球阀

In this mathematical model, we made the comprehensive consideration of the condensability of the liquid, the Westphal＇s effect, the continuous flow condition and the dynamic property of the ball valve.

应用数值方法建立了自动球阀运动规律的计算机仿真模型，通过数值模拟，得到各个参数对球阀运动动力特性影响的基本规律。

The condensability of liquid,the Westphal's effect and the continuous flow condition are not only comprehensively considered,but also the dynamic property of the ball valve being established.

结合现场试验，根据直线电机采油泵运动特性，综合考虑了液体的可压缩性、魏氏效应、液体连续流动条件和球阀的动力特性，建立了直线电机采油泵球阀运动规律的精确运动微分方程组。

He points out that stripping of threads is a common problem with plastic product has withstood the toughest tests."It has proven to be as tough as nails-even better," Kirton says proverbially.

而尼龙球阀，由于尼龙的抗张强度强，尼龙球阀的螺纹可以承受住最严厉的测试，"可以达到你想要达到的标准"，来自SANSPARE 的Gerry Kirton 说，"它甚至比螺丝钉还要坚固"。

Especially for the fluid containing sand, cutting may damage the sealing surface 5, soft sealing gate valve of the operating temperature limits by the valve seal material good throttle control when needed (such as control valves or bypass pipe had a small vent), the cut-off valve is the most appropriate valve.

尤其对于含有砂的流体，节流会损坏密封表面 5、软密封闸阀的操作温度受密封材料的限制截止阀当需要好的节流控制（如控制阀的旁通管路或有小的排气孔）时，截止阀是最合适的球阀。

Through the American BoardìQuality Assessment Group Inc. ISO9001: 2000 quality system certification, the American Petroleum Institute API 6D product quality authentication and API 607 fire test, and obtain the certificate; companies on their use of domestic and foreign advanced valve design manufacturing technology, all aided design using AutoCAD, with a number of CNC machine tools, diving Valve pressure test the whole equipment and flying spray paint bake operation transmission line represented by a full set of high-performance processing, testing and coating equipment, according to GB, JB, HG, SH, API, DIN, JIS, BS standards, professional manufacture of "KTZ" brand ball valve, gate valve, valve, check valve, safety valve and various non-standard valves, an annual output of various category of high and medium pressure valve 5000 million yuan.

公司通过了美国船检局集团质量评估公司ISO9001：2000质量体系认证、美国石油协会API 6D产品质量认证及API 607防火试验，并获得证书；公司运用国内、外先进的阀门设计制造技术，全部采用AutoCAD辅助设计，拥有一批以数控加工机床、潜水式阀门整体试压设备和悬挂输送油漆喷烘作业线为代表的全套高性能加工、检测和涂装设备，按GB、JB、HG、SH、API、DIN、JIS、BS等标准，专业制造&KTZ&牌球阀、闸阀、截止阀、止回阀、安全阀及各种非标准阀门，年产各类高中压阀门5000余万元。

In addition, the Yancheng factory production and export of valves also increasing, from the original 23 have now developed into large-scale export-oriented enterprises more than 50, foreign sales in recent years it has an annual 40%~ 50% of the rate of growth, products sold in Europe, America, Southeast Asia, the Middle East and other countries and regions, exports of products from the past, small-caliber valve, gate valve gradual transition to a low-end products such as large-caliber valve, ball valve and other high value-added products.

此外，盐城生产出口阀门的厂家也日益增多，已从当初的两三家发展到现在拥有颇具规模的外销型企业50多家，外销量近几年更以每年40%~50%的幅度增长，产品畅销欧、美、东南亚、中东等国家和地区，出口产品从以往的小口径阀、闸阀等低档产品逐渐过渡到大口径阀、球阀等附加值较高的产品。

Furthermore, The effects of inlet velocity, outlet pressure, opening size as well as cone angle on cavitation intensity in the poppet valve, ball valve and water hydraulic poppet valve were numerically investigated.

进一步分析了锥阀，球阀和纯水液压锥阀阀口几何参数与边界条件对气穴的影响。

LLYB1750×4600×2 Hydraulic Tire Curing PressLLB1170×1750×2g Tire Curing PressLLB1665×3340×2 Tire Curing Press MachineLLB2235×10395 Tire Curing PressAPI Gate Valve:150Lb900Lb 2''16'',Globe Valve:150Lb600Lb 2''8''Metal Seated Ball Valve Q41F PN1.64.0MPA DN25200mmWafer Butterfly Check Valve Butterfly Valve:D71F,D371F , D341H PN1.62.5MPa DN501000mm.

LLYB1750×4600×2液压轮胎硫化机LLB1170×1750×2G子午线轮胎硫化机LLB1665×3340×2子午线轮胎硫化机LLB2235×10395L轮胎硫化机API闸阀：150Lb900Lb 2''16''截止阀：150Lb600Lb 2''8''金属密封球阀Q41F PN1.64.0MPa DN25200mm对夹蝶式止回阀D71F，D371F D341H PN1.62.5MPa DN501000mm。

The national industry to revitalize the valve industry to develop there must be implementation of technical innovation, and adjustment of product structure, we must dare to research and development of high technological content and high added value of labor standards with international leading valve products, such as control valves and automatic valves class regulating valve, three-wide convergence, three shunt valve, safety valve; ball valve type metal seal welded, high-parameter large-diameter valves; and power station supercritical C12?

痛定思痛。民族工业要振兴阀门行业要发展就一定要实施技术创新，调整产品结构，要勇于研制开发技术含量高、劳动附加值高具有国际领先水平的阀门产品如控制阀门和自动阀门类的调节阀，三通合流阔、三通分流阀，安全阀；球阀类的金属硬密封全焊接，高参数大口径阀；以及电站超临界C12？

All NIBCO pressure-rated bronze gate, globe, check and bronze ball valves are manufactured in NIBCO's Nacogdoches, Texas, plant.

所有美国尼伯科额定压力青铜闸阀、截止阀、止回阀和青铜球阀都是在美国德克萨斯州的尼伯科工厂制造。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。