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Pre-insulated
tubing
Swagelok Co., Solon, Ohio |
The company's electric and steam traced pre-insulated bundled tubing
provides process fluid freeze protection and temperature maintenance in
a variety of analytical and process instrumentation applications, including
impulse, process, and sampling lines. A user can choose from a variety of
configurations with multiple process tubes and either electric or steam
tracers. The Swagelok tubing bundle is insulated with non-wicking, fibrous
glass insulation and covered with a tough PVC or urethane jacket. Electric
traced bundling is typically used to maintain process temperatures up to
250°F (121°C), without the need for dedicated temperature controllers.
Light steam traced bundled tubing provides freeze protection and maintains
process temperatures between 50° and 200°F (10° to 93°C).
Heavy steam traced bundled tubing provides process temperature maintenance
from 200° to 400°F (93° to 204°C).
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Flow control valves
Clippard Instrument Laboratory Inc., Cincinnati,
Ohio |
Combination needle and check valve
flow controls are typically used to control airflow from air cylinders,
thereby controlling the speed at which the piston strokes, either while
extending or retracting, depending on their location in the circuit. These
JFC Series flow control valves allow free flow from the inlet to the outlet
past the needle and check valve. In reverse flow, from the outlet to the
inlet, the check valve is sealed and the flow must pass through the metered
passage controlled by the tapered adjustment needle.
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Electro-
mechanical actuator
Duff-Norton Co., Charlotte, N.C. |
The industrial-duty SuperPac electromechanical
linear actuator is for demanding applications for load capacities up to
2 tons in tension and compression. Travel speeds are available up to 50
in. per minute. Stroke lengths range from 3 in. to 24 in., although custom
lengths can be made. Rotations are reversible with torque being the same
in either direction. The SuperPac actuator features fully gasketed aluminum
construction with zinc chromate-plated translating tubes, double clevis
ends, and optional trunnion mounts. It also has cam-type adjustable internal
limit switches with optional potentiometers, ac or dc motors, and all-metal
gears. Drive systems are available with either a Ball screw or Acme screw.
Applications include automated checkout stands, electronic doors, health
and fitness machine adjustments, medical reclining chair and bed adjustments,
assembly platforms, automotive, outboard motor tilting, and hatch operations
on boats.
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Peak pressure monitoring
PCB Piezotronics Inc., Depew, N.Y. |
The Model 400B20 peak pressure monitoring system from the company's
pressure division combines a dual mode amplifier module, a peak voltage
monitoring module, and an ac power supply module into one integrated device.
The unit connects directly with an ICP or charge output piezoelectric sensor,
normalizes sensor sensitivity, and displays peak transient measurement signals
in voltage or pressure units. Ballistic testing applications include gun
barrel chamber pressure testing and lot testing of ammunition. An alternate
version is also available for force, vibration, shock, and impact applications.
The dual mode amplifier features continuous gain, and resetting or zeroing
may be accomplished manually or remotely. The peak voltage monitoring module
features dual set points that provide the ability to establish acceptable
threshold levels.
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Heat rejection unit
Parker Hannifin, Long Beach, Calif. |
An HRU-1000 heat rejection unit provides
a minimum 1,000 watts of cooling power in a small package. It has an advanced
motor driver and an automatic digital system controller that manages coolant
flow and fan speed, including system remote control and health monitoring.
The unit integrates pump, brushless dc motor, and no-leak liquid quick disconnects
with dual high-performance fans and a high-performance heat exchanger. Its
external system design, small size, and rugged packaging make it suitable
for a variety of platforms and military applications, providing a low-weight,
low-noise solution for improved computing performance. Applications include
radar and sonar communications, military avionics, ship control, mission
and targeting computers, reconnaissance, satellite tracking, display systems,
and encryption. The HRU-1000 is designed for rugged cooling environments
where space and performance are a must, and can withstand conditions that
expose it to vibration, shock, acceleration, altitude, humidity, sand, salt,
and dust.
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Cool pump
Clark Solutions, Hudson, Mass. |
Miniature piezoelectric pumps are suitable
for liquid and gas pumping in both portable and fixed applications, such
as circulating water in a spacecraft, transporting coolant through firefighters'
jackets, and cooling CPUs in computers. Piezoelectric crystals bonded to
a metal diaphragm are stressed and distorted by an electric field, which
flexes the diaphragm. Two opposing umbrella-type check valves respond to
the flexing, and create the pumping action. A water flow rate of 0 to 200
mL per minute, an airflow rate of 0 to 75 SCFH, and pressures up to 12.5
psi can be achieved. Pumps are 1.7 in. in diameter, and 1 in. high.
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Five- parameter tachometer
SE Instruments Group LLC, Langhorne, Pa. |
The Mini Speed Pro-CT50 is a portable
tachometer accurate to within ± 1 percent of reading. Optical or
contact data is available as meters, feet, inches, revolutions, or turns
per minute. The tachometer features the ability to set minimum and maximum
speed values and hold function.
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A little control
Danaher Industrial Controls, Chicago, Ill. |
The Plus series of industrial controllers
is suitable for temperature control in plastics extrusion, thermal forming,
and industrial or laboratory ovens and furnaces. Setpoints—analog
voltage or current or potentiometer settings—can be programmed from
a remote operator, PLC, or factory control software. The controllers are
1/16 DIN (48 x 48 mm).
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Infrared heater
Schwank Inc., Waynesboro, Ga. |
STS-JZ is a commercial and industrial
infrared radient tube heater that offers uniform heat distribution in warehouses,
industrial plants, service garages, loading docks, and other buildings that
require efficient space heating. Eight fire ratings—45,000 to 200,000
Btuh—and lengths from 10
to 70 ft. are available. Webbed hanger plates that promote free passage
of entrapped convection heat result in a higher tube temperature along the
entire length. Drop-down burner enclosure allows access and test firing;
a fresh-air collar is included.
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Rupture disk
Oseco Inc., Broken Arrow, Okla. |
PRO+, a rupture disk with a 95 percent operating ratio, is suitable in pressure
applications for gas and liquid services, with burst pressure ratings from
8 to 750 psig. The one-piece design uses no cutting teeth. Sensors and alarm
systems are available for creating a complete bursting notification system.
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Down the drain
Keaser Compressors Inc., Fredericksburg, Va. |
An automatic magnetic drain discharges
contaminated condensate, but not compressed air. A large orifice drain valve
eliminates clogging, according to the company. A fluid level gauge monitors
fluid levels. The drain is suitable for working pressures from 40 to 200
psi.
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Flat cables
C&M Corp., Wauregan, Conn. |
The company now manufactures flat-profile
cables for industrial robotics and factory automation. A reduced-bend radius
and low profile allow more severe flexing in OEM equipment or in-plant installations.
Twelve- to 24-gauge conductors are available in cable widths determined
by application.
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Feeding time
Eriez, Erie, Pa. |
A new line of small vibratory feeders
is available with a magnetic drive circuit. Feeders are totally enclosed
for dust and moisture resistance and are ac controlled. Single feeders or
groups of feeders can be controlled from one station.
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Up on the roof
McQuay International, Minneapolis, Minn. |
The RoofPak evaporative condenser rooftop
system is designed to save energy costs using the cooling effects of evaporation.
Evaporative condensers use a water spray that evaporates and cools the condenser
tubes down toward the ambient wet bulb, typically less than 75°F.
Sized from 75 to 150 tons, the system can be integrated into the building
automation system using open, standard protocols. The electrical service
to the unit can be sized for lower amps.
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A gripping story
SMC Corp. of America, Tustin, Calif. |
To save space and reduce bending moments,
the MHF2 air gripper—approximately one-third the height of conventional
air grippers—remains close to the manipulator to which it is attached.
Ball bearing guides direct gripper jaws and dual air pistons maintain gripping
force. The gripping forces of the 12 available models range from 8 to 200
N, strokes range from 8 to 80 mm. The operating ambient or fluid temperature
range is -10 to 60°C. Unit weight is from 65 to 1,225 grams. Maximum
operation frequency is 120 cycles per minute.
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Heat exchanger
ITT Standard, Buffalo, N.Y. |
Compact heat exchangers are made using
a brazing process that bonds 316 stainless steel plates together with a
corrugated design, eliminating the need for gasketed or rolled joints. The
product is suitable for refrigerant condensers and evaporators, and oil
coolers in engines.
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Case palletizer
FKI Logistex, St. Louis, Mo. |
New designs and interfaces are available
for the Alvey 780 case palletizer, which is suited for single-line applications
in the food and consumer goods industries. High-level infeed and right-angle
pattern formation, plus close-center rollers and a bi-parting apron improve
pattern flexibility and allow the palletizer to handle a variety of case
and pallet sizes, according to the company.
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Vibration monitor
Intonix Corp., Roseville, Minn. |
The machinery vibration monitor for
hazardous areas provides continuous machinery screening by detecting, evaluating,
and announcing vibration problems to operators as they develop. It uses
96-frequency band, 1/12 octave vibration spectrum monitoring with adjustable
settings for warning, alarm, and response time. This system learns and compares
vibration spectrums, allowing it to detect even subtle, incremental, sustained
changes. The system can shut down malfunctioning equipment to help prevent
catastrophic breakdown, costly repairs, and downtime. The vibration monitor
is designed for use in petroleum processing and other raw materials processing
operations, including grain handling, pharmaceutical, utility, and mining
operations.
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Proximity sensors
Ifm efector Inc., Exton, Pa. |
The company's inductive proximity sensors are designed for mobile
machines that are used in off-road applications. The sensors have 316 stainless
steel housings and are rated to ensure a high level of protection against
liquid ingress. With an operating temperature range of -40° to
185°F, the sensors can tolerate harsh outdoor conditions and extreme
temperature fluctuations. The sensors are designed to ignore radiated electrical
interference levels of 100 V/m according to ISO 7637-2 severity level IV,
the highest noise immunity rating in the industry, the manufacturer says.
Built specifically for severe conditions, the proximity sensors are immune
to extreme shock and vibration levels. They come in diameters of 12, 18,
and 30 mm.
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