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Teflon tubing. Gas diffusion rates through Teflon AF tubing
are 200-300 times faster than other fluoropolymers. This allows gas detection or degassing
of liquid media at faster response times and in smaller spaces. Liquid degassing is
possible with Teflon AF tubing using only 1/40th the traditional length of Teflon PTFE,
FEP or PFA. Dramatic reduction in tubing length allows lower dead volume, faster response
time, smaller degassing units and higher reliability. Biogeneral Inc, San
Diego, CA.
Solenoid valves. These stainless steel solenoid valves for
corrosive fluids and steam are available in 1/2-, 3/4- and 1-in. pipe sizes. Pressures
range from 0 to 500 psi for corrosive fluids and 0 to 180 psi for steam. Other features
include: all AC and DC voltages; general purpose and explosion proof enclosures; 304
stainless steel valve body and piston; no differential pressure required to open; and no
copper bearing alloys in contact with fluid. Magnatrol Valve Inc, Hawthorne,
NJ. 
Composite ceramic tubes. These tubes, for use in high
temperature and corrosive environments, are manufactured by slip casting, which allows
production in many complex shapes and sizes up to 36 in. long. The composite ceramics
exhibit excellent thermal shock resistance and are inert to most molten metals, and their
high density prevents wetting and metal penetration. Typical applications include use with
submerged heaters, riser tubes for molten aluminum alloys, and in all types of furnaces. Accumet
Materials Co, Ossining, NY.
Shaft sensor mount.The WHIRLIGIG three in one target/bracket/
guard is available for all industry standard cylindrical or DIN inductive sensors. The
sensor bolts to the base plate and the complete assembly bolts to the machine's shaft.
Machine and shaft vibration does not affect the performance of the sensor, as the whole
assembly moves with the shaft. Personal safety is improved since the rotating target is
completely enclosed by a tough plastic cover. 4B Components Ltd, E Peoria,
IL. 
Self-centering dampers. The patented SCD09 and SCD12 dampers
allow controlled movement in extension and compression while providing a controlled rate
of return from either direction to a neutral position. The most common use for this new
technology is in the control of hydrostatic transmissions for almost any motorized
application such as lawn mowers, tractors and farm equipment. The two types provide
centering forces of 9 lbs. and 12 lbs. H.A. Guden Co, Inc, Ronkonkoma, NY.