角度开启和分快、慢二阶段关闭。
并能实现无电关阀,有效消除破坏性水锤,防止水泵和水轮机组飞逸事故的发生,降低管网系统的压力波动,保障设备的安全可靠运行。
4、主阀密封副为三偏心金属密封或双偏心橡胶密封结构,启闭轻松、密封可靠;并有一道额外加大的偏心,使阀门具有良好的自关闭、自密封性能。
中、小口径蝶板设计成流线型平板结构,大口径蝶板设计面双平板桁架式结构,排挤小,水流平顺,阀门流阻系数仅为0.1~0.6,远小于止回阀的流阻系数(1.7~2.6),节能效果明显。
2.型号说明H D 7 ※ 4 1 ※–※※阀门材料:无灰铸铁Q 球墨铸铁C 碳钢公称压力:单位: kg/㎝2密封材料:X 优质丁腈橡胶H 不锈钢结构形式: 1 垂直板式3 三偏心结构(新标准)连接式:法兰连接液控特征:无普通重锤式B重锤式自动保压型S 重锤式自动保压锁定型X 蓄能器式XS 蓄能器式锁定型+P 电气为PLC智能控制驱动式:液压传动产品类别:蝶阀功能特征:缓闭止回功能3.标准与规4.基本参数5.特殊参数6.主要零件选用材料7.外形及连接尺寸1、阀体2、油缸3、摇臂4、支架5、油泵电机6、手动泵7、流量控制阀8、压力控制器9、压力表10、插装阀11、电磁阀(一)12、电磁阀(二)13、截止阀14、单向阀15、溢流阀16、蓄能器17、蓄能器截止阀18、高压软管19、行程开关20、快关调节阀21、慢关调节阀22、快慢角度调节图4 蓄能器式液控缓闭止回蝶阀外形及连接尺寸图主要外形及连接尺寸(PN=0.25Mpa)单位:(mm)✧主要外形及连接尺寸(PN=0.6Mpa)单位:(mm)✧主要外形及连接尺寸(PN=1.0Mpa)单位:(mm).✧ 主要外形及连接尺寸 (PN=1.6Mpa ) 单位:(mm )✧ 主要外形及连接尺寸 (PN=2.5Mpa ) 单位:(mm )液控缓闭止回蝶阀 液控缓闭止回蝶阀8.产品结构说明液控缓闭止回蝶阀按照控制系统蓄能类型分为重锤式和蓄能器式两大系列,其中重锤式控制系统又分为普通重锤式、重锤式自动保压型(B)和重锤式自动保压锁定型(S);蓄能器式控制系统则分为普通蓄能器式(X)和蓄能器式锁定型(XS)。
✧阀门主要由阀门本体、传动机构、液压站、电控箱等四部分组成。
✧阀门本体由阀体、蝶板、阀轴、滑动轴承、密封组件等主要零件组成。
✧重锤式阀体均采用卧式结构,阀轴采用半轴结构。
✧蓄能器式一般采用卧式布置;也可根据用户要求采用立式布置。
✧传动机构主要由液压缸、摇臂、支撑墙板(重锤式还有重锤、杠杆、锁定油缸等)等连接、传动件组成,是液压动力开、关阀门的主要执行机构。
✧传动液压缸上设有快关时间调节阀、慢关时间调节阀和快、慢关角度调节阀。
调节围见第五节<特殊参数>。
✧卧式布置时,传动机构一般采用正向安装;受现场空间限制时也可根据用户要求采用反装型(即传动装置位于阀体的另一侧,见图4~图5)。
✧液压站包括油泵机组、手动泵、蓄能器、电磁阀、溢流阀、流量控制阀、截止阀、液压集成块、油箱等零部件。
✧重锤式自动保压型系统中,蓄能器用作系统压力的补偿。
✧重锤式自动保压锁定型系统中,蓄能器用作系统压力的补偿和锁定油缸的退锁✧蓄能器式系统中,两个蓄能器互为备用,为阀门启闭提供主动力源。
✧流量控制阀用于开阀时间调节,调节围见第5节<特殊参数>。
✧手动泵用于系统调试和特殊工况下的阀门启闭。
✧液压系统电磁换向阀控制特征一般为正作用型,即:电磁阀得电蝶阀开阀、失电蝶阀关阀;反之则为反作用型,即电磁阀失电蝶阀开阀、得电蝶阀关阀。
常规配套电磁换向阀为正作用型,采用反作用型应在订货时说明。
✧液压系统与阀门本体可以是整体式安装,也可以分开安装。
用户未作特殊说明时为整体式安装。
蓄能器式采用立式布置时均为分体式安装。
9.电液工作原理及操作说明(水泵工况)本阀电气控制系统按主逻辑元件类别分为普通继电型和PLC智能控制型,出厂配套一般为普通继电型,需PLC智能控制型应在订货时说明。
各类型又分以下几种主要工况:✧开阀离心泵工况(包括离心式混流泵):先启动泵,延迟预定时间后开阀,或泵阀同时开启。
✧开阀轴流泵工况(包括轴流式混流泵):泵阀同时开启,或先开阀至一定角度,再启动泵。
✧开阀水轮机工况:先开启旁通阀平衡压力,再开阀,后开启水轮机。
✧各种工况一般均要求在停机或停电的同时关闭阀门。
本阀电气控制系统均配有就地控制回路和远程联动控制回路。
就地控制回路主要用于现场调试,正常工作时一般均使用远程联动控制回路。
系统动力电源为AC380V,控制电源可以是AC220V、DC220V、DC110V或其他电源等级。
液压控制原理详见(图2),电气控制原理详见(图3)。
9.1 保压功能合上空气开关QF,接通电源,中间继电器KA0自动切换,切断DC24V备用电源。
阀门处于全关位,电源指示灯亮;全关指示灯亮。
此时,万能转换开关SA1在“就地、远程”两位,控制系统保压单元均自动启动,即:压力降至低压力开关设定点KP1,油泵自动启动补压,达高压力开关设定点KP2后停机。
KP1设定为10MPa,KP2设定为14MPa,一般出厂时均已调好。
9.2 就地控制将转换开关SA1旋至“就地”位。
9.2.1 开阀按就地控制箱上开阀按钮SB1,电磁阀YV1、YV2带电换向,压力油进入油缸无杆腔推动活塞,回油经经流量控制阀回油箱,活塞杆带动连杆开阀。
调整开阀时间可通过旋转流量控制阀手轮来实现,其开度变化后可以达到不同的开阀时间以适应实际工况,时间调整围见前表。
9.2.2 关阀按关阀按钮SB2,二电磁阀失电复位,蓄能器的压力油经高压油管进入油缸有杆腔,拉动摇臂关阀。
关阀分为快关、慢关两阶段,通过旋转油缸尾部的快、慢关节流阀可分别予以调节,其调节围见前表。
9.2.3 停止阀门开、闭过程中,按停止按钮SB3,电磁阀YV2带电,YV1失电,阀门停止在任意中间位置。
9.3 远程控制将转换开关SA1旋至“远程”位,远程指示灯亮。
9.3.1 开阀✧先启泵、后开阀中控室启动水泵,水泵控制继电器常开接点KB1闭合,延迟预定时间后,阀门按预定程序自动开启、保压。
将KT1时间调定为零,即可实现泵阀同时启动。
✧先开阀、后启泵按远程开阀按钮SB4,油泵启动,阀门随之开启。
当阀门开启到一定角度,行程开关SQ3压合,SQ3信号发出,中控室启动水泵。
SB4若同时发出启泵信号,也可实现泵阀同时启动。
9.3.2 关阀✧泵阀正常同时关闭水泵停机,电磁阀失电换向,阀门按预定程序关阀。
✧远程紧急关阀按下远程关阀按钮SB5(按下不松开,直至水泵停机),阀门关闭;当关至约75度位置时,行程开关SQ4压合,发出信号,中控室停泵。
9.3.3 联动失电保护一般工况下,机组正常工作时,若阀门控制系统故障失电,阀门自动关闭。
也可按以下式:用户加入备用电源后,在备用电源回路中接入水泵状态点KB1。
若阀门控制回路AC220V电源故障断电,而水泵仍在工作,继电器KA2失电,其常闭接点闭合,备用电源回路接通,两电磁阀带电保持。
只有当水泵停机,控制触点KB1断开时,电磁阀才失电,蝶阀同时关阀。
9.3.4 远程监控控制系统除可接收远程开阀、关阀、停止、水泵状态信号外,还输出各种状态信号供远程DCS 监控,主要有:阀门开度位置信号(0º、15º、75º、90º)、远程状态信号、油泵状态信号、电机过载、开阀超时故障信号、阀门开度4~20mA模拟量信号等;除了阀门状态4~20mA模拟量信号外,其余信号均为无源的干接点开关量信号。
9.4 手动操作关闭电源开关QF。
✧将转换开关SA1旋至“手动”位置。
若蓄能器中还存有足够压力,阀门即自动开启。
若压力不够,摇动手动泵,亦可将阀门打开。
✧✧将转换开关SA1旋离“手动”位置。
若蓄能器中还存有足够压力,阀门即自动关闭。
若压力不够,摇动手动泵,亦可将阀门关闭。
手动功能主要是利用备用电源进行阀门调试,或在特殊情况下的阀门紧急关闭。
其他工况电液控制原理详细说明参看我公司相关产品出厂<安装使用说明书>。
图2 液压原理图1、手动泵2、油泵3、电机4、空气滤清器5、溢流阀6、单向阀(一)7、单向阀(二)8、截止阀9、流量控制阀10、蓄能器(一) 11、蓄能器(二) 12、压力继电器13、压力表14、电磁阀(一) 15、电磁阀(二) 16、插装阀(一) 17、单向阀(三) 18、插装阀(二) 19、油缸图3 电气控制原理图10.吊装及调试维护10.1 吊运运输起吊时不得翻转、倒放;开箱后用吊车运蝶阀,起吊时注意在四个起吊点中选取平衡位置。
大修起吊前,重锤式阀门应将重锤从阀门本体拆下。
吊装过程应注意缓慢、平稳、轻放。
10.2 储存本阀长时间存放时,应放于干燥处,封闭二端通道,在加工面涂上防锈油。
临时停放时可在外墙板位置增加辅助支承以保持平稳。
半年不安装,液压系统需清洗换油。
本阀禁止露天存放。
10.3 安装安装前应核对本阀铭牌参数是否符合使用要求;清洗阀体及蝶板、检查各部位有无损坏现象,各零部件联接螺栓是否紧固。