Full Aid Co., Ltd
ABOUT US
Established in 2001, Full Aid Co., Ltd. is specialized in dealing with a wide range of Medical Instruments, Laboratory Ware, Education Model and other medical goods.
Medical instruments: Sphygmomanometers, Stethoscopes, Thermometers, Surgical Tapes and Bandages, Medical Trolley, Hospital Bed, Wheel Chair, Disposable Medical Devices and Laboratory Ware items, etc.
Our products have been well accepted by all our customers, with our main international markets presently in North America, Europe, Japan and Southeast Asia. Our annual turnover is USD 5million. We firmly adhere to the principle of "Quality comes first and service the best". With experienced marketing and management personnel, advanced corporate culture, and a practical operational system, we enjoy a high reputation both at home and abroad.
We are sincerely looking forward to cooperating with all interested parties, and establishing long-standing mutual business relationships. Your attention and detailed correspondences will be highly appreciated.
Contact Us
Full Aid Co., Ltd
Add:Rm.1305A,No.1715 North Zhongshan Rd.,200061,
Shanghai,China
Tel:86-21-61478571/61478572/61478573
Fax:86-21-65872739
E-mail :sales@fullaid.com
sandra@fullaid.com
Post :200061
Website:http://www.fullaid.com
http://fullaid.en.alibaba.com
http://www.made-in-china.com/showroom/sandrashi
Contact person:Sandra Shi
平行式双闸板闸阀
平行式双闸板闸阀介绍
平板闸阀是一种关闭件为平行闸板的滑动阀。其关闭件可以是单闸板或是其间带有撑开机构的双闸板。
闸板向阀座的压紧力是由作用与浮动闸板或浮动阀座的介质压力来控制。如果是双闸板平板闸阀,则两闸板间的撑开机构可以补充这一压紧力。
平板闸阀分类
平板闸阀按驱动方式可分为手动平板闸阀、气动闸阀及电动闸阀。按用途和使用场合可分为有导流孔平板闸阀、无导流孔平板闸阀、油田平板闸阀、管线平板闸阀及燃气平板闸阀等。
平行式双闸板闸阀广泛适用于石油、化工、制药、电力等行业.在公称压力≤l,0MPa的蒸汽、水、油类等介质的管路上,作启闭用。
1、当系统正常工作时,闸板以1.0m/min匀速启、闭;而系统断电等事故状态时的关闭分为快、慢关两个阶段。100-20%开度为快关,时间10(S)。20-0%开度为慢关,时间为40(S)。2、用在水泵出口作截止、止回阀使用,该阀还具有阀杆锁定装置。保证运行安全。3、Z943T型闸阀选用新型电动装置,可就地操作也可远控,并能满足计算机程控要求。控制准确、安全、可靠。
平行双闸板闸阀是陶瓷闸阀的一种。故其结构与工作原理与闸阀一致,其启闭体(阀板)由阀杆带动阀座密封面作升降运动,可接通或截断流体的通道。当阀门部分开启时,在闸板背面产生涡流,易引起闸板的侵蚀和震动,也易损坏阀座密封面,修理困难,通常适用于不需要经常启闭,而且保持闸板全开或全闭的工况。
平行双闸板阀的工作原理:借助气缸或手轮提供的外动力,阀杆带动阀板上下移动实现阀门的启闭,阀门启闭过程中依靠双闸板之间设置弹簧的预紧力是阀板和阀座紧密接触,实现密封。