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

l gear pump Trouble and Maintenance The mainly troubleshooting and failure about pump presents in Table 2-1. Table 2-1 Troubleshooting Serial No. Failure Failure reasons Solutions 1 No delivery or inefficient discharge Exterior elements: Motor stick; motor reversal; Sliding V belt; no oil in tank; pipe jammed; Check motor and its wiring; tighten V belt; inspect tank; dredge pipeline. Gear being stuck Clean waste in pump chamber Waste in outlet of overflow valve Disconnect overflow valve lid and clean waste; Leakage on valve Check oil groove Overweary gear or bearing Replace gears or bearing 2 Large noise or tremble Exterior reasons: Too long horizontal distance between fuel dispenser and tank; many elbow on inlet pipe; waste jam pipe; small diameter of pipe Dealt with in design and construction Intensive pressure Decrease thickness of pressured ring Overflow valve is stuck Clean waste and burr Overweary gear or bearing Replace gears or bear fuel dispenser ing 3 Inner leakage Overweary gears Replace gears Leakage on frame seal Frame seal disabled Replace frame seal Leakage on pump body or joint face O-ring disabled Substitute seal ring 2.5 Important notices in operation Often inspect the rotation of pump axis, leakage, abnormal noise, vibration on V wheel and lose bolt that tight pump key. Regularly c fuel dispenser lean strainer. The tightness of V wheel should be appropriate, neither too tight nor too loose. These V fuel dispenser wheels of motor, pump and adjusting driven wheel should be in parallel level. Don’t adjusting overflow valve spring too tights in case that result in high pressure of hydraulic system, increase noise and vibration so as to enhance pump abrasion. Prohibit suck water or oil with much water. Strictly abide by the operation requirements on explosive atmosphere. Submersible pump In China filing stations recently begin to adopt submersible pump as the power resource of fuel dispenser. Submersible pump gen

recipient　　 - the message type (yyy) is 100 for unsolicited　　 messages which must not be acknowledged　　 - the token (xxxxx) is created by the originator of　　 this message　　 bin16 Message Length　　 M_Lg　　 - the number of bytes of the message following　　 bin8 1 to 8 Database Address Length　　 DB_Ad_Lg　　 - the number of bytes used to specify the database　　 address from where the data has come　　 x bin8 Database Address　　 DB_Ad　　 - the database address from where the data are　　 fuel dispenser coming　　 (x = 1 to 8)　　 bin8 1 to 255 Data Identifier　　 Data_Id　　 - the identifier for the first application data　　 element which shall be sent　　 bin8 0 to 254 Data Length　　 Data_Lg　〠fuel dispenser € or or - number of bytes for the contents of the first　　 fuel dispenser bin8 bin16 255 application data element　　 1　　 0 - 65535 - if the length is bigger than 254 see - the　　 length could be 0 (e.g. commands without data)　　 appli- appli- Data Element Contents　　 Data_El　　 c

Ten years ago, the abolition of affirmative action was widely expected to transform the racial mix of California s top universities and turn them into less diverse places. The first prediction turned out to be right; the second did not. In 1995, the University of California s eight undergraduate colleges enrolled 945 black students. In 1998, the first year when the colour-blind regime was fully enforced, they enrolled 739—a drop of 22% in a period when the number of new students rose by more than a tenth. In the two most prestigious colleges, Berkeley and UCLA, the number of blacks fell by 47%. The proportion of black students has never returned to the level of the mid-1990s. But the University of California s campuses have become more diverse anyway. Last year, 15% of newly admitted students were Hispanic and an astonishing 41% were Asian. Whites, who were supposed to benefit most from the demise of affirmative action, comprised 34% of the new intake—a smaller proportion than in 1995, and less than their share fuel dispenser of California s high-school graduates. Asians are packing California s lecture halls partly because they do so well in tests, and partly because they are less welcome elsewhere. Elite universities on the east coast continue to favour black and Hispanic candidates. They also favour the children of donors and alumni, most of whom are white. Last year, 47% of whites and 46% o fuel dispenser f blacks who were offered a place at the University of California took it up, compared with 65% of Asian fuel dispenser s. California s universities are at least providing a route to the upper-middle class for an immigrant group that suffers discrimination in other parts of America. And there are other changes, hard to imagine without Proposition 209, of which they can also be proud. The decade-ago row over how many fairly successful black 18-year-olds ought to be admitted to the state s top universities was always somewhat beside the point. The real scandal was, and is, the tiny numbers of successful black 18-year-