FEATURES
B-Series switches have proven reliable
in such harsh environments as:
• Offshore oil rigs
• Chemical and petrochemical plants
• Pulp and paper mills
• Steel mills
• Power plants
• Water and sewage-treatment plants
• Other corrosive environments
B-Series Switches – Pressure, Differential
Pressure, Temperature & Hydraulic
Ashcroft Inc. supplies highly reliable
Ashcroft
®
switches and controls for indus-
trial and process applications. We begin
with rock-solid designs, matching the most
appropriate technology with the safety and
reliability requirements of the applications.
The materials of construction are specified
to Ashcroft’s exacting standards, and prod-
uct is built to last in the toughest applica-
tions. Our modern, responsive manufactur-
ing facility 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 just a telephone call away.
The Ashcroft B-Series switch line is
designed to satisfy most switch require-
ments. Materials of construction have been
selected for long life. A wide variety of pre-
cision switch elements are available to
meet every application requirement,
including hermetically sealed contacts for
added reliability and safety. The actuators
we use have been proven in more than 20
years of service in the world’s plants and
mills. Special designs are available for fire
safety, NACE, limit control and other more
stringent requirements. Simplicity and
ease of use are stressed to improve relia-
bility of the installation.
Applications include: pumps, compres-
sors, washers, filters, degreasers, evapora-
tors, recovery systems, food processing,
ground support equipment, reverse osmo-
sis systems, heat exchangers, hydraulic
systems, lubrication systems, marine
equipment, textile machinery, heating and
air conditioning equipment.
BULLETIN SW10
Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: [email protected] • www.ashcroft.com
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2007 10/08
Thermowells
Thermowells must be used on any appli-
cation where the stem of the temperature
switch may be exposed to pressure, cor-
rosive 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 2˝ which can be used
with 2
1
⁄
2
˝ “U” dimensioned thermowells or
longer. For maximum accuracy, a thermo-
well’s “U” dimension should be selected
to permit complete immersion of the sen-
sitive portion plus 1˝ when measuring the
temperature of liquids; an extra 3˝ should
be allowed when measuring the temper-
ature 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
thermowell “U” dimension. A split rubber
grommet allows easy installation and “S”
dimension adjustment.
Содержание BN 5-12 Series
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Страница 18: ...TAB 2 APPROVED SUBMITTAL ...
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Страница 133: ...Page 37 ...
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Страница 306: ...TAB 4 AS BUILTS AND SUPPLEMENTAL INFORMATION ...
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Страница 308: ...R Page 30 ...