[最新]美国volk球阀简介

公司简介深圳市华明思科技有限公司是一家专业从事仪器仪表、检测设备及电力行业产品销售和技术服务的高科技企业。

公司拥有一支高效率、高素质的人才队伍，拥有一套完善的销售服务体系，详尽忠实的售前技术咨询，简洁、迅速的销售过程和完善的售后服务体系，各部门各司其职，相对独立又协调合作。

紧追最新科技，掌握最新动态，“优质、高效”是技术部门与销售部门的追求目标。

良好的人才储备，为公司提高技术及市场的竞争力提供了有效保障，为公司的长远发展提供源动力。

深圳市华明思科技有限公司是多家国际著名的设备生产厂家在国内的总代理。

本公司代理英国、法国、美国、加拿大、日本、德国和瑞士等国家的滤油机、阀门、水泵等产品；在国内电力市场都有良好的销售市场和口碑。

部分主营产品如下：A.真空滤油机：法国Arras-MaxeiB.阀门：德国KSB ，英国Hopkinsons，加拿大ENCORDIA/VELAN，美国VTI/VOLK/CCI/PACIFICC. 电动执行机构：法国Bernard，德国AUMAD. 开关及备件：美国GE，德国Siemens，美国SOR，瑞士ABB，法国AlstomE. 潜水泵：日本E.I.M，美国FlowserverF. 变送器：美国Honeywell/RosemountG. 电气仪表：日本Hioki，奥地利Omicron，瑞典Programma，美国AVOH．核辐射监测：美国CanberraI. 油化分析：美国Thermo，英国Stanhope-SetaJ. SF6气体回收装置：德国DiloK. 振动监测系统：美国BentlyL．声波吹灰器：瑞典Kockum SonicsM. 搅拌器：美国Sharpe，澳大利亚Sardik我们认为：贸易是一项服务。

我们致力于为客户提供专业、高效的贸易服务，为国内外企业架起一座贸易与物流的桥梁。

我们坚信：信誉是长期合作的基础。

我们致力于与客户建立长期、互信的贸易合作关系，与贸易伙伴共同成长，在成长中壮大，在壮大中共赢！业绩表一、脱硝行业（瑞典KockumSonics AB声波吹灰器）业绩二、脱硫行业（美国SHARPE搅拌器和澳大利亚SARDIK搅拌器）业绩表三、加拿大科迪ENCORDIA阀门业绩四、法国Arras-Maxei滤油机业绩五、其他产品业绩。

德国兹韦克德国ZWICK德国制造的顶级三偏心阀门生产这种阀门需要专有的知识和技术以及高精度的机械加工工艺。

通过近20年的研究开发和生产，德国茨维克阀门公司保证其生产的TRI-CON系列三偏心蝶阀完全满足或超过各种工业标准的要求。

德国茨维克阀门公司的质量管理体系通过了ISO9001认证。

密封部件包含多层次密封结构的密封环和固体的阀座，它们均使用不锈钢材料加工生产。

茨维克顶级三偏心蝶阀TRI-CON系列如今已成为世界上应用最为广泛的蝶阀之一。

单法兰阀体（mono flanged body）符合API609和DIN EN 558标准；双法兰阀体符合ISO5752，B16.10和DIN EN 558标准；焊接式连接阀体也属于标准供货范围。

茨维克三偏心蝶阀的质量和顶级的性能被大量要求严苛的工业应用所证明，从氧气到气体排放，从低温应用到过热蒸汽，还有大量的化工过程控制。

茨维克三偏心蝶阀被大量地应用在石油、化工、电力、冶金、空分等领域的过程控制并提供完美的流体控制特性。

茨维克特殊设计的密封系统消除了蝶阀的常见的大的开启扭矩，大大提高了阀门的寿命和可靠性。

茨维克三偏心阀门特点：中心自定位的阀板茨维克中心自定位蝶板的独特设计保证固定在蝶板上的密封环同阀座间的完美结合。

由于温度变化导致的热膨冷缩，进而引起的阀板的抱死、卡死等将不会出现。

扭矩传递通过键销传递阀门的蝶板是通过键销可浮动地安装在阀杆上的，不像其它厂家是将蝶板用销钉固定在阀杆上。

优点是扭矩传递的均匀性，而不会发生销钉折断的现象。

完美的密封环和蝶板设计坚固的蝶板连同其椭圆形的支撑表面为层叠式密封环提供了最好的支撑和固定。

特殊精加工的密封环保证了无气泡级的另泄漏。

支撑式轴承轴套对轴承的完美的定位减小了阀杆的弯曲。

这保证即便在最大压差下也可实现双向的零泄漏密封。

基本特点：• 真正的三偏心设计• 金属密封压力等级符合ANSI 150/300/600/900/1500• DIN PN 10/25/40/64/100/160/250• 全部双向密封，符合API和DIN EN 558零泄露• 温度范围-320℉至+1022℉（-196℃至+550℃）VanessaHOBBS VALVEHobbs蝶阀英国Hobbs Valve在三偏心补偿蝶阀领域已有50多年的设计和制造经验，Hobbs 蝶阀主要应用于石油天然气，化工，造船和电厂领域。

COMPANY PROFILEWith their headquarters and manufacturing base in Houston, Texas, USA, VOLK FLOW CONTROLS, INC. is a proven lead-ing manufacturer of valves for all industries. Valves such as soft seated ball and butterfly valves, plug valves, gate valves, globe valves, check valves, control valves together with severe ser-vice metal seated zero leakage ball and butterfly valves and severe service control valves are available in all types, sizes, materials, pressure classes and automation.In addition to valves, VOLK FLOW CONTROLS, INC. also of-fers the GT (GIANT TORK) complete range of electric and pneu-matic actuators suitable for all types of linear and quarter turn valves.VOLK FLOW CONTROLS, INC. is a major manufacturer and supplier of valves and actuators to the Power, Oil & Gas, Refining, Petrochemical, Chemical, Mining, Marine, Metals, Aerospace Industries among others with installations in most countries of the world.All VOLK FLOW CONTROLS, INC. products are designed, en-gineered and manufactured by dedicated and experienced in-dustry engineers to provide safe, reliable, dependable and af-fordable valves and actuators, actuators and solutions.All VOLK FLOW CONTROLS, INC. products are tracked in the field using our database to monitor performance and service life. Together with continual feedback from our customers from valves operating in their Plants, and our high manufacturing, rigorous testing and Quality Control procedures, VOLK FLOW CONTROLS, INC. guarantees long service life with less maintenance.Bubble-tight and Zero-leakage valves are guaranteed for both high and low temperatures and pressure.VOLK FLOW CONTROLS, INC. provides customers with affordable, dependable and reliable solutions. RANGE OF APPLICATIONS VOLK metal seated ball valves are used when bubble tight shut off, zero leakage is required for one or all of:High temperatureHigh pressureErosive fluidAbrasive fluidSolid laden fluidFast operation from Open to CloseFire Safe designTYPICAL APPLICATIONAs the flagship of VOLK FLOW CONTROLS, INC., the Zero Leakage Metal Seated Ball Valves are widely used in power plants where tight shutoff is needed under high temperature and high pressure operations and are the best choice to replace the old type globe valve. For supercritical units, special valves with F91 materials providing Zero Leakage operations are used.At present, over 50,000 VOLK Valves are operating safely for drains, vents and blow down etc., in more than 500 power plants.2MISSON STATEMENTPROVIDE TOP QUALITY PRODUCTS USING EFFECTIVE QA AND MANAGEMENT SYSTMES AND PROCEDURES PROVIDE THE VERY LA TEST TECHNOLOGY BASED ON RELIABILITY AND PERFORMANCE FROM THE INSTALLED BASE PROVIDE THE VERY BEST IN INDUSTRY AFTER SALES SERVICE AND SUPPORT TO THE CUSTOMER BASEIn Power Plant processes, high temperature, high pressure andother severe conditions coexist, therefore, the use of zeroleakage, bubble tight valves is very important.Regardless whether it is for draining water, disposing of waste,or disposing of steam, having a valve that leaks translates intohuge losses for any Power Plant. VOLK’s high quality steamcontrol products are not only used to achieve zero leakage, butalso to prevent a Power Plant from the inconvenience of leak-age problems. Internal leakage translates into the unnecessaryloss of money and time; in addition, external leakage threatensthe safety environment of the factory.VOLK VALVES IN POWER PLANTSVOLK V13VOLK metal-seated hard coated ball valves series completelysatisfies the demands and requirements of any Power Plant. Inall severe service operations, VOLK valves provide outstandingperformance with ZERO LEAKAGE.VOLK’s ZERO LEAKAGE GUARANTEE applies to both inter-nal and external leakage.VOLK valves perform with little to no maintenance, thus reduc-ing the cost of Plant operation. VOLK valves are all the user needs to completely solve their valve-related performance problems. VOLK get it right, the first time, every time.VOLK V2VOLK V3QUALITYVOLK’s complete in-house machining, coating, assembly and testing along with material traceability and extensive quality procedures ensure customers a top quality product at a very competitive price. VOLK ball valves are designed according to the highest standards of the valve industry, using the best raw materials for the service required. With over 30,000 square feet facility, and over 26 state of the art CNC machines and more than thirty years of valve experience, VOLK is known for maintaining high quality standards and meeting the stringent demands of the power industry.VOLK ball valves can be used in every application where anon-off valve is needed. A traditional globe valve of the samedimensions in comparison has a lower C V which means lessfluids flow through the valve per second. In a Power Plant,high temperature, high pressure work operations seriously testany valve. In such situations, VOLK ball valves provideexcellent performance for Power Plants with zero leakage.VOLK ball valve’s design satisfies the Power Plant’s require-ment for a long-term usage, zero maintenance, zero leakage VOLK VALVES IN OTHER INDUSTRIESHydrocarbon refining, Petrochemical, Mining, Marine, Pulp & Paper, Aerospace, Metals and other industries.The design, special hard coatings and a seat which is protected and therefore not exposed to erosive and abrasive fluids complete with tight shut off, make the VOLK zero leakage metal seated ball valve the ideal solution for low maintenance, trouble free perfor-mance and long life in oil, gas, high pressure pipelines, furnace coker units, catalyst and cracking units, HDPE, HPPE, mining,metal leaching, smelting and other difficult and problematic applications. All VOLK valves are designed, manufactured, assembled and tested in accordance with industry standards meeting all ASME, ANSI and API standards.THE APPLICATION OF VOLK VALVES IN POWER GENERATION 4valve.VOLK ball valves can greatly reduce the cost of Plant operations, making VOLK the most specified valve among its users. In main steam drainage, disposing of boiler waste, feed pump recycle shut-off and other applications, VOLK ball valve has continuously exhibited excellent performance. VOLK valves are used on new Power Plant Projects and VOLK ball valves are used to replace existing leaking valves.ANSI Class: 900 LB - 4500 LBSizes: 1 - 4End Conn.: BW, RF, SW1311,121098645VOLK V1 One-piece Forged Steel Metal Seated Ball ValvesMaterials57321Application:1. Zero LeakageVOLK FLOW CONTROLS, INC. guarantees Zero Leakage.2. One-piece Forged Steel DesignThe design is one piece and has no body or yoke joints therebyeliminating leakage.3. Double Stem Blow out ProtectionA special designed gland bushing ensures the correct alignmentof stem and at the same time prevents loading the stem to thepoint where it could push the ball through the seat.4. Reliable packing gland design and the use of belleville springsprovide long lasting, maintenance-free, stem packing seal andtightness.5. Isolated Body CavityThe ball and seat are in full constant contact, isolating the bodycavity from flow to prevent build-up of solids6. Quarter Turn ValveLess torque is required to operate the valve due to a top andbottom fully guided stem and life-lubricated thrust bearing whichreduces torque. It’s quarter turn operation and zero leakage makethis valve ideal for Emergency Shut Down applications.7. Locking Device The locking device prevents mis-operation and ensures that the valve opens and closes at the cone position.8. Application of HVOF Coatings The ball and seat are chromium or tungsten carbide impreg-nated by HVOF coating techniques with surface hardness of Rc 68-72 and are mate-lapped to a very high RMS finish (0.05 mi-cro meters RMs), providing Zero Leakage, and long, mainte-nance free service life.9. Inconel 718 Belleville Spring The Belleville Spring maintains tight constant contact between seats and ball, therefore protecting seats in an open and closed position and allowing valve to seal bubble tight under both high and low pressure operations.10. Belleville Spring Guide Sleeve In case of incorrect installation or reverse flow pressure, the design prevents the ball and the upstream seat from blowing out.FeaturesMain feed water pipeline drainMain steam pipeline drainInner Cylinder drainOuter Cylinder drainReheat Connecting pipe drainReheater inlet drainReheater desalt drain Primary economizer recirculation flow element Primary main feed water flow element Main steam valve inlet pressure (right)Reheat steam pressure (left, right)Regulating stage outlet pressure Superheater secondary desalt pipeline exhaustion Economizer vent6VOLK V1BW SWVOLK V1 OVERALL DIMENSIONSANSI CLASS 900# - 3200#ANSI CLASS 3500# - 4500#* For product with special size or class, please consult with the factory.7VOLK V2 Metal Seated Ball ValveMaterials23456789101141312118VOLK V2VOLK V2 OVERALL DIMENSIONSANSI CLASS 150# - 600#ANSI CLASS 900# - 2500#9MaterialsVOLK V3 Metal Seated Ball Valve1234567891010131112VOLK V3VOLK V3 OVERALL DIMENSIONSANSI CLASS 900# - 2500#ANSI CLASS 150# - 600#11VOLK LOW TEMPERATURE AND CRYOGENIC BALL VALVES VOLK Low Temperature Valves are designed to operate at the lowest working temperatures such as minus425.2 çc .Low temperature materials must all under-go tests to make sure of their capability in the designated tem-perature range.All VOLK low temperature valves are provided with stem extensions to maintain the integrity and reliability ofthe stem seal and thus the operation of the valve.All VOLK valves are guaranteed for low temperature service.VOLK low temperature valves are designed to work in conditions below zero temperature, such as liquefied petroleum gas, LNG, and other applications at minus 425.2çc .The following chart shows body casting and forging materials and their lowest working temperatures.12REFERENCE STANDARDSMODEL CODES OF VOLK METAL-SEATED BALL VALVE G.BOLD TYPE: 1/2” thru 42”BOLD TYPEEND CONNECTION CODEMATERIAL CODEFULL PORT CODEANSI CLASS CODEOPERATOR MODEVALVE TYPEE.MATERIALSA.VALVE TYPEB.OPERATOR MODE:C.ANSI CLASSF.END CONNECTION CODE D.FULL PORT CODENOTE : FOR SPECIAL CASEI VOLK CRYOGENIC BALL VALVEII BALL VALVE WITH PRESSURE REDUCE DEVICE EXAMPLE TYPE: VIE0STD01BW-2MEANS: 2 INCH CLASS 2500, VOLK I STD ELEC-TRIC BALL VALVE, MATERIAL A105, BWSPECIAL TYPE: V2E6FP13RJ(I)-2MEANS: 2 INCH CLASS 600, VOLK II FP ELEC-TRIC TRUNNION-MOUNTED BALL VALVE, MATERIAL A182 F51, RING JOINTVOLK Ball Valve C v 13ASME B 16.34a (1998) Pressure-Temperature Ratings Material:A105/A216-WCB(psig)Material:A182-F22/A217-WC9(psig)14World Wide Installations of VOLKdance with respective standards and specifications to prevent damage to the valve. After pressure test, the valve should be thoroughly dried and cleaned.5. The protective caps should be removed before installation and special attention should be paid to the end connections.Protective measures should be taken when welding BW or SW valves to prevent distortion of the body and seat.6. All valves should be tested and installed in the direction of the flow arrow on the valve.Transportation, Storage and Installation of the ValvesAfter-Sales Service & Customer SupportVOLK FLOW CONTROLS, INC. offers reliable and on-time after-sales service, technical and customer support. Engineers authorized by VOLK FLOW CONTROLS, INC. will arrive promptly at the site to solve any problems. ALL service centers of VOLK FLOW CONTROLS,INC. are carefully selected and trained by VOLK professional engineers.DeliveryWith modern manufacturing, assembly and test facilities controlled by strict quality control and quality assurance procedures, VOLK FLOW CONTROLS, INC. is committed to ensure that each valve is delivered to the customer RIGHT, ON TIME, EVERY TIME.1. All protective caps and the package of the valves should re-main in place during transportation and storage to prevent theend connection being damaged and impurities entering the bodycavity.2. All valves should be stored in dry conditions.3. During transportation, the valve should be in the open position.4. All valves have been tested in accordance with respectivestandards before shipment and can be put into operation oncethey arrive at the destination. If it is necessary for the user to re-test the valves, the test should be conducted strictly in accor-15。

球阀基础知识目录一、球阀概述 (2)1. 球阀定义及作用 (2)2. 球阀的应用领域 (3)3. 球阀的分类与特点 (4)二、球阀结构与原理 (5)1. 球阀结构组成 (7)2. 球阀工作原理 (7)2.1 开启过程 (8)2.2 关闭过程 (9)2.3 密封性能原理 (9)三、球阀材料 (11)1. 主体材料 (12)2. 球体材料 (13)4. 密封材料 (15)5. 其他部件材料 (16)四、球阀选型与安装 (17)1. 选型原则及注意事项 (18)2. 安装准备与条件 (18)3. 安装步骤及要求 (19)4. 调试与验收 (20)五、球阀操作与维护 (22)1. 操作规程 (23)2. 日常维护 (24)3. 故障诊断与排除 (24)4. 维修周期与建议 (26)六、球阀常见问题及解决方案 (27)1. 泄露问题 (28)3. 腐蚀问题 (29)4. 其他常见问题 (30)七、球阀的发展趋势与前景 (31)1. 技术发展与创新方向 (32)2. 市场需求与趋势分析 (33)3. 未来球阀产品的特点预测 (35)一、球阀概述球阀是一种具有开关功能的阀门，其核心部件是一个可在管道内自由滚动的球体。

通过改变球体的通道截面，球阀可以控制流体的流通，从而实现对流体的截断或调节。

球阀广泛应用于石油、化工、电力、冶金、轻工、食品等行业的高压、中压和低压管道系统。

密封性能好：采用优质的密封材料和先进的密封结构，确保在长时间运行过程中保持良好的密封效果，防止介质泄漏。

启闭迅速：球阀的启闭件为球体，启闭速度快，可满足大通径、高压力的流体控制要求。

可实现多路控制：根据需要，球阀可以实现多个通道的切换，实现流体的分流或合流。

耐腐蚀性强：球阀材料多样，可根据使用环境的要求选择不同的材料，如不锈钢、碳钢、合金钢等，以满足耐腐蚀性的要求。

球阀作为一种重要的流体控制设备，在各种工业领域具有广泛的应用价值。

1. 球阀定义及作用球阀是一种具有密封性能的阀门，它主要由阀体和阀盖、阀杆和阀座、密封圈等组成。

气动球阀的详细介绍气动球阀是一种通过气动装置控制的阀门，广泛应用于工业生产中的流体控制系统。

它具有结构简单、操作方便、密封性能好等优点，被广泛应用于石油、化工、冶金、电力、制药等行业。

气动球阀的工作原理是通过气动执行器的动作，来驱动阀球的旋转，使流体通过或截断。

气动执行器接收控制信号后，通过气源供给压缩空气，将压缩空气的动力转换为机械能，从而驱动阀球旋转。

当阀球与阀体孔道对齐时，流体通过；当阀球与阀体孔道垂直时，流体被截断。

由此可以实现对流体的控制。

气动球阀具有以下优点：1.结构简单：气动球阀的主要结构包括阀体、阀盖、阀球和传动装置，结构简单，便于加工和维修。

2.操作方便：气动球阀可以通过气动执行器实现自动化控制，方便操作和远程控制。

可以根据需要设置开启和关闭的时间，提高生产效率。

3.密封性能好：气动球阀采用全面接触密封结构，阀球与阀座的全面接触可以保证密封性能，避免泄漏和堵塞的问题。

4.流体阻力小：气动球阀的阀球采用球形结构，与流体的通道相连时，能够形成较小的阻力，减少流体的压力损失。

5.耐腐蚀性强：气动球阀的阀体和阀盖通常采用铸铁或不锈钢制造，具有较强的耐腐蚀性，可以适应不同工况下的需求。

6.耐高温、耐高压：气动球阀可以承受较高的温度和压力，适用于高温、高压的工况。

7.适应性强：气动球阀可以适应各种介质，包括液体、气体和腐蚀性介质。

气动球阀的应用范围广泛，包括石油、化工、冶金、电力、制药等行业。

在石油工业中，气动球阀常用于油田注水和输油管道的控制；在化工工业中，气动球阀常用于化工流程的控制和调节；在制药工业中，气动球阀常用于药液的处理和输送。

需要注意的是，气动球阀在使用过程中应严格按照说明书的要求进行操作和维护，以保证其正常运行和延长使用寿命。

什么是球阀球阀简介:球阀是用带有圆形通道的球体作启闭件，球体随阀杆转动实现启闭动作的阀门。

球阀的启闭件是一个有孔的球体，绕垂直于通道的轴线旋转，从而达到启闭通道的目的。

球阀主要供开启和关闭管道和设备介质之用。

球阀主要优点如下：适用于经常操作，启闭迅速、轻便。

1. 流体阻力小。

2. 结构简单，相对体积小，重量轻，便于维修。

3. 密封性能好4. 不受安装方向的限制，介质的流向可任意。

5. 无振动，噪声小。

球阀主要缺点如下：球阀按结构形式可分为：浮动球阀、固定球阀、弹性球阀和油封球阀；按通道可分为直能式、角式和三通式等，三通式又可分为T形和L形两种。

按连接方工可分为螺纹式连接、法兰连接和焊接式三种。

球阀安装与维护应注意以下事项：1. 要留有阀柄旋转的位置2. 不能用作节流。

3. 带传动机构的球阀应直立安装。

什么是截止阀截止阀简介:截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。

阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。

截止阀只适用于全开和全关，不允许作调节和节流。

截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。

当介质由阀瓣下方进入阀六时，操作力所需要克服的阻力，是阀杆和填料的磨擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。

近年来，从自密封的阀门出现后，截止阀的介质流向就改由阀瓣上方进入阀腔，这时在介质压力作用下，关阀门的力小，而开阀门的力大，阀杆的直径可以相应地减少。

同时，在介质作用下，这种形式的阀门也较严密。

我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下。

截止阀开启时，阀瓣的开启高度，为公称直径的25%～30%时，流量已达到最大，表示阀门已达全开位置。

所以截止阀的全开位置，应由阀瓣的行程来决定。

截止阀具有以下优点：1. 结构简单，制造和维修比较方便。