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U403 Emergency shut-valve

fuel-dispenser

U403 Emergency shut-valve

U403 Series Emergency Shut-off Valve are installed on fuel supply lines beneath at grade level to minimize hazards associated with collision or fire at the dispenser. If the dispenser is pulled over or dislodged by collision, the top of the valve breaks off the flow of fuel. Single-poppet models shut off supply flow, while double-poppet models shut off supply as well as prevent release of fuel from the dispenser's internal piping. The base of the Emergency Valve is securely anchored to the concrete dispenser island through a stabilizer bar system within a U-Bolt Assembly. Valve inlet (bottom) connection are female pipe threads and outlet (top) connections are available with female threads, male threads, or a union fitting. Other options include suction system models with a normally closed secondary poppet which maintain prime, and models with external threads on inlet body which connect to secondary containment system.

Materials:

Body: cast iron(Spray-paint)

Surface: electronic Nickel plated

Seal : Buna-N O-ring

Features :

Flow rate: 0- 120 L/M

Working pressure: 0.2Mpa

Valve closing speed: 0.5s

Lowest shut-off temperature: 75 â„?

Medium: water, gasoline, diesel, and kerosene

Operating Environment: -30 ~+55degree

Fire Protection- a fusible link trips the valve closed at 75 to shut off fuel

supply to the dispense.

Integral Test Port - a 3/8" Test Port allows the piping system to be air tested

without breaking any piping connection.

Low-Profile Tops- Female and Union-top double-poppet valves have a low-profile top to allow upgrading from single-poppet valves without changing existing piping.

100% Factory Tested.

Replacement Parts:

Key Description Weight

1 Protect pin

1 Cap(Single) 0.795kg

2 Cap(Double) 0.895kg

Package:

Net Weight Cross Weight Dimension

18kg/case of 6 20kg/case of 6 37.5x13.5x39 cm /case of 6

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    ds of gear pumps. The following introduce cycloidal gear pump: Diagram 2-8: Two kinds of internal gear pumps Gear pump structure Diagram 2-9 is an exploded drawing for inner cycloidal gear pump. Inner cycloidal gear pump mainly composed of frame, gear-group, overflow valve, strainer, pump cover subassembly, etc. pump chamber is cylinder-shape in which strainer is installed at inlet of oil. Overflow valve and pump is in parallel connection. Concentric installation is between pump chamber and exterior gear-group, between inner gear and principal axis. But inner gear and outer gear is assembled ce fuel dispenser ntrifugally. Principal axis drives gear-group rotate. Gear pump has two chambers --- pressure oil chamber that discharge oil and suction chamber that suck oil—which are not connectable. When gear pump operating gear-group rotate anticlockwise at view of pump cover direction. Delivery pressure depends upon the adjustment of overflow valve, laden degree and inner penetration. In the process of nozzle open, small oil resistance, overflow valve is in low status of openness. However, as nozzle turn down or large oil resistance and pressure, the spring of overflow valve move sideward, increasing openness so that more oil flow into negative chamber. The outlet pressure of pump keeps under 0.3Mpa. Working principle of overflow valve The outlet of overflow valve is the interface in where pressured oil chamber pass into suction chamber. The overflow valve play role as a protection to restrict the highest pressure in hydraulic system and to adjust delivery volume of fuel dispenser. Its structure is illustrated in Diagram 2-9. Motor driving pump starting work, the pressured oil from pressure area flow into vapor-separator and overflow valve outlet via pump outlet. Given switch nozzle, part of oil flow out of pipe of vapor separator, another part of oil flow into suction chamber via overflow valve with small openne fuel dispenser ss. However, as close down nozzle, pressured oil overcome spring bounce under high pressure in hydraulic s fuel dispenser

technical specification

    - 3   Release_FP - 5 - 6 5   State error 1 State error 2 State error 5 State error 5 State error 5 State error 5   Auth-time-out - - - - - 3 - - - -   Fill-time-out - - - - fuel dispenser - - - 3 - 3 - 3   Suspend_FP - 7 7 - 9 9   State error 1 State error 2 State error 4 State error 4 State error 4   Resume_FP 6 - 6 8 - 8   State error 1 State error 2 State error 4 State error 4 State error 4   Terminate_FP 3 - 3 - 3 - 3 - 3 - 3 - 3   State error 1 State error 2   No-progress - - - - - - 7 7 - 9 9   Limit-reached - - - - - - fuel dispenser 7 - 9 9   Max_Vol - fuel dispenser

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    ief executive, who one way or another gets the people he wants nominated, reckons Lucian Bebchuk of Harvard Law School, the chief academic advocate of changing the rules to make shareholder democracy more effective. In a recent paper, “The Myth of the Shareholder Franchise� Mr Bebchuk noted that during 1996-2004, incumbents faced rival slates from candidates seeking to run the firm as a stand-alone entity on only 108 occasions—about 12 companies a year (see chart). Companies with a stockmarket value of more than $200m (still quite small) endured just 17 such contests, only two of which were succes fuel dispenser sful. Nor is it easy for shareholders to remove an official nominee for the board by casting their votes against him. Under today s rules, only votes in favour count votes against or withheld are ignored. Under this “plurality�system, a single supporting vote may get a director elected. This system came under scrutiny in 2004 when 45% of the votes cast by Disney shareholders did not support the re-election to the board of the entertainment firm s then boss, Michael Eisner. Those who favour greater shareholder power can take some comfort from the fact that this marked the beginning of the end for Mr Eisner at Disney—though he and his board would have been fully within their rights to ignore this almost unprecedented shareholder rebellion. Introducing majority voting is the aim of many of the resolutions being filed by shareholders in this proxy season. Ballots for majority voting will be held at 119 companies, according to Richard Ferlauto of the American Federation of State, County and Municipal Employees (AFSCME), a union with an activist pension fund that is seen as the leader of this campaign. Intriguingly, some companies tried to take the heat out of the campaign by offering to adopt a voluntary “director resignation�policy. Although the existing voting system would remain in p fuel dispenser lace, a candidate receiving less than 50% of votes cast would offer to resign. Shareholde fuel dispenser