U102-B Gear Pump

U102-B Gear Pump

Materials:

Body: Aluminum (Spray-Painted)

seals: Buna-N

Technical Specifications:

Power:750-1000W

Flow Rate:45~90L/min

Rotary speed :630~730rpm

Noise:?8dB

Vacuum :>=0.054Mpa

Pressure Drop:0.12-0.25Mpa

Air separation ability:20%

Features :

Positive displacement,self priming,internal adjustable bypass valve

Designed for quiet, vibration-free operation.Reusable suction

strainer filter and reverse check valve inside adapted

Check and relief valve inside adapted

100% tested before Ex-Factory

Package:

Product ID Net Weight Cross Weight Dimension

U102-B 18kg/case of 1 18.5kg/case of 1 36×32× 30cm/case of 1

than 1000L/min. The manufacturers of submersible pump now have many in market not only home brand but exported brand. As their structure and performance vary largely, the handbook will not introduce them one by one. Some failure and trouble occurred during operation should be solved in accordance with the maintenance explanation provided by manufacturer. In order to ensure operation security difficult problem occurred should be inspected and repaired by the professional technician experienced or maintenance artificer sent by manufacturer in case of bringing accident. Article II Vapor Separator The main function of vapor separator is segregated vapor from oil and discharge so as to ensure accuracy of measure transducer under no foam condition. The principal technical indicator guideline of vapor separator is the capacity to segregate vapor and keep stability. 1-Upper cover 2-Exhaust valve seat 3-Exhaust pipe 4-Float 5-Fuel return valve 6-Frame 7-Ball-float 8-Strainer 9-Spring seat 10-Check valve 11-Check valve seat 12\13-Outlet pipe 14-Gas outlet valve Diagram 2-12: Structure cutaway view of vapor separator Check valve should be installed between vapor separator and measure transducer. Some manufacturers mount check valve in the pipeline of vapor separator and transducer, but others install check valve in the inner of vapor separator. Check valve has the function of preventing oil flow backward. The segregated capacity is the major technical parameter of vapor separator. Under low pressure and high temperature a littl fuel dispenser e of gas dissolved in oil is easily separated out. The vapor should be divided out before flowing into measure transducer so as to keep the accuracy of fuel dispenser in the scope stipulated by national standards. Stability is another key parameter of vapor separator. In case that the design and manufacture sector of pump and vapor separator exist unstable elements, the pressure pulse fluctuation of fuel dispenser’s hydraulic system will increase, even affecting the measur fuel dispenser fuel dispenser

h China and other Asian the PTB took an active part were held in　　 China (mostly in Shanghai) in the years 1999　　countries in the field of explosion　　 2002 and 2003. During the visit five PTB　　protection　　 scientists paid to Shanghai in March 2003 on　　Since 1979 the PTB has maintained intensive the occasion of the international Explosion　　contacts with the People s Republic of China Protection Seminar the subject non-electrical　　in the field of metrology. Since the eighties explosion protection was for the first time　　contacts have also been established in the discussed in detail. The seminar also dealt　　area of explosion protection above all with with the European Directive 949EC in　　the CQST Institute in Nanyang. At that time which the Chinese experts showed great　　explosion-protected electrical machines were interest.　　already manufactured in China under licence　　by Siemens. Technical contacts in the field of For the end of 2003 the stay of a guest scien-　　measuring and control techniques and auto- tist from the SIPAINEPSI at the PTB is　　mation technology were established at a later planned to continue the good cooperation.　　date. In 1997 a PTB delegation for the first Assistance by the Chinese partner institute in　　time visited several institutes in China. A fuel dispenser accordance with the European Directive　　particularly good development was achieved 949EC in company audits in the Asian　　in the cooperation with SIPAI (Shanghai region will be an important subject. It can be　　Institute of Process Automation Instrumentation) said that cooperation of many years with the　　and the testing and certification body NEPSI Chinese partners has developed into mutual　　(Nati fuel dispenser fuel dispenser

Corbis Latinos are now the region s biggest minority CHICAGO S recovery from decline is measured not just in jobs and dollars, but also in people. In America, at least, a city is considered moribund if its population is not growing. By that measure, greater Chicago is prospering; but the story is more complicated than it seems. The 2000 census was greeted with delight by the city. It showed that, after decades of losing people both to the suburbs and to other parts of the country, it had increased its population by 4% since 1990. The vast conurbation around Chicago—what the Census Bureau calls the Chicago-Naperville-Joliet metropolitan area, which includes bits of Indiana and Wisconsin—had grown by 11.2%. And though the suburbs had been the big gainers (up 14%), even the cities (towns of over 100,000 people) in that conurbation had grown by 6.3%. Urban life was evidently flourishing. The trend, though, has not been sustained. In 2000-04, the metropolitan area grew by just 3%, less than the rate of natural increase. The big towns lost population (by 0.1%), whereas the suburbs continued to grow (by 4.6%). Chicago itself shrank by over 1%. The shrinkage in the towns would have been much greater, and the growth in the suburbs much smaller, but for one thing immigration, nearly all of it by Latinos. Between 1970 and 2004, Latinos accounted for 96% of the growth of the six counties round Chicago. The average increase during the 19 fuel dispenser 90s was 57,000 people a year. The accompanying changes are already dramatic. In the city itself, more than one person in four is now a Latino, and Chicago has more Hispanics than any other city but Los Angeles. With such neighbourhoods as Greektown, Little Italy and Ukrainian Village, Chicago has never disguised its long history as a home for immigrants, many of whom cluster together for decades after their arrival. Native-born migrants have come, too, notably Midwes fuel dispenser fuel dispenser