U101-C Flowmeter

U101-C Flowmeter

Materials:

Body: Cast lron (Spray-Painted)

seals: Buna-N

Technical Specifications:

Discharge rate of each revolution:0.5L

Flow rate range:5L~60L/min

Accuracy:±0.2%

Repeat error:�.1%

Environmental condition:-40~~+70degree

Package:

Product ID Net Weight Cross Weight Dimension

U101-C 23kg/case of 1 25kg/case of 1 28×26× 45cm/case of 1

conducive to the failur fuel dispenser e that no oil is sucked. Don’t worry about the phenomenon of cavitation because its probability to occur is low, and the method to prevent it appearance would find when pipeline setting and the design and manufacture of pump. At present, manufacturers have achieved great progress in research to prevent cavitation in pump inlet. The phenomenon is avoidable. Stability The stability of pump is more important technical parameter, which is one of major labels measuring the performance of pump. The good stability of pump is low fluctuation in flow and slow increase of pulsant value as working long time. The 13.6 of JJG667-97 Liquid cubage flow meter stipulates that the flow rate fluctuation not exceed 2.5%, which is fuel dispenser requirement for pump stability. Under same operating condition a good stability pump reduce the abrasion of hydraulic components so as to lengthen fuel dispenser’s service life. Moreover, it is conducive to reduce leakage of measure transducer and enhance the accuracy. Noise Noise is also a symbol of pump’s performance, which relate to fuel dispenser’s noise. The GB/T9081-2001 Fuel dispenser for vehicle stipulates that the noise of fuel dispenser not exceed 80d B and the noise of pump no more than that of fuel dispenser, which is basic requirement for fuel dispenser. Noise is often created from pump of fuel dispenser, computerized fuel dispenser in particular. The pump noise is largely depended upon its stability, cavitation, partial flow speed and oil abrasion, etc. High noise pollutes environment and wastes electricity so as to increase operation cost of filling station. Usage and maintenance Many domestic component manufacturers now produce vane pump, but their products vary from inner structure, choice of material, suction capacity, stability, service life, noise and so on. Thus failure presents largely different. Vane pump should often be inspected and maintained during the operation progress. Specific procedure is as followed: Often inspect the rotati fuel dispenser

fuel dispenser Dimensions in millimetres　　 Key　　 2 Non hazardous area　　 3 Continuous　　 Zone 1: category 2 equipment　　 Zone 2: category 3 equipment　　 Figure 6 Nozzle boot area top view　　 Fuel from the nozzle boot can spread along any return surface of or to a non-hazardous area. Means　　 5.2.4.4　　 shall be provided to ensure that any such fuel is prevented from:　　 é“? entering any non-hazardous area or　　 é“ fuel dispenser ? from becoming trapped on surfaces or glands below.　　 5.3 Safety requirements protective measures construction and performance　　 5.3.1 General requirements　　 5.3.1.1 General　　 Metering pumps dispensers and remote pumping units shall comply with the safety requirements　　 5.3.1.1.1　　 andor protective measures of this clause. In addition the machine shall be designed according to the principles of　　 EN ISO 12100-1 and EN ISO 12100-2 for hazards relevant but not significant which are not dealt with by this　　 document (e.g. sharp edges).　　 NOTE For hazards which are to be reduced by the application of a B-level standard such as EN 13463-1 EN 60730-2-10　　 EN 60529 and EN 60204-1 the manufacturer should carry out a risk assessment to establish the requirements of the B-standard　　 which are to be applied. This specific risk assessment is part of the general risk assessment of the machine.　　 Where the means of reducing the risk is by the physical arrangement or positioning of the fuel dispenser

n a plant s turbines. fuel dispenser The newest ones heat the steam to as much as 600°C—a state physicists call “supercritical� But there is no reason to stop there. Engineers believe that hotter boilers would raise yields even more. Such “ultra-supercritical�boilers, they say, could achieve efficiencies of over 50%, reducing emissions still further. Substituting biomass for some of the coal burned can also help. Plants, after all, “Coal plants grow back after being harvested, so burning them does not add to overall levels produce a quarter of carbon dioxide in the a fuel dispenser tmosphere. By replacing 20% of their fuel with of the 25 billion biomass, power stations can reduce their emissions by a further 20%. (Any tonnes of carbon more than that, says Lars Stromberg of Vattenfall, a European energy firm, and the ash from burning it would gum up the works of most furnaces.) Emissions dioxide released also fall if biomass fuel is used to pre-heat the steam before it enters the boiler. every year� All told, Mitsui Babcock calculates, these measures could cut emissions from coal-fired plants to the same level as those using natural gas. The coal burnt in power plants can also be improved, mainly by drying. Less dense types, such as sub- bituminous and lignite coal, can contain up to 50% water. When burned, the water escapes as steam up the chimney, carrying valuable heat with it. Evergreen Energy, an American firm, is selling heat- and pressure-treated coal which, it claims, is as much as a third more efficient than ordinary coal. Such techniques are pa fuel dispenser