U401-A Solenoid Valve
The flow control valve has been tested and granted Ex approval.The Ex-approval is EX m II T4.Ex certificate number is CE021037.
Materials:
Body: Die cast aluminum alloy
Technical Specifications:
Power:AC220 V,2×4W
Current Consumption: big flow valve 18mA, small flow valve 18mA
Allow flow rate:65L/min,big flow rate:50L/min,small flow rate:5L/min.
Working pressure:0.035-0.035MPa
Environmental Condition: -40~~+70degree
Features:
A high advantage in reliability and adaptability.
Housing: Die cast aluminum alloy.
Dual flow control valves have three grades of big flow, small flow and close.
The fuel resistant cable can be customized regarding length.
100% Factory Tested.
Wiring:
Color Link
Brown communal terminal
Black big flow rate
white small flow rate
Yellow/green ground
Package:
Product ID Weight Dimension
U401-A 2.1kg/case of 130 ×116× 80mm/case of 1
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es, and although the technology for
video-calling is widely deployed, hardly anyone uses it.
And yet speculation about the future of phones persists, and no
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wonder. The telephone has changed beyond recognition since its
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most rapidly evolving technological device. So to imagine the phone of
the future is also to imagine the future of consumer technology, and its
personal and social impact. What mobile phones will look like in a year
or two is easy to guess they will be slimmer and probably will let you watch television on the move. But
what about ten or 15 years from now?
The remote control for life
Making such predictions is a dangerous business, but it can also be informative and entertaining. The
chances are that phones will not only look very different—they may not even be seen. They may be
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additional features and novel uses, and users will probably interact with them in new ways, too. And
even if they are still called “phones”—a word derived from the Greek word for voice—making voice calls
may no longer be their primary function.
“The cellphone is not a telephone. It is a—I don t know what it is. A communications device? A tool I
carry in my pocket??says Don Norman of the Nielsen Norman Group, a consultancy, and author of “The
Invisible Computer? a book that predicts that computers will eventually be so integrated into everyday
items that they will vanish. Bruce Sterling, a science-fiction writer whose future caught up with him, and
who now writes books about contemporary design and technology, believes phones will be “remote
controls, house keys, Game Boys, flashlights, maps, compasses, flash drives, health monitors,
microphones, recorders, laser pointers, passports, make-up kits, burglar a fuel dispenser larms, handguns, handcuffs
and slave bracelets.?In short, he believes that the phone wi
