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U613-A Explosion-proof Terminal Boxes

U613-A

U613-A Explosion-proof Terminal Boxes

The boxes are suitable to be used in outdoor and indoor places of zones 1 and 2 where there is explosive mixture

Features:

Enclosure is made of casting aluminium alloy,

Surface is sprayed with plastics.

Connection with tube or through wiring.

Explosion-proof approva:l

The flow control valve has been tested and granted Ex approval.

The Ex-approval is EX m II T4.Ex certificate number is CE021037.

Package:

Product ID Net Weight Cross Weight Size

U613-A 32kg/case of 200

37kg/case of 200 22.5x22.5x33.5 cm /case of 200

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    ystem. The valve core of overflow valve moves outward so that all pressured oil flood past the outlet of overflow valve and flow into suction chamber, realizing oil circulation in pump. The hydraulic system pressure is adjusted through increasing or reducing spring pressure. The most fragile section in hydraulic system will be damaged as the pressure reaching a certain value without a overflow valve to control pressure. The spring pressure will be increased through to add the thickness of pre-pressure ring (20a). The pressure to open overflow valve and the delivery volume of fuel dispenser are also increased. Vice versa, as the thickness is reduced. working principle of inner-cycloidal gear pump Inner-cycloidal gear pump consists of a pair of fuel dispenser inner and outer gear joggled interactively. Inner gear is driver, called as inner rotor; outer gear is driven called as outer rotor. The figure of inner rotor is round arc curve, but the joint section of inner rotor figure and outer rotor curve is exterior cycloidal. Outer rotor exceeds one tooth than inner rotor. Sever sealed working cubage are formed between teeth of inner and outer rotor. Inner rotor brings outer rotor rotation anticlockwise. At that time the cubage gradually increase, formed in suction chamber by the tooth top of inner rotor and gear vale of outer fuel dispenser rotor. As pressured oil suck into discharge chamber the cubage formed by inner and outer gear is reducing, impelling oil out of pump. Continual s fuel dispenser uction and discharge result from the unceasing rotation of out gear driven by inner gear. 1-Vapor separator frame 2-Filter bracket 3-Filter 4-Filter bracket 5\6-O-ring 7-Gear group 8-Axis 9-Key 10-Cover 11-Oil seal 11a-Bolt 12-Screw 13-Elastic washer 14-Thread pipe 15-Joiter 16-Inlet filter 17-Stainer cover 18-Seal ring 19-Voverflow valve cover 20-Spring 20a-Preloading ring 21-Voverflow valve 22-Overflow valve 23-Filter with valve 23a-Spring 24-Exhaust pipe jointer 25-Screw 26-Outlet pipe 27-O-ring 28-Pump body Diagram 2-9: One kind of inner cycloida

technical specification

    .4 ASSUMPTIONS...........................................................................................................................................................12   1.5 OUTSTANDING ISSUES ..............................................................................................................................................13  2. USE CASES AND INTERFACE PARTITION IN PART A AND PART B............................................................14   2.1 XML PAYMENT PART A - EPSPOS INTERFACE ......................................................................................................14   2.2 XML PAYMENT PART B - EPS POS DEVICE PROXY INTERFACE ......................................... fuel dispenser ...................................14   2.3 SPECIFICATION OUTLINE...........................................................................................................................................14  3. XML PAYMENT PART A - EPSPOS INTERFACE: USE CASES .......................................................................15   3.1 PART A - USE CASE: INDOOR SALE PAID WITH CARD .................................................................................................15   Brief Description ................................ fuel dispenser .............................................................................................................................15   Pre-Cond fuel dispenser itions.................................................................................................................................................................15   Actors...............................................................................................................................................................................15   Main Flow Description....................................................................................................................................................15 

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    ids such as omega-3, present in oily fish including salmon and sardines, has been identified as important in producing children who are bright, dextrous and sociable. Such is the effect that it overwhelms the disadvantage of ingesting the heavy metals that tend to accumulate in oily fish. Smart mothers-to-be in the rich world take plenty of these fatty acids. Recent research presented this week at a meeting in London of the Letten Foundation shows just how important maternal nutrition can be. Indeed, a study from Tanzania and Zimbabwe shows that if a mother-to-be eats well, she may even be able to overcome the disadvantages her child will face if she carries the human immunodeficiency virus, HIV, that causes AIDS (except, of course, infec fuel dispenser tion with the virus itself). Tom Brenna of Cornell University in America has conducted research on how fatty acids, in particular, plant and animal forms of omega-3, are essential to the development of the brains of infants. He particularly stresses the importance of the animal form, called docosahexaenoic acid (DHA), present in oily fish and the eggs of hens fed seeds high in plant omega-3. Food for thought Dr Brenna s research shows that babies brains start to be loaded with DHA at 25 weeks after conception, a process that continues until they are fuel dispenser two. Moreover, fetuses and infants process lots of essential fatty acids, including DHA, in ways other than those needed to build merely the bra fuel dispenser in. This suggests that the fatty acids role is more complex, and possibly more important, than was thought. Dr Brenna reckons that DHA is so vital to developing brains that he is campaigning to get formula milk fortified with it. For babies with problems, what their mothers eat is even more important. This is particularly true for babies whose mothers are infected with HIV, even when the virus is not passed from mother to child. Such infants are smaller and more likely to be premature than those whose mothers do not have the virus. Jacqueline Uriyo of