U102-C Gear Pump
Materials:
Body: Cast lron (Spray-Painted)
seals: Buna-N
Technical Specifications:
Power:750-1000W
Flow Rate:45~55L/min
Rotary speed :800~1000rpm
Noise:<=68dB
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-C 32kg/case of 1 32.5kg/case of 1 27×35× 42cm/case of 1
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ew years ago.
But the technology trips up cleverer fraudsters too, using a variety of tricks. The software can, for
example, assign a customised scoring algorithm to each credit card, depending on its normal usage
patterns. That algorithm can then be fine-tuned after each transaction. If a card belonging to a Berliner
has never been used to purchase a plane ticket or buy goods outside Germany, the system may block an
attempt to book a Moscow-Tokyo flight leaving in three hours. An attempt to charge a moped to an
elderly woman s card may fail. Cards are often blocked when the volume of transactions for which they
are used abruptly spikes.
E-businesses using anti-fraud software now block about 8% of all transactions. Some aborted orders, of
course, are not fraudulent. Each “false positive�reduces profits and angers an honest shopper. To limit
such damage, risk managers (employed by the software developers or the merchants themselves) study
sales data compiled before the anti-fraud software was implemented. This analysis helps retailers find the
optimal score threshold to determine which orders they accept.
Online fraudsters have tricks of their own, of course. Carl Clump, the boss of Retail Dec fuel dispenser isions, a fraud-
detection firm based near London with clients including Wal-Mart, Sears and Bloomingdale s, offers an
example. Not long ago, American scammers began buying CDs of classical music with their purchases of
expensive items, apparently in an effort to deceive anti-fraud systems (since such musi fuel dispenser c is generally
assumed not to appeal to young, tech-savvy criminals). Retail Decisions software, called PRISM,
detected the trend. Now, purchases that combine classical or opera CDs with expensive goods receive a
higher score than purchases of high-cost items alone.
By reading a computer s internet-protocol address, anti-fraud systems can “geolocate�online buyers, and
raise or lower scores depending on where they are. Most systems penalise customers in places such as
Eastern Europe, C fuel dispenser
