三片式对焊球阀使用说明书
三片式球阀的结构及工作原理
三片式球阀的结构及工作原理三片式球阀是一种常见的阀门，由球体、阀座和阀体三个主要部件组成。
它具有结构简单、密封性能好、操作方便等特点，广泛应用于石油、化工、冶金、电力等行业。
本文将详细介绍三片式球阀的结构和工作原理。
一、结构三片式球阀由球体、阀座和阀体三部分组成。
球体是阀门的关键部件，通常由不锈钢制成，其内部有一个球孔，通过旋转进行开启和关闭阀门。
阀座是球体的密封面，通常由弹性材料制成，能够与球体完全贴合，确保阀门的密封性能。
阀体是球阀的外壳，承受着阀门的压力，通常由铸铁、不锈钢等材料制成。
二、工作原理三片式球阀的工作原理主要是通过旋转球体来控制介质的流动。
当球体与阀座完全贴合时，阀门处于关闭状态，介质无法通过阀门流动。
当需要开启阀门时，通过手柄或电动装置旋转球体，使其与阀座分离，从而形成一个通道，介质可以顺畅地流过阀门。
当需要关闭阀门时，再次旋转球体使其与阀座贴合，阀门即可完全关闭。
三、工作流程三片式球阀的工作流程主要包括开启、调节和关闭三个阶段。
开启阀门时，将手柄或电动装置旋转到一个特定的角度，使球体与阀座分离，介质可以通过阀门流动。
调节阀门时，通过旋转手柄或电动装置来改变球体与阀座之间的间隙，从而控制介质的流量和压力。
关闭阀门时，将手柄或电动装置再次旋转到原位，使球体与阀座完全贴合，阀门即可完全关闭，介质无法通过阀门流动。
四、优缺点三片式球阀具有以下优点：1. 结构简单，容易制造和维护。
2. 密封性能好，球体与阀座完全贴合，能够有效防止介质泄漏。
3. 操作方便，通过手柄或电动装置即可实现开启和关闭阀门。
4. 适用范围广，可用于各种介质和工况。
然而，三片式球阀也存在一些缺点：1. 流阻较大，球体与阀座之间的间隙会导致介质流动时产生较大的阻力。
2. 安装和维护相对复杂，由于球体和阀座的结构比较特殊，需要一定的技术和经验。
五、应用领域三片式球阀广泛应用于石油、化工、冶金、电力等行业。
具体应用包括：1. 石油行业：用于油气输送管道、储罐出口等。
球阀说明书——精选推荐
球阀说明书摘要....................................................................... I ABSTRACT .................................................................. II 1 绪论 (1) 1.1球阀发展历史 (1)1.2国内外研究现状 (1)1.3本⽂研究的主要内容、⽅法和⽬标 (2)2 球阀的结构设计及校核 (3)2.1球阀的构成、作⽤原理、特点和结构分类 (3)2.1.1球阀的构成 (3)2.1.2球阀的作⽤原理 (3)2.1.3球阀的特点 (3)2.1.4球阀的结构类型 (4)2.2球体的直径确定 (4)2.3球体与阀座之间密封⽐压的确定 (5)2.3.1必需⽐压的计算 (5)2.3.2需⽤⽐压选择 (5)2.3.3设计⽐压的计算 (6)2.4球阀密封⼒的计算 (7)2.5球阀的转矩计算 (8)2.6阀体设计 (9)2.6.1阀体结构形式、连接形式、结构长度和材料的确定 (9)2.6.2阀体壁厚的确定 (10)2.6.3 阀体法兰设计 (10)2.6.4 阀体法兰校核 (11)2.7阀杆的设计和校核 (14)2.7.1 阀杆材料选择 (14)2.7.2 阀杆填料的选择、填料摩擦⼒及摩擦转矩的计算 (15)2.7.3 阀杆强度的计算 (16)2.8阀杆连接件的强度计算 (18)2.9球体的设计和校核 (20)2.10球阀的阀座设计 (21)2.11省⼒机构的设计和校核 (22)2.11.1蜗轮蜗杆的设计 (23)2.11.2蜗轮蜗杆的强度校核 (23)3 ANSYS软件分析 (24)3.1ANSYS软件的应⽤和介绍 (24)3.2模型的导⼊和分析 (26)3.2.1 模型的简化、导⼊和分析准备 (26)3.2.2 模型的材料定义 (27)3.2.3 模型的加载和边界条件的确定 (28)3.2.4 模型的加载后分析结果 (29)3.2.5 ANSYS结果分析 (33)结论 (34)参考⽂献 (35)致谢 (36)摘要本⽂根据已知的球阀设计经验对DN为250mm，设计压⼒为2Mpa的球阀进⾏设计，主要包括了材料选择、结构设计和强度校核等，在结构和材料⽅⾯在满⾜强度的前提下，尽量降低结构的复杂性，以更⼩的消耗、更简单的结构来实现成品的设计优化，同时对球阀的主要部件进⾏应⼒的软件分析。
球阀使用维护说明书
球阀使用维护说明书球阀使用维护说明书1、引言本文档提供了球阀的使用维护说明，详细介绍了球阀的组成部分、安装步骤、操作方法、常见问题及维护要点等内容。
通过阅读本文档，您将了解到如何正确使用和维护球阀，确保其正常运行和延长使用寿命。
2、球阀概述2.1 组成部分：球体、阀座、阀杆、阀盖、密封垫圈等。
2.2 工作原理：球阀通过旋转球体来实现开关控制，当球体转至某一位置时，阀体内流体可以通畅通过，而在其他位置将被阻塞。
3、安装步骤3.1 确认阀门尺寸和型号，选择适合的球阀。
3.2 检查球阀及其附件是否完好，没有损坏和松动。
3.3 在安装前，清理管道内的杂物和污垢，确保管道通畅。
3.4 将球阀正确安装在管道上，使用适当的螺栓和垫圈进行固定。
3.5 确保球阀安装位置正确，操作杆须容易访问。
3.6 使用扳手将球体旋转至适当位置，确保顺畅开关。
4、操作方法4.1 开关球阀：顺时针旋转球体以关闭球阀；逆时针旋转球体以打开球阀。
4.2 调节球阀：逐渐旋转球体以调节流体的流量。
4.3 注意事项：- 操作力应适度，不得过大用力；- 避免频繁开关球阀，以免损坏阀门。
5、常见问题及维护要点5.1 泄漏问题：- 检查阀杆和阀盖之间的密封垫圈，若有磨损或损坏应及时更换；- 确保螺纹连接牢固，如有松动应进行紧固。
5.2 球体卡死：- 清理球阀内的杂物和污垢，保持球体的顺畅运动；- 检查阀杆的润滑情况，如果困难应添加适当的润滑油。
5.3 操作杆无法旋转：- 确保操作杆未被卡住或阻塞，修复或更换卡住的零件；- 检查操作杆的连接情况，如有松动进行紧固。
6、附件本文档未附带附件，请参考球阀产品说明书以获取更多相关资料。
7、法律名词及注释7.1 球阀：一种用于调节流体流量的阀门，通过旋转球体来实现开关和调节。
7.2 球体：阀门内的旋转部分，用于控制流体的通断和调节流量。
7.3 阀杆：球阀上连接球体的部分，通过旋转球体控制流体的通断。
Series WE03 3-Piece Tri-Clamp 钢铁球值说明书
Series WE03 3-Piece Tri-Clamp Stainless Steel Ball ValveSpecifications - Installation and Operating InstructionsBulletin V-WE03The SERIES WE03 incorporates a full port 3-piece tri-clamp SS ball valve for great flow rates with minimal pressure drop. The valve features a blowout proof stem for added safety, reinforced PTFE seats and seals for longer life, and a 316 SS (ASTM CF8M) ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. Limit switches are able to be mounted directly to the valves allowing for remote position indication.The Series WE03 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train.The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve and internally loaded springs return the valve to the closed position. Also available is the SN solenoid valve to electrically switch the air supply pressure between the air supply ports for opening and closing the valve. Actuators are constructed of anodized and epoxy coated aluminum for years of corrosion freeservice.WE03-DHD00WE03-DDA01WE03-DDA01-AA06WE03-DDA01-AA07WE03-DTD01-ABy DwyerVALVE BILL OF MATERIALSVALVE DIMENSIONAL DRAWINGAUTOMATED VALVE DRAWINGSW/ PNEUMATIC ACTUATORW/ ELECTRIC ACTUATORW/ EXPLOSION-PROOF ELECTRIC ACTUATORPNEUMATIC ACTUATORNote: For optimal operation, pneumatic actuators should be run with a supply of clean, lubricated air.Spring Return Actuator OperationAir to PORT 2 (the left hand port) causes the actuator to turn counterclockwise (CCW). Loss of air to PORT 2 causes air to exhaust and the actuator turns clockwise (CW). This is the FAIL CLOSE operation.Double Acting Actuators OperationAir to PORT 2 (the left hand port) causes the actuator to turn counterclockwise (CCW). Air to PORT 1 (the right hand port) causes the actuator to turn clockwise (CW).Pneumatic Actuator MaintenanceRoutine maintenance of pneumatic actuator:• Keep the air supply dry and clean• Keep the actuator surface clean and free from dust• Periodic checks should be done to make sure all fittings are tight• Pneumatic actuators are supplied with lubrication to last the entire life span of the actuator under normal operating conditions.The outer surface of the pneumatic actuator should be clean to avoid friction or corrosion. All fittings and connections should be tight to prevent leaks during operation. Check the bolts mounting the valve to the actuator to make sure they have not come loose during shipping or installation. Make sure the valve and actuator are not rubbing or jamming against other components during operation. The actuator should be inspected annually to make sure all fittings and bolts are tight and nothing has come loose during operation.Disassembling Pneumatic ActuatorsBefore beginning disassembly, ensure that the air supply to the actuator has been disconnected, all accessories have beenremoved, and that the actuator has been disassembled from the valve.1. Loosen the end cap fasteners (23) with a wrench (size varies depending on actuator model). On the spring return actuator, alternate 3 to 5 turns on each fastener until the springs are completely decompressed. Use caution when removing the cap since the springs are under load until the fasteners are fully extended.2. Remove the pinion snap ring (13) with a lock ring tool. The indicator (12) may now be removed.3. Turn the pinion shaft (2) counter clockwise until the pistons are at the full end of travel. Disengage the pistons (15) from the pinion. (Note: Low pressure air--3 to 5 psi MAXIMUM--might be required to force the pistons completely from the body.) Note the position of the pistons before removing them from the actuator body.4. Remove the pinion through the bottom of the actuator. The actuator is now completely disassembled.Be sure the actuator surfaces are free of debris and scratches before reassembling.1. Apply a light film of grease to all O-rings and the pinion before replacing.2. Put the pinion (2) back through the actuator with the flats of the pinion shaft running parallel with the body.3. When reassembling the actuator, make sure that the piston racks are square to the actuator body and returned to their original orientation. (Note: The normal operation of all spring return pneumatic actuators is FAIL CLOSED. To change the orientation to FAIL OPEN, rotate the racks 180º to create a reverse operation.4. When replacing springs in a spring return actuator, ensure that the springs are replaced in their identical position in the end cap from which they were removed. (Note: In some circumstances, you might want to change the standard 80 pound spring set to fit your application and available air pressure.5. Seal the end caps with a petroleum lubricant and bolt to actuator body.6. Check the seal of the actuator by covering seal areas (pinion, end caps) with soapy water and using low pressure air to the actuator to ensure that no bubbles are produced.Pneumatic Actuators Bill of MaterialsReassembling Pneumatic ActuatorsELECTRIC ACTUATORSElectric Installation1. Operate valve manually and place in the open position.2. Remove any mechanical stops the valve might have. (DO NOT REMOVE ANY PARTS NECESSARY FOR THE PROPER OPERATION OF THE VALVE, SUCH AS THE PACKING GLAND, PACKING NUT, ETC.)3. Ensure that the actuator output shaft and valve stem are aligned properly. If they are not, operate the valve manually until they are correct.4. Remove actuator cover.5. Bring power to the actuator. CAUTION: Make sure power is OFF at the main box.6. Wire the actuator per the diagram attached to the inside of the cover. Special actuators (those with positioner boards, etc.) will have diagrams enclosed inside the cover.7. Securely tighten bolts used to mount the actuator to a mounting bracket or directly to the valve mounting pad if it is ISO5211 compliant.8. Cycle the unit several times and check the open and closed positions of the valve. Cams are pre-adjusted at the factory; due to the variety of valve designs and types however, slight adjustments might be required.9. Replace cover and tighten screws.To Set The Open Position1. Cycle the valve to the open position by applying power to terminals. The top cam and switch control this position. In the open position, the set screw in the top cam will be accessible.2. If the valve is not open completely:A. Slightly loosen the set screw on the top cam.B. Rotate the cam clockwise (CW) by hand until the switch makes contact. Contact is made when a slight click can be heard. By making incremental CW movements of the top cam, the valve can be positioned precisely in the desired position.C. When the top cam is set, tighten the set screw securely.3. If the valve opens too far:A. Apply power to terminals. This will begin to rotate valve CW. When valve is fully open and in the exact position desired, remove power from actuator.B. Loosen the set screw in the top cam.C. Rotate the top cam counterclockwise (CCW) until the switch arm drops off the round portion of the cam onto the flat section. A slight click can be heard as the switch changes state.D. Continue applying power to terminals until valve is in the desired position.To Set The Closed Position1. Apply power to terminals to move the valve toward the closed position. The bottom cam and switch control the closed position. In the closed position, the set screw in the bottom cam will be accessible.2. If the valve is not closed completely:A. Slightly loosen the set screw on the bottom cam.B. Rotate the cam counterclockwise (CCW) by hand until the switch makes contact. Contact is made when a slight click can be heard. By making incremental CCW movements of the bottom cam, the valve can be positioned precisely in the desired position.C. When the top cam is set, tighten the set screw securely.3. If the valve closes too far:A. Apply power to terminals. This will begin to rotate valve CCW. Whenvalve is fully closed and in the exact position desired, remove power from actuator.B. Loosen the set screw in the top cam.C. Rotate the top cam clockwise (CW) until the switch arm drops off the round portion of the cam onto the flat section. A slight click can be heard as the switch is no longer making contact with the round part of the cam.D. Continue applying power to terminals until valve is in the desired position.Electric Actuators Wiring Diagram: ACT-TI & ACT-MIWiring Diagrams forTI01-A to TI02-A: 110 VAC, TI01-B to TI02-B: 220 VAC, TI01-C to TI02-C: 24 VACHOTALVE ALVEWiring Diagrams for TI01-D to TI02-D: 24 VDCOPERATION:POWER TO 1 & 2 FOR CCW ROTATION POWER TO 3 & 4 FOR CW ROTATION TERMINALS 5 & 6 FOR FIELD LIGHT INDICATION CONNECTIONSW.#1 SW.#2SWITCH #1 OPEN SWITCH SWITCH #2 CLOSE SWITCHWiring Diagrams forMI01-A to MI02-A: 110 VAC, MI01-B to MI02-B: 220 VAC, MI01-C to MI02-C: 24 VACSW. 1, CLOSESW. 2, OPEN .SW. 3, CLOSE SW. 4, OPEN Wiring Diagrams forMI01-D to MI02-D: 24 VDCSW. 1, CLOSESW. 2, OPEN .SW. 3, CLOSE SW. 4, OPENElectric Actuators Wiring Diagram: ACT-TD & ACT-MDWiring Diagrams forTD01-A to TD02-A: 110 VAC, TD01-B to TD02-B: 220 VACTD01-C to TD02-C: 24 VACWiring Diagrams forTD01-D to TD02-D: 24 VDCWiring Diagrams forMD01-A to MD02-A: 110 VAC, MD01-B to MD02-B: 220 VAC,MD01-C to MD02-C: 24 VACNote: To speed up installation of the control wires to the ACT-MDXX modulating actuator, it is recommended to remove the control module from the actuator. The control module can be removed by removing the two mounting screws on the left and right of the control module. Install the control wires to the correct terminal points and then reinstall the control module.Electric Actuator MaintenanceOnce the actuator has been properly installed, it requires no maintenance. The gear train has been lubricated and in most cases will never be opened. Duty Cycle Definition“Duty Cycle” means the starting frequency.Fomula: Running Time ÷ (Running Time + Rest Time) x 100% = duty cycle –> Rest Time = Running Time x (1 - duty cycle) ÷ duty cycleFor example: The running time is 15 seconds30% duty cycle 15 x [(1 - 30%) / 30%] = 35 –> The rest time will be 35 seconds 75% duty cycle 15 x [(1 - 75%) / 75%] = 5 –> The rest time will be 5 seconds If the duty cycle is higher, the rest time will be shortened, which means the starting frequency will be higher.Thermal OverloadAll actuators are equipped with thermal overload protection to guard the motor against damage due to overheating.Mechanical OverloadAll actuators are designed to withstand stall conditions. It is not recommended to subject the unit to repeated stall conditions.Explosion-Proof Electric Actuators1. DO NOT under any circumstances remove the cover of the actuator while in a hazardous location. Removal of the coverwhile in a hazardous location could cause ignition of hazardous atmospheres.2. DO NOT under any circumstances use an explosion-proof electric actuator in a hazardous location that does not meet the specifications for which the actuator was designed.3. Always verify that all electrical circuits are de-energized before opening the actuator.4. Always mount and cycle test the actuator on the valve in a non-hazardous location.5. When removing the cover, care must be taken not to scratch, scar of deform the flame path of the cover and base of the actuator, since this will negate the NEMA rating of the enclosure.6. When replacing the cover, take care that the gasket is in place to assure proper clearance after the cover is secured.7. All electrical connections must be in accordance with the specifications for which the unit is being used.8. Should the unit ever require maintenance, remove from the hazardous location before attempting to work on the unit.If the actuator is in a critical application, it is advisable to have a standby unit in stock.Electric Actuators Performance Rating MAINTENANCE/REPAIRUpon final installation of the Series WE, only routine maintenance is required. The Series WE is not field serviceable and should be returned if repair is needed. Field repair should not be attempted and may void warranty.WARRANTY/RETURNRefer to “Terms and Conditions of Sale” in our catalog and on our website. Contact customer service to receive a Return Goods Authorization number before shipping the product back for repair. Be sure to include a brief description of the problem plus any additional application notes10©Copyright 2015 Dwyer Instruments, Inc.Printed in U.S.A. 10/15FR# 444173-00 Rev. 9。
三片式焊接球阀尺寸规格
三片式焊接球阀尺寸规格
【最新版】
目录
1.三片式焊接球阀概述
2.三片式焊接球阀的尺寸规格
3.三片式焊接球阀的应用领域
4.市场上三片式焊接球阀的价格概况
正文
一、三片式焊接球阀概述
三片式焊接球阀是一种常用的球阀类型，其结构主要由阀体、阀杆、阀座和密封件组成。
阀体可分为整体式、二段式、三段式，根据不同的应用场景选择适合的结构。
阀座采用弹性密封结构，密封可靠，启闭轻松。
阀杆采用有倒密封的下装式结构，阀腔异常升压时，阀杆不会被冲击，保证了阀门的安全性能。
二、三片式焊接球阀的尺寸规格
三片式焊接球阀的尺寸规格主要包括阀门的通径、长度、高度等参数。
这些参数决定了阀门的流量、压力等性能指标。
在选择阀门时，需要根据实际工况选择合适的尺寸规格。
三、三片式焊接球阀的应用领域
三片式焊接球阀广泛应用于石化、冶金、电力等工业部门。
其主要作用是切断或接通介质流动，以实现对管路系统的控制。
由于其结构简单、密封性能好、操作方便等优点，在各个领域都有广泛的应用。
四、市场上三片式焊接球阀的价格概况
三片式焊接球阀的价格受阀门材质、尺寸规格、执行器类型等因素影
响。
在市场上，不同品牌和型号的三片式焊接球阀价格差异较大。
一般来说，质量较好的三片式焊接球阀价格相对较高。
球阀—产品使用说明书
球阀—产品使用说明书(总8页) -CAL-FENGHAI.-(YICAI)-Company One1-CAL-本页仅作为文档封面，使用请直接删除Ball valves球阀使用说明书Ball Valve Operating Manual浙江石化阀门有限公司Zhejiang Petrochemical Valve Co., Ltd.二O一一年 Year 2011一用途Application球阀是一种管线阀门产品，用于接通或截断管路中的介质。
一般是处于全开或全关状态，在微开状态下可作流量的调节使用。
广泛适用于工况条件下水、气、油品等介质的各种管路中。
Ball valve is pipeline valve, used for connecting or cutting off medium in the pipelines.Normally it is at the state of opening or closing. And it could function as regulating the flow when it is at the state of slightly open. It is used on the pipeline such as water, gas, oil etc.二性能规范 Performance Specification压力等级： Class150； Class300； Class600；Pressure: Class150； Class300； Class600；公称尺寸：NPS 2 ～NPS24；Nominal Size: NPS 2 ～NPS24阀体材料： ASTM A216 WCB； ASTM A351 CF8；Body Material:ASTM A216 WCB；ASTM A351 CF8；产品的设计、制造按API6D的规定；检查试验按API6D的规定；法兰连接尺寸按ASME 的规定；结构长度按API6D的规定；Designed and manufactured according to API6D; Inspected and tested according to API6D;Flange ends according to ASME ; Face to face according to API 6D适用介质：水、蒸汽、油品等。
三片式球阀安装方法
三片式球阀安装方法
宝子们，今天咱们来唠唠三片式球阀咋安装哈。
这三片式球阀安装前，咱得先把安装的地儿收拾干净，可不能乱糟糟的。
就像咱们收拾屋子一样，得有个整洁的环境才好干活。
要把那些杂物啥的都清走，给球阀找个舒舒服服的地儿安家。
接下来就开始安装啦。
先把管道接口的地方处理好，要保证管道接口是平的、光滑的，就像咱脸得洗干净才能擦香香一样。
要是接口不平，那球阀和管道连接就不紧密，容易漏水啥的。
把球阀的两片阀体和中间的球芯先简单组合一下，就像拼积木一样，先大概对好位置。
然后呢，在管道接口和球阀连接的地方缠上密封胶带，这密封胶带就像是给它们之间加了个小护盾，防止漏水。
缠的时候要缠得均匀，可不能一块厚一块薄的，不然也容易出问题呢。
再把球阀慢慢拧到管道接口上，拧的时候要小心点，可别太用力把螺纹给拧坏了。
就像给小瓶子盖盖子，要轻轻用力，慢慢拧紧。
拧到合适的程度，就是那种感觉很紧实，但又不会太吃力的状态。
安装好之后呢，咱们要测试一下。
打开球阀，看看水或者其他介质是不是能顺畅地通过，就像试试新鞋子走路舒不舒服一样。
如果发现有漏水的地方，那可不能不管，要赶紧检查是哪里没密封好，是密封胶带没缠好，还是球阀没拧紧，找到问题就赶紧解决。
宝子们，三片式球阀安装其实不难，只要咱们细心一点，按照这个简单的方法来，就能把它安装得妥妥当当的啦。
Series 3PBV自动三路球形阀门-规范和运行说明手册V-16说明书
®Position A:Position B:Position C:Position D:Page 3XI. TROUBLESHOOTINGSYMPTOMActuator does not respond to control signal Actuator will not open and/or close completelyValve oscillatesActuator motor runs but output shaft does not rotateSOLUTION•Turn on Power•Check wiring diagram; re-wire•Bring correct supplyto actuator•Allow motor to cool;resets automatically•Remove actuator;remount after 90°turn •Set cams per instructions •Install correct unit •Remove stops •Torque of valve too high•Install brake •Adjust brake; tightenscrew•Contact factoryPROBLEM•Power is not on •Actuator wired incorrectly •Incorrect voltage •Thermal Overload •Actuator and Valve in opposite positions when actuator installed •Travel limit switch set incorrectly •Valve torque too high •Mechanical stops not removed when installing actuator•Torque of valve too high•Actuator without brake installed on butterfly valve•Motor brake misadjusted •Gear damaged/sheared pinI. BASIC INSTALLATION1. Operate valve manually and place in the open position. (NOTE: ALL ELECTRIC ACTUATORS ARE SHIPPED IN THE OPEN POSITION.)2. Remove any mechanical stops the valve might have. (DO NOT REMOVE ANY PARTS NECESSARY FOR THE PROPER OPERATION OF THE VALVE, SUCH AS THE PACKING G LAND, PACKING NUT,ETC.)3. Ensure that the actuator output shaft and valve stem are aligned properly. If they are not, operate the valve manually until they are correct.4. Mount actuator to valve. Do not tighten nuts and bolts at this time.5. Remove actuator cover.6. Bring power to the actuator. CAUTION: Make sure power is OFF at the main box.7. Wire the actuator per the diagram attached to the inside of the cover. Special actuators (those with positioner boards, etc.) will have diagrams enclosed inside the cover.8. Securely tighten bolts used to mount the actuator to a mounting bracket or directly to the valve mounting pad if it is ISO5211 compliant.9. Cycle the unit several times and check the open and closed positions of the valve. Cams are pre-adjusted at the factory; due to the variety of valve designs and types, however, slight adjustments might be required. (SEE II and III).10. Replace cover and tighten screws.II. TO SET THE OPEN POSITION1. Cycle the valve to the open position by applying power to terminals #1 and #2. The top cam and switch control this position. In the open position, the set screw in the top cam will be accessible.2. If the valve is not open completely:A. Slightly loosen the 8-32 x 1/4” set screw on the top cam.B. Rotate the cam clockwise (CW) by hand until the switch makes contact. Contact is made when a slight click can be heard. By making incremental CW movements of the top cam, the valve can be positioned precisely in the desired position.C. When the top cam is set, tighten the set screw securely.3. If the valve opens too far:A. Apply power to terminals #1 and #3. This will begin to rotate valve CW. When valve is full open and in the exact position desired, remove power from actuator.B. Loosen the set screw in the top cam.C. Rotate the top cam counterclockwise (CCW) until the switch arm drops off the round portion of the cam onto the flat section. A slight click can be heard as the switch changes state.D. Continue applying power to terminals #1 and #3 until valve is in the desired position.III. TO SET THE CLOSED POSITION1. Apply power to terminals #1 and #3 to move the valve toward the closed position. The bottom cam and switch control the closed position. In the closed position, the set screw in the bottom cam will be accessible.2. If the valve is not closed completely:A. Slightly loosen the 8-32 x 1/4” set screw on the bottom cam.B. Rotate the cam counter-clockwise (CCW) by hand until the switch makes contact. Contact is made when a slight click can be heard. By making incremental CCW move-ments of the bottom cam, the valve can be positioned pre-cisely in the desired position.C. When the top cam is set, tighten the set screw securely.3. If the valve closes too far:A. Apply power to terminals #1 and #2. This will begin to rotate valve CCW. When valve is fully closed and in the exact position desired, remove power from actuator.B. Loosen the set screw in the top cam.C. Rotate the top cam clockwise (CW) until the switch arm drops off the round portion of the cam onto the flat section.A slight click can be heard as the switch is no longer mak-ing contact with the round part of the cam.D. Continue applying power to terminals #1 and #2 until valve is in the desired position.IV . MAINTENANCEOnce the actuator has been properly installed, it requires no maintenance. The gear train has been permanently lubricated and in most cases will never be disturbed. In the event it becomes necessary to open the gear box for any reason, however, Shell Darina ®#2 grease is recommended for re-lubricating.ELECTRIC ACTUATORV . DUTY CYCLEMost standard electric actuators are rated for 25% duty cycle at 100%ambient temperature at the rated torque.VI. THERMAL OVERLOADAll actuators are equipped with thermal overload protection to guard the motor against damage due to overheating.VII. MECHANICAL OVERLOADAll actuators are designed to withstand stall conditions. It is not recommended to subject the unit to repeated stall conditions.VIII. SPARE PARTSWhen ordering parts, please specify:A. Model #B. Serial #C. Part Description Recommended spare parts include:A. Standard actuator: set of cams and switches.B. Actuators w/positioner: set of cams and switches; 1K potentiometer; valve positioner board.IX. NEMA 7 ELECTRIC ACTUATORSIn general, operation and maintenance of a NEMA 7 electric actuator is no different that of a NEMA 4 actuator. However, some precautions must be followed:1. DO NOT under any circumstances remove the cover of the actuator while in a hazardous location. Removal of the cover while in a hazardous location could cause ignition of hazardous atmospheres.2. DO NOT under any circumstances use a NEMA 7 electric actuator in a hazardous location that does not meet the specifications for which the actuator was designed.3. Always mount and cycle test the actuator on the valve in a non-hazardous location.4. When removing the cover, care must be taken not to scratch, scar of deform the flame path of the cover and base of the actuator, since this will negate the NEMA rating of the enclosure.5. When replacing the cover on actuators rated for both NEMA 4 & 7,take care that the gasket is in place to assure proper clearance after the cover is secured. After the cover screws are tightened, the clearance between the cover and the base should be checked. A .002” thick by 1/2” wide feeler gauge is used for this; it must not enter between the two mating faces more than .125".6. All electrical connections must be in accordance with the specifications for which the unit is being used.7. Should the unit ever require maintenance, remove from the hazardous location before attempting to work on the unit.If the actuator is in a critical application, it is advisable to have a standby unit in stock.Darina ®is a registered trademark of Shell Oil Company。
三片式球阀-Q11F三片式球阀
球阀>>三片式球阀>>三片式球阀产品详细信息球阀系列价格供用户或设计院工程项目做预算一、阀门的选型步骤1.明确阀门在设备或装置中的用途，确定阀门的工作条件：适用介质、工作压力、工作温度等等。
2.确定与阀门连接管道的公称通径和连接方式：法兰、螺纹、焊接等。
3.确定操作阀门的方式：手动、电动、电磁、气动或液动、电气联动或电液联动等。
4.根据管线输送的介质、工作压力、工作温度确定所选阀门的壳体和内件的材料：灰铸铁、可锻铸铁、球墨铸铁、碳素钢、合金钢、不锈耐酸钢、铜合金等。
5.确定阀门的型式：闸阀、截止阀、球阀、蝶阀、节流阀、安全阀、减压阀、蒸汽疏水阀、等。
6.确定阀门的参数：对于自动阀门，根据不同需要先确定允许流阻、排放能力、背压等，再确定管道的公称通径和阀座孔的直径。
7.确定所选用阀门的几何参数：结构长度、法兰连接形式及尺寸、开启和关闭后阀门高度方向的尺寸、连接的螺栓孔尺寸和数量、整个阀门外型尺寸等。
8.利用现有的资料：阀门产品目录、阀门产品样本等选型适当的阀门产品。
二、阀门的选型依据1.所选用阀门的用途、使用工况条件和操纵控制方式。
2.工作介质的性质：工作压力、工作温度、腐蚀性能，是否含有固体颗粒，介质是否有毒，是否是易燃、易爆介质，介质的黏度等等。
3.对阀门流体特性的要求：流阻、排放能力、流量特性、密封等级等等。
4.安装尺寸和外形尺寸要求：公称通径、与管道的连接方式和连接尺寸、外形尺寸或重量限制等。
⑤对阀门产品的可靠性、使用寿命和电动装置的防爆性能等的附加要求。
（在选定参数时应注意：如果阀门要用于控制目的，必须确定如下额外参数：操作方法、最大和最小流量要求、正常流动的压力降、关闭时的压力降、阀门的最大和最小进口压力。
）根据上述选型阀门的依据和步骤，合理、正确地选型阀门时还必须对各种类型阀门的内部结构进行详细了解，以便能对优先选用的阀门做出正确的抉择。
管道的最终控制是阀门。
气动球阀安装使用指导
气动球阀安装使用指导说明一、气动球阀简介SS-8-5FF-RG-K-SP001三片式气动球阀，由电磁阀、执行机构和三片式球阀以及两个转换接头组装而成。
见图1。
图1 气动球阀组成该球阀的技术规格如下：三片式球阀CLASS 800，CF8M BODY/TRIM，R-PTFE SEATS，GRAPHITE SEALS，FIRE SAFE PER API 607&608。
每个阀门都包含有两个型号为SS-8-1FMA (1/2" 内螺纹转外螺纹NPT转换接头) 以延长阀门长度。
RA TING：1920PSI@100℉。
执行机构PNEUMA TIC DOUBLE ACTING (80 PSI AIR)电磁阀SINGLE SOLENOID/SPRING RETURN, NAMUR MOUNT 4 WAY 316 V ALVE, SOLENOID EXHAUST DUST FILTER, AND ATEX FLAMEPROOF EEx D IIC, 24VDC HAZARDOUS LOCA TION SOLENOID OPERA TOR.二、安装方法工艺管线连接气动球阀的连接端口为1/2＂FNPT，直接与管子的1/2＂MNPT连接。
电磁阀连接气源电磁阀为VERSA品牌的防爆电磁阀，作用方式是2位5通直动式弹簧复位。
其气路的示意图如下：图2 电磁阀气路示意图图2中，端口EA/3,IN/1,EB/5,A/2和B/4是电磁阀的5个通孔（通孔A/2和B/4在现场并未看到），IN/1口为进气口，A/2和B/4口为工作口，连接执行机构的进气口，EA/3, EB/5分别为A/2和B/4的气体排放口，这就是2位5通中所谓的5通。
2位是指左右两个方块中所示的两种状态。
图2中，左侧所示的气路状态为IN/1端口连接气源，A/2口为执行机构供气，执行机构动作，B/4口的气体则由EB/5口排出，EA/3口处于截止状态，在这里我们把这种状态称为状态1。
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三片式对焊球阀使用说明书
三片式对焊球阀是一种常用的阀门，广泛应用于石油、化工、天然气、制药、食品等行业。
本文将为大家介绍三片式对焊球阀的使用说明书。
一、产品概述
三片式对焊球阀是一种球形阀门，由球体、阀座、阀杆、手柄等部件
组成。
它的特点是结构简单、密封性好、操作方便、使用寿命长等。
二、安装与使用
1.安装前应检查阀门的型号、规格、材质是否符合要求，阀门的密封面是否完好无损。
2.安装时应注意阀门的流向，阀门的箭头应指向流体的方向。
3.阀门的安装应符合相关标准和规范，阀门的法兰应与管道法兰连接，紧固螺栓应均匀拧紧。
4.阀门的操作应轻便、灵活，不得用力过猛，以免损坏阀门。
5.阀门的密封性能应定期检查，如发现泄漏现象应及时处理。
三、维护与保养
1.阀门的维护保养应按照相关标准和规范进行，定期检查阀门的密封性能、操作性能、外观等。
2.阀门的密封面应保持清洁，不得有杂质和污物，以免影响密封性能。
3.阀门的操作部件应保持润滑，定期加注润滑油。
4.阀门的存放应避免阳光直射、雨淋、腐蚀性气体等，防止阀门受损。
四、注意事项
1.阀门的使用压力应符合阀门的额定压力范围，不得超过阀门的承受能力。
2.阀门的使用温度应符合阀门的额定温度范围，不得超过阀门的承受能力。
3.阀门的操作应由专业人员进行，不得随意更改阀门的结构和部件。
4.阀门的维护保养应按照相关标准和规范进行，不得随意更换阀门的部件。
5.阀门的存放应避免阳光直射、雨淋、腐蚀性气体等，防止阀门受损。
总之，三片式对焊球阀是一种常用的阀门，使用前应仔细阅读使用说明书，按照相关标准和规范进行安装、使用、维护和保养，以保证阀门的正常运行和使用寿命。