U102-C2 Gear Pump

U102-C2 Gear Pump

Materials:

Body: Cast lron (Spray-Painted)

seals: Buna-N

Technical Specifications:

Power:750-1000W

Flow Rate:45~90L/min

Rotary speed :800~1000rpm

Noise:<=68dB

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-C2 32kg/case of 1 32.5kg/case of 1 27×35× 42cm/case of 1

ection is small, pump suction is large; vice versa, large returned oil low suction distance. Diagram 2-5: Suction flow of vane pump Suction capacity of pump is restricted not only by its structure but also by the oil physical trait and pipeline. Under a certain temperature, air pocket phenomenon of oil will generated when vacuum reaching a given degree, so that the pump can’t suck oi fuel dispenser l normally. At high oil level, large resistance from pipeline, much higher vacuum pressure occurs at the inlet of pump; the higher temperature the more likely create a fuel dispenser ir pocket. The phenomenon is likely to appear given the oil is gasoline. The phenomenon of cavitation is generated when partial pressure at inlet of pump is low than air pressure, the dissolved gas in oil begin separate out, and oil start gasifying vigorously as pressure getting down, reaching saturation pressure. The normal working of pump is affected due to a great of foam damaging the continuity of liquid flow. Fuel dispenser is likely come out any oil or work with large noise as the cavitation is severe. Components will be damaged in this long phenomenon. At same time, oil vibration is increas fuel dispenser ed so that the accuracy become down, as well as shorting service life of hydraulic components. The correlation between liquid saturation and gas pressure is illustrated in diagram 2-6. Diagram 2-6: Relations among temperature, steam pressure and liquid saturation Diagram 2-6 shows gasoline more likely to Air area than water and coal oil under the same pressure along with temperature increasing; under the same temperature the more vacuum pressure the earlier in air-area. There are two aspects that should be considered to prevent cavitation in pump inlet. One is that the design parameter of pump should be rational. The other is that pipeline should be installed scientifically. The effect of hydraulic pipe to fuel dispenser’s suction capacity will be introduced in detail. To understand the principle of cavitation and causation of affecting pump suction capacity is

Niveau 1: bloc　　 Support de transmission Support de transmission　　 6.2.1. Protocole de transport　　 Il assure le transport physique des messages applicatifs entre quipements; il peut lui-　　 m 猰e comporter plusieurs niveaux.　　 Suivant l quipement des stations un ou p fuel dispenser lusieurs protocoles de transport peuvent 猼re　　 utilis s par exemple:　　 station c bl e Ethernet + mon tique avec interface Ethernet: fuel dispenser protocole TCPIP sur　　 r seau Ethernet　　 station c bl e Ethernet + mon tique avec interface s rie RS232: protocole TCPIP　　 entre contr 磍eur et automates + protocole s rie entre mon tique et contr 磍eur　　 station c bl e Ethernet + mon tique int gr e: protocole TCPIP sur r seau Ethernet:　　 protocole TCPIP entre contr 磍eur et automates + socket TCPIP entre mon tique et　　 contr 磍eur　　 6.2.2. Protocole d change　　 Ce protocole perme fuel dispenser t:　　 l tablissement de la liaison logique entre les applications:　　 attribution des canaux　　 contr 磍e de la compatibilit des applicatifs　　 contr 磍e de la coh rence du param trage　　 la gestion du maintien de cette liaison:　　 gestion des couples demande-r ponse　　 surveillance de la liaison　　 contr 磍e de la coh rence du param trage　　 validation g n rale des messages applicatifs (via signature)　　All right reserved �? Imprim le 210203 13:02 28138　　 MPA V5.2: SPEC

tart the negotiations, which could revive all sorts of issues. “We should not let the better be the enemy of the good,�?he says. Most UN members and human-rights groups agree. But nobody wants to isolate America, the world s most powerful country, by forcing a vote. Mr Eliasson pleads that the promotion of human rights is one of the three pillars upholding the fuel dispenser UN “If we cannot agree on a new, more efficient human-rights body, it will have serious ramifications for the whole organisation.�? Some people want fuel dispenser a cooling-off period. But then the council could become embroiled in negotiations on other sensitive issues such as management reform and the budget. And that could make matters even worse. © 2006 . Proudly Produced by nEo  About sponsorship Dung into methane The year of the dog Mar 2nd 2006 | SAN FRANCISCO From The Economist print edition Recycling in San Francisco takes a dirty step forward fuel dispenser AP Natural gas pipeline CHINA S year of the dog and George Bush s push for alternative fuel sources have proudly come together in San Francisco. The city is planning to turn the waste of its 120,000 dogs into usable energy. Known for its environmental consciousness, San Francisco already uses a dozen recycling programmes to divert 63% of its household garbage away from landfills. Ten years ago, it started a scheme to collect 300 tons (272 metric tonnes) of food scraps a day from houses and restaurants, convert these into fertiliser and sell the result to Napa Valley vineyards and to organic farms. To help it to achieve its goal of no new landfill waste by 2020, the city commissioned a study of where