U702-A Submersible Pump

U702-A Submersible Pump

Until today, a large of fuel service stations in domestic use fuel dispenser located on the ground.The driven motor and pump are fixed in dispenser's enclosure. Depending on the negative pressure, the dispenser inject product into the tank of car. The problem is the vaporization of product when the head is over 4.27m. In contrast, the submersible turbine pump put in product directly, it drive product with the positive pressure from tank to dispenser on the ground. The total head can reach 30m without any vaporization, so the product tank can be installed more distance apart from station when design it. In addition, due to the pump is immersed in product, so the product is directly through motor bearings, cooling & lubricating them, whenever pump is operating. The wear is little and temperature rise is lower, with the results that the trouble decrease and service life is longer.The leaking of product and noise of operation are also very small,so the pollution for environment decrease.

Features:

3 stage turbine pumps are assembled to the spline of rotor shaft. The

stator is potted with epoxy sealing compound. When the motor is

started, then the bearings are lubricated by flowing product. Product

deliver to nozzle of oil gun through check valve and hose.

The electric control system used 220V power supply is simple, the

product pipe and power pipe in pump set are separated, so the

maintenance is easy.

There is manual pressure relief valve. It is easy to relieve the pressure in

the piping system during routine maintenance or troubleshooting and get

the product back to storage tank.

This avoid any pollution for envioronment as other pressure relief

method.

Simple servicing, the pump can be easily removed from the storage tank

by unthreading 3 bolts.

100% Factory Tested.

Technique Function:

Power Supply: Single Phase, 220V, 50Hz

Motor Power: 1100W (1.5HP)

Current: 8.1A

Flow Rate: 260L/Min

Maximum Head: 30m

Products: Gasoline, Diesel.

Automatic Reset Thermal Protector: Trip up Temperature: 95?Reset Temperature: 45?

Seal Elastomers: Fluorocarbon parts with better strength and fuel-resisting.

Capacitor: 20uF,500VAC

Intake Filter Screen: Stainless steel construction filters particles from fuel, Not subject to the weight of pump.

Diameter of Riser: 114mm(4.5?

Thickness of Pipe: 4.8mm(0.188?

Package:

Packing : Carton dimensions: Net weight: Gross weight:

1set/carton 425 x 255 x 230mm 12kg 12.5kg

Explosion-proof approval:

This motor has been tested and granted Ex approval.The Ex-approval

is EX d IIA T3.Ex certificate number is CE991209.

conducive to the failure 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 p fuel dispenser ipeline 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 st fuel dispenser ability 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 requirement for pump stability. Under same operating condition a g fuel dispenser ood 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

.............39　　 Pre-Conditions.............................................................................................................................................................. fuel dispenser ...39　　 Actors...............................................................................................................................................................................39　　 Main Flow Description.................................................................................................................. fuel dispenser ..................................39　　 3.13 PART A - USE CASE: MOBILE PAYMENT ....................................................................................................................40　　 Brief Description .......................................................... fuel dispenser ...................................................................................................40　　 Pre-Conditions.................................................................................................................................................................40　　 Actors...............................................................................................................................................................................40　　 Main Flow Description....................................................................................................................................................40　　 3.14 PART A - USE CASE: ECHO ........................................................................................................................................41　　 Pre-Conditions.................................................................................................................................................................41　　 Actors...............................................................................................................................................................................41　?

ones too. Relying on just one supplier may boost your buying power, but do you know who is supplying that supplier? If one link of a company s supply chain snaps, the consequences can be grav fuel dispenser e. Ericsson and Nokia found this out when they both relied on the same supplier for a special chip in their mobile phones. After the chipmaker s factory was hit by lightning, Nokia swiftly locked up all the alternative supplies whereas Ericsson suffered a severe parts shortage and later quit making handsets on its own. A company s fuel dispenser best protection from its own supply chain is to expect failure, not to hide from it. Toyota last year narrowly escaped a parts shortage when an American supplier went bankrupt. The carmaker has now introduced an early-warning system in Europe to try to detect any looming problems fuel dispenser with suppliers before they bring production lines to a halt. Sometimes it can be worth paying more to make some things closer to the big consumer markets of America and Europe. Zara, a fast-fashion chain that produces clothes in small batches mostly around its Spanish base, can take just five weeks to get a garment into one of its stores. Stores sourcing from Asia can expect lead times of six months or so, by which time fashions can change. Not surprisingly, Zara ends up discounting fewer of its garments in clearance sales. Survival tactics The good news is that many companies are now trying to identify the choke points and weak links in their supply chains. What about Sir George s concern—the wider threat to national economies? With so many people worrying about oil supplies and a bird-flu pandemic, the prospect of supply chains collapsing around the world can seem a scary idea. It shouldn t be. There are a few industries where it makes sense for governments to keep some emergency stocks of a few essentials such as energy, munitions and medicines. But the logistical apocalypse is not a good way for politicians to think about everyday life, let alone to start interfering in markets.