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FUEL DISPENSER & SPARE PARTS

fuel-dispenser

FUEL DISPENSER & SPARE PARTS

Fuel dispenser are used in petroleum-retail service stations for filling lightweight oil including gasoline or diesel etc. We have taken up the production of fuel dispenser since1992. Among our gigantic business portfolio, oil transfer pumps were first put on our agenda and then mechanical fuel dispensers, electronic fuel dispenser in subsequence.

Our fuel dispensers have 3 series, namely, C series, D series and S series. All of the series share the same electronic system, which consists of flow meter, combination pump, auto nozzle etc. But C series is little in size and has a general outline with hoses from the middle. And D series contains jambs with stainless steel and hoses from the top. Then S series have a novel streamline outline and hoses from the top, which is bigger in size in comparison with the other ones.

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    used to keep a certain position to refuel. Working principal Pressured oil flow into the chambers in where main and vice valve located after switching main valve and flow out of spout because vice valve is opened. Liquid flowage reduces the static pressure and the pressure in upper chamber of switch. The pressure on the chambers of upper and low switch membrane are equivalent due to the front of spout communicating atmosphere. When inlet vent is flooded by oil, the lower chamber of switch membrane still keeps atmospheric pressure. Thus, pressure difference is generated between the upper and lower chambers of switch membrane, the membrane and auto-shut level moving upward, auto controlled level moves downward under the function of switch handle. Finally, steel ball is driven into the hole of auto controlled fuel dispenser level; switch handle continues to move downward; main valve is closed. In order to form the auto-shut function, two oil passages with different sections should be set (See Diagram 2-32). Here the Bernoulli equation as followed in order to explain the principle of au fuel dispenser to-shut: ? = 12 ρv12+ρgh1=?+12ρv22+ρgh2 (2--6) Among the above formula: fuel dispenser ρ── oil density ?── pressure in main valve passage v1 ── velocity of flow in main valve passage h1── height of main valve ?── pressure in vice valve v2── velocity of flow in vice valve passage h2── height of vice valve Diagram 2-32: Auto-shut nozzle Due to small nozzle body, it could be regarded as a horizontal pipe, that is h1= h2 From Formula 2-6: ?-p2?2ρ(v22-v12) (2-7) According the following Formula: v1v2=A2 A1 In the Formula: A1 ── section of main valve passage A2 ── section of vice valve passage The Formula can be converted into: ?-p2?2ρv22 [1?A2A1)] It is known from Formula 2-8 that if A2 / A1 is certain value, P2 becomes a negative value when velocity of flow increasing a certain extent, that is, P2 smaller than at

technical specification

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    urt s seven judges end their ten-year terms in October. Regardless of how they rule, a large portion of the country is sure to be unhappy. But the 1996 reform that empowered the Trife as the final arbiter of any election is far superior to what came before, where a simple majority of the lower house of Congress sufficed to declare a vote valid. © 2006 . About sponsorship Falkland Islands A new war of words Jul 13th 2006 | BUENOS AIRES From The Economist print edition Argentina launches a new offensive to dispute the islands sovereignty ONCE again the Falkland Islands, in the South Atlantic, are under assault. In London preparations are already under way to celebrate the 25th anniversary next year of Britain s v fuel dispenser ictory over Argentina in the Falklands war. But if Argentina s president, Néstor Kirchner, gets his way, Britain will not be celebrating for long. Backed by his Venezuelan counterpart, Hugo Chávez, Mr Kirchner has launched a new verbal offensive over the islands so fuel dispenser vereignty, claimed by both Argentina and Britain. Although the first landing on the islands (in fuel dispenser 1690) was by an Englishman, the first settlement (in 1764) was actually French. Two years later, the colony was handed over to Spain. In 1833, Britain sought to assert its claim to the islands, situated some 300 miles (480 km) north-east of Argentina s southern tip, by establishing a naval garrison there. The islands sovereignty has been in dispute ever since. In April 1982, Argentina s military dictatorship invaded the Falklands, holding them for 73 days until a British expeditionary force recaptured them, at a cost of 649 Argentine and 255 British lives. When the two countries resumed formal relations in 1989, they set up a “sovereignty umbrella? under which they agreed to co-operate on practical issues, while maintaining their separate claims to sole possession of the islands. This has enabled the establishment of commercia