Ningbo yongtai plastics machinery co , . ltd is specialized in the production of 100 - 3000 g hot plastic injection machine of yt and ytf series and high - . . . . . 宁波永泰塑料机械有限公司专业生产yt ytf系列100 - 3000克热塑性塑料注射成型机油田用系列高压泵和各类计量泵等，已形成年产注塑机1500余台高压泵500余台计. .
Ningbo yongtai plastics machinery co , . ltd is specialized in the production of 100 - 3000 g hot plastic injection machine of yt and ytf series and high - . . . . . 宁波永泰塑料机械有限公司专业生产yt 、 ytf系列100 - 3000克热塑性塑料注射成型机、油田用系列高压泵和各类计量泵等，已形成年产注塑机1500余台、高压泵500余台、计
Hamilton sundstrand industrial ( shanghai ) co . ltd is wholly owned by american hamilton - sundstrand company , which is the parent company of milton roy and sundyne . hsis ' s business scope is to design and manufacture high performance milton roy metering pumps and sundyne magnet driven sealless pumps 汉胜工业设备（上海）有限公司是米顿罗及胜达因之母公司美国汉胜公司在上海设立的独资企业，专业设计生产米顿罗高性能计量泵及胜达因高性能无泄漏磁力泵。
Aimed at the high - efficiency and high - credibility of great precious vacuum resin dosing equipment and with the help of engineering practice of vcd - 800 , the metric pump , metric valve and fault - auto - diagnosis system were studied , which were key parts of the equipment 本课题针对大型精密树脂灌注机的高效、高可靠要求，结合vcd - 800型灌注机的工程实践，在前人工作的基础上对灌注机的计量泵、灌注强制阀和故障自诊断系统等关键部件、关键技术进行了深入的研究。
Ningbo yongtai plastics machinery co , . ltd is specialized in the production of 100 - 3000 g hot plastic injection machine of yt and ytf series and high - pressure pumps for oil - field and measuring pumps . the factory has the ability to manufacture more than 1500 plastic injection machine , 500 high - pressure pump and over 800 measuring pumps annually 宁波永泰塑料机械有限公司专业生产yt ytf系列100 - 3000克热塑性塑料注射成型机油田用系列高压泵和各类计量泵等，已形成年产注塑机1500余台高压泵500余台计量泵800余台的生产规模。
Ningbo yongtai plastics machinery co , . ltd is specialized in the production of 100 - 3000 g hot plastic injection machine of yt and ytf series and high - pressure pumps for oil - field and measuring pumps . the factory has the ability to manufacture more than 1500 plastic injection machine , 500 high - pressure pump and over 800 measuring pumps annually . covering an area of 30 thousand square meters , the factory is equipped with advanced processing machines 宁波永泰塑料机械有限公司专业生产yt 、 ytf系列100 - 3000克热塑性塑料注射成型机、油田用系列高压泵和各类计量泵等，已形成年产注塑机1500余台、高压泵500余台、计量泵800余台的生产规模。
Through application investigation of dosing subsystem and utilizing principle of fluid mechanics ( bernoulli equation ) , quantitative dosing device was produced to measure chemical dosage , so as to settle the problem that metering pumps and electromagnetic flow meters widely used in water plants now have a very high requirement in technique and a very high cos t in maintenance . this device is easy to control , simple in maintenance and low in cost ; functionally it can substitute for metering pumps and electromagnetic flow meters used in system 通过对投加子系统的应用研究，针对目前在水厂普遍使用的投加计量泵、电磁流量计技术要求和维护维修成本高等问题，运用流体力学(伯努利方程)的原理制作定量投液装置对药液加量进行投加计量；该装置易于控制，维护维修简单、成本低廉，功能上能取代系统中使用的计量泵和电磁流量计。
