美国volk球阀简介

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。

美标球阀标准
美国标准球阀（American Standard Ball Valves）是一种常见的流体控制阀，用于对介质（如空气、水、汽油、液压油等）进行控制和分配。

美标球阀是一种简单易用的可靠设备，可用于处理大量介质和负荷，并且具有长寿命、节能、低噪声和低维护成本等优点。

美标球阀的设计结构很简单，由三个部分组成：阀体、阀杆、阀球。

阀体由不锈钢或铸铁制成，具有耐高压、耐腐蚀、耐磨损和耐高温等特性，能够防止介质破坏阀门。

阀杆由不锈钢或钢铁制成，并配有不锈钢活塞头，具有耐腐蚀、耐磨损和耐高温性能。

阀球由铸铁或不锈钢制成，具有耐磨损、耐腐蚀、耐高温和耐高压特性，能够有效控制所接收的介质。

美标球阀的安装简单，可以根据不同的应用需要，采用螺栓连接、焊接连接或法兰连接的方式安装，孔径可以根据客户的需要定制，以满足不同的应用要求。

此外，美标球阀还配有一种可靠的密封结构，以确保密封性能。

美标球阀可以用于各种液压系统，如空气压缩机、燃料系统、冷却系统、液压控制系统等，可以有效地控制介质的流动状态。

它具有出色的耐腐蚀性、耐磨损性和耐高温性能，能够满足不同环境条件下的工作要求。

总之，美标球阀是一种可靠的设备，用于对介质进行控制和分配，具有简单的设计结构、容易安装、可靠的密封性能、耐腐蚀性、耐磨损性和耐高温性能等特点，能够满足不同工况条件下的操作要求。