G & L-Series Multifunction
Pressure & Temperature Switches
FEATURES
• Single setpoint, fixed deadband
• Single setpoint, adjustable deadband
• Dual setpoint
G-Series
L-Series
BULLETIN SWGL-1
Ashcroft® is a supplier of highly reliable
switches and controls for industrial and
process applications. We stress total value
to the customer. We begin with rock-solid
designs, matching the most appropriate
technology with the safety and reliability
requirements of the applications. Materials
of construction are specified to the exacting standards of Ashcroft®, and product is
built to last in the toughest applications. Our
modern, responsive manufacturing facility
in Connecticut is supported by an extensive network of stocking distributors and
factory sales offices located in virtually every
part of the world. Special application assistance is always only a telephone call away.
Ashcroft® pressure and temperature
switches are designed for the tough applications where conventional designs often
don’t measure up. A rugged 316 SS or
epoxy-coated aluminum enclosure gives
uncompromising protection.
Materials of construction have been
selected for long life. A wide variety of precision switch elements, including hermetically sealed contacts for added reliability
and safety are available to meet every
application requirement. The actuators we
use have been proven in more than 40
years of service in the world’s plants and
mills. Multiple features such as dual setpoints and adjustable deadbands are
offered. Special designs are available for
fire safety, limit control and other stringent
requirements. Ease of use is stressed to
improve reliability of the installation.
G- and L-Series switches are currently
being used successfully in pulp and paper
mills, refineries, chemical and petrochemical plants, pharmaceutical plants, dairies,
breweries, water and sewage treatment
plants, steel mills, and other tough environments. Typical applications are on compressors, pumps, paint spraying equipment, boilers and burners, turbines, reverse
osmosis systems, filters and presses.
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2007 8/07
Thermowells
Thermowells must be used on any
application where the stem of the temperature switch may be exposed to pressure, corrosive fluids or high velocity.
Additionally, the use of a thermowell permits instrument interchange or calibration
check without disturbing or closing down
the process.
Ashcroft temperature switches have
bulb diameters to match 3⁄8˝ nominal bore
thermowells. The bulbs have a sensitive
portion length of 21⁄4˝ which can be used
with 21⁄2˝ “U” dimensioned thermowells or
longer. For maximum accuracy, a thermowell “U” dimension should be selected
to permit complete immersion of the sensitive portion plus 1˝ when measuring the
temperature of liquids; an extra 3˝ should
be allowed when measuring the temperature of gases.
Thermowell bushings should be used
with remote mount temperature switches.
We recommend the standard 3˝ bulb and
code 69 Series bushings for use with any
thermo-well “U” dimension. A split rubber
grommet allows easy installation and “S”
dimension adjustment.
Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.com • www.ashcroft.com