
U102-B Gear Pump
Materials:
Body: Aluminum (Spray-Painted)
seals: Buna-N
Technical Specifications:
Power:750-1000W
Flow Rate:45~90L/min
Rotary speed :630~730rpm
Noise:?8dB
Vacuum :>=0.054Mpa
Pressure Drop:0.12-0.25Mpa
Air separation ability:20%
Features :
Positive displacement,self priming,internal adjustable bypass valve
Designed for quiet, vibration-free operation.Reusable suction
strainer filter and reverse check valve inside adapted
Check and relief valve inside adapted
100% tested before Ex-Factory
Package:
Product ID Net Weight Cross Weight Dimension
U102-B 18kg/case of 1 18.5kg/case of 1 36×32× 30cm/case of 1
we are committed to create the best workplace, encourage our staffs to put their own personalities into their jobs, and provide them a stage to show themselves.
bunch of flowers, a teddy bear and an empty Chivas Regal bottle—in memory of a young murder victim�
lie on the street outside the DC Preparatory Academy. This patch of north-east Washington, DC, is not an easy
place to live, let alone run a school.
fuel dispenser Yet the school itself is an oasis of order. Blue-uniformed nine-year-olds look visitors straight in the eye and proffer
handshakes. In one class, a sixth-grader called Prince Taylor solves a ticklish maths problem on the overhead
projector. His teacher, Julie O Malley, asks him to explain how he did it. He starts, but she cuts him off because a
couple of his classmates are not looking at him. “Remember the rule,�says Ms O Malley. All eyes focus on Prince,
who resumes his explanation.
Schools in the rougher parts of Washington have long been among America s worst. DC Prep shows they needn t
be. Its pupils are all from an ethnic minority, mostly black. Its budget per head is no more than that of other local
public schools. It does not select entrants by academic ability. And yet in 2003-04, its first year of operation, its
pupils advanced on average 1.7 “grade equivalents�in reading (ie, they learned as much in one year as a child is
expected to learn in 1.7 years) and 2.3 in maths. The secret? Nothing fancy just getting the basics right. As a
fuel dispenser charter school, publicly-funded but free of bureaucratic control, it can shun tre fuel dispenser ndy educational theories in favour of
discipline, phonics and longer school hours.
Charter schools now educate over a fifth of the students in DC, up from none in 1996. Washington s mayor,
Anthony Williams, has championed the experiment, a stance that has not always made him popular with his fellow-
Democrats. “Parents should decide,�he says, adding that competition from charter schools should “force the
regular public school bureaucracy to change.�
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