U401-B Solenoid Valve

U401-B Solenoid Valve

Materials:

Body: Brass

Approval: EX mâ…¡A T4

Technical Specifications:

Power:AC220 V,2×4W

Diamter:1"

Current :big flow valve 18mA

small flow valve 18mA

Allowed flow rate:90L/min , Max flow rate: 90L/min , Mini flow rate:5L/min.

Working pressure:0.035-0.035MPa

Environmental Condition: -40~~+70degree

Package:

Product ID Weight Dimension

U401-B 2.1kg/case of 130 ×116× 80mm/case of 1

Exploded drawing of double flux solenoid valve From above diagrams, it is known that this kind of solenoid valve consists mainly of valve body, membrane, cone-shaped spring, valve cover, pilot valve, control valve of small flux, reposition valve, winding of pilot valve and small flux valve winding. The working principle of double flux solenoid valve can be leaned from Diagr fuel dispenser am 2-35. Pilot valve, small flux valve and main valve controlled by membrane are closed after power cut, no oil pass solenoid valve. When both two windings are open, pilot valve and small flux valve switch on, pressured oil pushing down membrane. Part of oil in A chamber flow toward outlet of solenoid valve via pilot valve and small flux valve, main valve is switched on after overcoming spring, at this state, solenoid valve is in large flux. When winding of pilot valve is cut power, pilot valve is closed, membrane go upward so as to close main valve due to oil pressure increase in A chamber. So fuel dispenser lenoid valve is in small flux state. If the power of winding of small flux valve is cut off, small flux valve is closed, no flux in solenoid valve. It is learned from above introduction that the large and small flux of solenoid valve are controlled by pilot valve and small flux valve. This is why it called double flux solenoid valve. As filing motor, pilot valve, small flux valve and main valve are switched on, fuel dispenser work in large flux state. When filling volume nearly reach presetting value, winding power of pilot valve is cut off, main valve is fuel dispenser closed. However, small flux valve is still working. When filling volume reach preset-value, the winding power of small flux valve is cut off, solenoid valve is closed. Filling operation is end. Troubleshooting In filing operation some troubles maybe correlate to solenoid valve, some maybe to other hydraulic components. Small flux or no delivery in fuel dispenser, for example, it is possible caused by solenoid valve or other components. Therefore, it is need to give concrete analysis and diagno

€€ 2 values are indicated because this difference may be　　 negative (delivery lower than the preset value) or positive　　 (delivery higher).　　 To authorize the rounding:　　 if the difference is negative its value must be lower than　　 the lnib byte;　　 if the difference is positive its value fuel dispenser must be lower than　　 the hnib byte.　　 Please note that dispensers that do not permit this Data_Id　　 to be changed remotely should:　　 0 Reject any write attempts with a Data_ACK value of　　 2 (Read OnlyNot Writable).　　 1 Must set the Data_Id to the hardcoded value.　　 When a master resetcold start occurs on the dispenser　　 device the dispenser should reset this Data_Id to its　　 default value.　　 PCD Handling:　　 Where the proprietary pump connected to th fuel dispenser e PCD can　　 not support this rounding mechanism directly the PCD　　 will have to treat this Data_Id as having a hardcoded and　　 unchangeable value. (See above for more explanation).　　June 2005 IFSF - STANDARD FORECOURT PROTOCOL FP31_2.21　　 DISPENSER APPLICATION　　 Page: 75　　 46 fuel dispenser Bcd4 R(1-9) O　　 Price_Set_Nb　　 (2EH) This Data_Id is used as a reference number for the unit (0-9999) W(1-9)　　 price details currently configured in the dispenser.　　 It allows the control devices to interrogate the dispenser　　 and establish if a new set of prices have been downloaded　　 by another control device. This feature is useful whe

idea that twin blades might be—or, at least sell—better. Since then, the pace of change has accelerated, as blade after blade has been added to razors in an attempt to tech-up the “shaving experience� For the most cynical shavers, this evolution is mere marketing. Twin blades seemed plausible. Three were a bit unlikely. Four, ridiculous. And five seems beyond the pal fuel dispenser e. Few people, though, seem willing to bet that Gillette s five-bladed Fusion is the end of the road for razor-blade escalation. More blades may seem impossible for the moment—though strictly speaking the Fusion has six, because it has a single blade on its flip-side for tricky areas—but anyone of a gambling persuasion might want to examine the relationship between how many blades a razor has, and the date each new design was introduced. This relationship (see chart) suggests shavers are going to get more blades whether they need them or not. However, just like Moore s law—the observa fuel dispenser tion that computer chips double in power every 18 months or so—it seems that technology as well as marketing determines the rate at which new blades are introduced. It is simply not possible to add a new blade whenever the marketing department wants one. Every additional blade, explains Michele Szynal, a spokeswoman at Gillette, adds weight and size to a razor. Firms must therefore find ways of making both razor and blades lighter, which means thinner blades, more closely spaced, made of special materials, with new coatings. So what does the future fuel dispenser hold? With only five data-points, it is hard to be sure exactly which mathematical curve is being followed. If it is what is known as a power law, then the 14-bladed razor should arrive in 2100. The spate of recent innovation, however, suggests it may be a hyperbola. In that case, blade hyperdrive will be reached in the next few years and those who choose not to sport beards might be advised to start exercising their shaving arms now. © 2006 .