Product News
Silicone sealant. Type 748 non-corrosive sealant is a one-part, non-slumping paste that cures on exposure with atmospheric moisture. The formulation is suited for bonding and sealing metals, glass, silicone, organic resins and other materials. The sealant skins over in 20 minutes and is tack-free within 40 minutes. Type 748 offers 350% elongation, a 275 psi tensile strength, and a Shore A hardness of 35 durameter. Forming a bond to most clean surfaces, including many metals, glass, and silicone, it is designed for applications requiring service at temperatures ranging from -65°F to 350°F. It can also be used intermittently up to 400°F.Dow Corning Co, PO Box 0994, Midland, MI 48686-0994. 517-496-6000. Circle 583.
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General purpose relay. This PhotoMOS
relay series provides a dielectric strength of 5,000V, and is well suited for general
communications purposes. The NAiS relay is available in 4-, 6-, and 8-pin types and in
through-hole and surface-mount configurations. The operational range is 400V for load
voltage, and up to 0.13A for continuous load currents. The 6-pin and 8-pin type relays are
available in a variety of form configurations. Aromat Inc, 629 Central Ave,
New Providence NJ 07974. 800-228-2350. Circle 582.
Linear positioner.The LP050 series is
designed for compact pick-and-place, assembly, and packaging applications. The LP050
measures 2.1 in. high x 1.6 in wide. Stroke lengths up to 36 in. are available in 1-in.
increments. The Dynact series of linear positioners have a 60 percent duty cycle with up
to a 10 lb. load. The LP050 offers speeds to 8 in/sec. and thrusts up to 20 lbs in a
variety of motors. The LP050 also features adjustable preload. Enidine Inc,
7 Centre Dr, Orchard Park, NY 14127. 716-662-1900. Circle 584.
Pump. The Verderflex pump is a rugged
industrial quality pump with many contemporary designs. It is seal-less, has no flaps or
valves, is close coupled, and has pressure independent from capacity. The pump has a
capacity of 0.1 to 350GPM @ 230 pgig, and suction lift up to 30ft. It is available with
pulsation damper, leakage detector, ANSI flanges, customized drive specifications, and
mobile unit configuration. Granzow Inc, 2300 Crownpoint Executive Dr,
Charlotte, NC 28227-6702. 704-845-2300. Circle 585.
Electronic commutation drive. This
brushless DC (BLDC) motor drive comes with locked motor protection and remote forward and
reverse, enable and velocity adjust command inputs. The Model ECH05-30-001CL operates at
12 to 30V DC and has an output of 10A maximum. The drive has closed loop velocity control
with a 30V DC input and a 5A continuous output rating. BEI Sensors & Systems Co,
Kimco Magnetics, 804-A Rancheros Dr, San Marcos, CA 92069. 760-744-5671. Circle 586.
Gear drives. The Ultramite gear drive
line has four configurations. Type UJ provides ratios from 5:1 to 20,000:1 and delivers
1Ž4- to 50 -hp. Type UB offers ratios from 8:1 to 10,000:1 and also delivers 1Ž4
hp to 50 hp. Completing the Ultramite line are the Type UC helical concentric gear drive
and Type UW right-angle helical worm gear drive. All are available in a variety of sizes
and styles, and accommodate single or double solid output shafts. Falk Co,
PO Box 492, Milwaukee, WI 53201. 414-342-3131. Circle 587.
Sterile flow indicator. This indicator
can be used to observe the presence or absence of solutions and their characteristics.
This product meets FDA and 3A specifications, can be sterilized, and is autoclavable. Seal
design minimizes bacteria traps. Maximum temperature and pressure ratings for borosilicate
inserts are 100 PSI @ 250°F and 150 PSI @ 70°F. Polysufone inserts are rated 30 PSI @
250°F, 100 PSI @ 185°F, and 150 PSI@ 70°F. Papailias Inc, 245 Pegasus
Ave, Northvale, NJ 07647. 201-767-4027. 
Precision flow meter. The Mini
Perma-Mag meter measures liquid with a minimum conductivity of 0.04 micromhos. The flow
meter has a range from 0 to 10 GPM. The rate of accuracy is ±2% with 0.2% linearity and
0.25% repeatability. Powered by 12-24V DC, the meter has no moving parts in the flow
stream, and is available in brass or 316ss. The flow chamber is acrylic with 316ss
electrodes. CTE Chem Tec, 234 SW 12th Ave, Deerfield Beach, FL 33442.
954-428-8259. Circle 589.
Switching power supplies. The A-series
offers output power ranging from 25 to 500W. All models accept universal input from 85 to
265V AC; with single/dual/triple outputs from 5 to 48V DC. The A-Series feature soft-start
circuitry and EMI filtering, and will operate in a temperature range of -10 to +60 C°
without forced cooling. All A-Series models contain overvoltage and short circuit
protection circuitry. Astrodyne, 300 Myles Standish Blvd, Taunton MA 02780.
508-823-8080. Circle 590.
Piston seal. The DISO-PAC piston seal
offers snap-in installation for O-ring, T-seal, cap seal and groove design of any size for
hydraulic pistons. The sealing element is made from DISOGRIN 928 premium urethane, with a
98 Shore A durometer for extended wear. Pressure relief grooves prevent blow-by during
sudden pressure changes. Merkel Freudenberg Fluidtechnic Inc, 5375 Naiman
Parkway, Cleveland, OH 44139-1095. 800-263-7535. Circle 573.
Subminiature switches. The DK and DR
Series of subminiature snap-action switches offer water, dust, and thermal protection. The
DK and DR Series have a DC current rating of 5mA to 2A @12V DC, with a temperature range
of -40°C to +85°C, and a UL flammability rating of UL94HB. A maximum temperature rating
of +120°C can be specially ordered. Operating force for both series is 75 gm maximum. Cherry
Electrical Products, 11200 88th Ave, PO Box 913, Pleasant Prairie, WI 53158.
800-228-3327. 
PTFE chemical valves. The 22/23 series
of PTFE butterfly valves comes in 14- to 24-in, sizes in both wafer and lug bodies. The
bi-directional pressure rating for the large sizes is 150 psi; the temperature range is
-40 to 392°F. The valve design uses the energized stem sealing system which isolates the
valve body and stem from the line media creating a bubble-tight shut-off with high Cv
values. Bray Valve & Controls USA, 13333 Westland E Blvd, Houston TX
77041. 281-894-5454.