Application of ester vulcanize water glass sand in production of valve steel castings
zhang huai-song(shandong yidu valve factory; qingzhou 262500; china)

..............page:34-36

fa gan fang tuo jie gou
cheng shi chun

..............page:43

wen xian suo yin
liu kai ning

..............page:44-45

Numerical simulation and analysis for hydraulic characteristics of eccentric butterfly valves
shi juan~1; liang peng-fei~1; yao zheng~1; ma yu-shan~2; ma ming-xuan~2; guo xue-ning~2(1 college of power engineering; university of shanghai for science and technology; shanghai 200093; china; 2 ningxia wuzhong meter plant; wuzhong 751100; china)

..............page:10-13

Design of liquid position potential energy control the valve
feng tian-lin; tang xiao-qun(huazhong university of science & technology; wuhan 430074; china)

..............page:9-23

Leakage bloking with pressure on the high temperature and high pressure valve
zhang ji(the research institute in dushanzi petrochemistry subsidiary company of china national petroleum corporation; dushanzi 833600; china)

..............page:37-38,42

The analysis and strategy of valve invalidation in water plant and municipal network
xu fu-ping; sun jun(shenzhen water(group)co.; ltd; shenzhen 518000; china)

..............page:30-33

Bidirectional parallel operating ball valve
lin rong-chun; su jin-yuan(xiamen sangao weiduoli valve co.; ltd; xiamen 361000; china)

..............page:25-26

Studying double layer lining of hexstell examination standard for special valves
ran wen-hao; wang xin(lanzhou petrochemical machinery plant; lanzhou 730060; china)

..............page:24-26

Sampling valves which can guard against theft and be hided in the oil pipe line
shi xing-jun~1; han bing-qing~2; hou de-xin~3; liu wei-jie~4(1.university of petroleum; dongying 257000; china; 2.shengli oil field shida valves co.; ltd; 257000; china; 3.shengli oil field xianhe oil factory preparative group; dongying 257068; china; 4.shengli power plant; 257087; china)

..............page:7-8

Application of cast stone material in the piper line and valve
jiao yong-chen; qu shu-zhen; liu yong-gang(penglai shui cheng pipe and valve factory; penglai 265600 china)

..............page:27-29

The structure and design of high pressure ball valve
wu jian-bin(zhejiang petroche mistry valve co.; ltd; wenzhou 325000; china)

..............page:4-6

Design and calculation of open and close force in orbit ball valves
zhang guang-han; yao jin; shi li-min(sichuan university cheng feng valve research centre; chengdu valve technological research centre; chengdu 610065; china)

..............page:1-3,33

Valve working temperature is grade under 425 ℃
yue jing-hua; gai guang-ping; wen jin(lanzhou high pressure valve co.; ltd; lanzhou 730060; china)

..............page:41-42

Structure improvement on inside beside globe valve
zhang qing-ming(china stl valve group; wenzhou 325105; china)

..............page:39-40

Designing feature of titanic valve
liang xu-fa(shenyang valve research institute; shenyang liaoning 110025; china)

..............page:16-23

Welding process of Cr-Mo refractory steel casting body of power station valve
yang yu-tuan(shanghai electric (group) corp.; shanghai; 200002; china)

..............page:14-15