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U101-B Flowmeter

fuel-dispenser

U101-B Flowmeter

This type of meter is used to fuel dispensers for measurement of pressurized oil.

Materials:

Body: Cast Iron (Spray-Painted)

seals: Buna-N

Technical Specifications:

Discharge rate of each revolution: 0.5L

Rotary direction of rotary bar: Clock wise

Environmental condition:-40~~+70degree

Minimum adjusting increasing quantity: 0.05%

Working pressure: 0.12Mpa-0.3Mpa

Repeat error: not exceed ±0.1%

Features :

Micro-accurate 4-piston,positive displacement type meter with rotary valve, exterior adjustment and double oil lip seal for long life.

External structure achieved by single body design of components.

Excellent accuracy: ±0.2% with high flow through-put

100% tested before Ex-Factory

Package:

Product ID Net Weight Cross Weight Dimension

U101-B 5.3kg/case of 1 5.5kg/case of 1 27x23x22cm/case of 1

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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 centrifugally. 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 no fuel dispenser zzle 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 openness. Howev fuel dispenser er, as close down nozzle, pressured oil overcome spring bounce under high pressure in hydraulic s fuel dispenser

technical specification

    tion   layer 7 layers (1-6) layers (1-6) layer 7  FP2_1.90 IFSF STANDARD FORECOURT PROTOCOL February 2006   COMMUNICATION SPECIFICATION   Page: 8  2 Communication Principles   The transport layer for an IFSF network may be either a Lonworks based network   architecture or a system based on TCPIP. The TCPIP specification is given in Part   2.II. This document describes the implementation over LonWorks. The application   layer defined by the IFSF is independent of the transport layer used.  2.1 LON Features   The LON component selected to provide the ISO communications layers 1 to 6 is   already used in the building wiringservices business. The very large usage of this   component offers a powerful solution at an acceptable cost.   The LON is able to use diff fuel dispenser erent physical layers (layer 1):   - RS485 (max speed: 39 kbits)   - Transformers (78 kbits or 1.25 Mbits)   - Power Lines (PLT-20 Cenelec C-Band)   - Optical Fibres   - Short Range Radio   - Infrared Light   - Intrinsically Safe   - Free Form Topology (FTT-10A 78 kbitss)   LonWorks Specific Network Parameters   Addressing:   - the top level of the addressing hierarchy of a LonWorks network is a domain. If   different applications are to share a communication network they may be separated   into different domains.All forecourt devices are installed in domain 1.   - the second level of addressing is the subnet. A subnet is a logical grouping of nodes   from one or more channels. There may be up to 255 subnets per domain.   - the third level of addressin fuel dispenser g is the node. There may be up to 127 n fuel dispenser

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    vants, but saw no reason to keep in touch with the lower orders after they had left his service. Only occasionally, did he drop his nice-guy image. When Yuri Andropov died, Reagan said he wouldn t go to any memorial “I don t want to honour that prick.� Reagan s authority was not just a matter of deeply-held principles. Behind the indifference to details, there was a surprisingly good tactical brain. “Anytime I can get 70% of what I am asking for out of a hostile legislative body, I ll take it,�he explained about Congress. “I figure it will work well enough for me to go back later and get a little more of it here and a little more of it there.�In his negotiations with Mikhail Gorbachev, it was Reagan who repeatedly focused on the main issues. Unlike some other biographers, Mr Reeves was an eyewitness to relatively little of all this. Most of his material is second-hand and the accumulation of detail, especially contemporary newspaper accounts, is sometimes exhausting. But his fuel dispenser main technique, of telescoping in on individual dramas of the presidency, does produce some memorable set pieces. The meetings with Mr Gorbachev read like a political thriller. But the one that stands out is the event that forged the Reagan legend his brush with assassination in 1981. It is easy to see why the country warmed to a man who insisted that he would walk into the hospital, but then collapsed inside. As doctors fought to save the president, blood bubbling out of his mouth, a secret-service man prayed. “Oh my God, we ve lost him.�Meanwhile, back at the White House, his staff haggled over who should run the American government—little realising of course that the one who did was the genial old man hanging on to life in George Washington University Hospital. President Reagan The Triumph of Imagination. By Richard Reeves. Simon & Schuster; 592 pages; $30 © 2006 . Alternat fuel dispenser ive photography Unfrozen in time Feb 2nd 2006 | AUSTIN, TEXAS From The Econ fuel dispenser