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Daughtridge Sales Co., Inc.
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Toll Free: 800-967-7507 • Fax: 252-977-2192
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Ashcroft Pressure & Temperature Switches |
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Single Setpoint
Watertight Enclosures
General purpose switches for most
industrial and process applications.
Models are available for steam and
fuel pressure-limit controls on boilers
and burners. Ideal for compressors,
turbines, filters. blowers, etc.
FEATURES
Enclosure:
Watertight epoxy-coated aluminum
NEMA 4, 4X, IP66
Switch Function:
Single setpoint, fixed deadband,
SPDT
(or)
Single setpoint, fixed deadband,
(2) SPDT
Wetted Materials:
Stainless steel and Buna,*Teflon® or
Viton® (or)
All-welded stainless steel (or)
All-welded Monel
Ranges:
Pressure: vac. thru 3000 psi
Temperature: –40°F thru 750°F
Differential Pressure: 30 in.H2O diff.
thru 600 psid
U.L. and CSA LISTED
*Registered trademark of E. I. DuPont
PRODUCT DATA SHEET
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Single Setpoint Explosion
Proof Enclosures
Ashcroft 700 series has been developed
for most applications flound in process
plants U.L. or CSA LISTED.
All models have similar performance
characteristics to the popular Ashcroft
B400 Series switch line, which has
been
used throughout the world's
plants and
mills for over 25 years.
They feature
rugged, reliable
diaphragm-sealed piston actuators,
snap-acting contacts and all-popular
wetted materials and process
connections. Optional hermetically
sealed contacts. Monel ot fire-safe
actuators and scores of options allow
you to choose a model for any
application.
FEATURES
Enclosure:
Explosion proof, NEMA 7/9, IP66
Switch Function:
Single setpoint, fixed deadband,
SPDT
(or)
Single setpoint, fixed deadband,
(2) SPDT
Wetted Materials:
Stainless steel, Buna, Teflon® or
Viton® (or)
All-welded stainless steel (or)
All-welded Monel
Ranges:
Pressure: vac. thru 3000 psi
Temperature: –40°F thru 750°F
Differential Pressure: 30 in.H2O diff.
thru 600 psid
U.L. or CSA LISTED, ATEX models for
Hazardous locations now available.
PRODUCT DATA SHEET
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Dual Setpoint
Watertight Enclosures
Easy-to-use L-Series switches are
specifically suited for the OEM seeking
more features in a snap-acting switch.
Single or dual setpoints and fixed or
adjustable deadband models with
manywetted materials and electrical
ratings are offered. This sanp-acting
switch also replaces older mercury
models and is cost effective.
L-Series switches are ideal for blowers,
generators, scrubbers, precipitators,
compressors and turbines.
FEATURES
Enclosure:
Watertight epoxy-coated aluminum
NEMA 4, 4X, IP66
Switch Function:
Single setpoint, fixed deadband,
SPDT contacts (or)
Single setpoint, fixed deadband,(2)
SPDT contacts (or)
Single setpoint, adjustable deadband,
SPDT contacts (or)
Dual setpoint, fixed deadband, (2)
SPDT contacts
Wetted Materials:
Stainless steel and Buna, Teflon® or Viton® (or)
All-welded stainless steel (or)
All-welded Monel
Ranges:
Pressure: vac. thru 3000 psi
Temperature: –40°F thru 750°F
Differential Pressure: 30 in.H2O diff.
thru 400 psid
U.L. and CSA LISTED
PRODUCT DATA SHEET
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Dual Setpoint Explosion
Proof Enclosures
More varieties and more features are
available in teh highly reliable P-Series
switch which is especially suited for
process and refinery applications. Dual
chamber design allows setpoint changes
to be made safely, even with power
conneted. Features include NEMA 4 or
NEMA 7/9 enclosures, with single or dual
setpoints, fixed or adjustable deadbands,
with many wetted materials and electrical
ratings. Optional, all-welded stainless
steel for Monel actuators are ideal for
applications requiring NACE or fire-safe
conformance. Optional UL listed,
hermetically sealed switch contacts
improve safety and reliability.
FEATURES
Enclosure:
Watertight epoxy-coated aluminum
NEMA 4, 4X or explosion-proof
NEMA
7/9, IP66
Switch Function:
Single setpoint, fixed deadband,
SPDT contacts (or)
Single setpoint, fixed deadband (2)
SPDT contacts (or)
Single setpoint, adjustable deadband,
SPDT contacts (or)
Dual setpoint, fixed deadband (2)
SPDT
contacts
Wetted Materials:
Stainless steel and Buna,Teflon® or
Viton® (or)
All-welded stainless steel (or)
All-welded Monel
Ranges:
Pressure: vac. thru 3000 psi
Temperature: –40°F thru 750°F
Differential Pressure: 30 in.H2O diff.
thru 400 psid
U.L. or CSA LISTED
PRODUCT DATA SHEET
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Watertight Stainless
Steel Enclosures
The stainless steel enclosure offers
greater corrosion protection for this
high-performance switch in breweries,
dairies, chemical and pretrochemical
plants, off-shore rigs and pulp and
paper mills. Our standard diaphragm-
sealed piston actuators and a variety
of wetted materials are available in
these pressure, temperature and
differential pressure switches.
FEATURES
Enclosure:
Watertight 316 stainless steel NEMA 4,
4X, IP65
Switch Function:
Single setpoint, fixed deadband,
SPDT contacts (or)
Single setpoint, fixed deadband (2)
SPDT contacts (or)
Single setpoint, adjustable deadband,
SPDT contacts (or)
Dual setpoint, fixed deadband (2)
SPDT contacts
Wetted Materials:
Stainless steel and Buna, Teflon®
or Viton® (or)
All-welded stainless steel (or)
All-welded Monel
Ranges:
Pressure: vac. thru 3000 psi
Temperature: –40°F thru 750°F
Differential Pressure: 30 in.H2O diff.
thru 400 psid
U.L. and CSA LISTED
PRODUCT DATA SHEET
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Compact Explosion
Proof Enclosures
Compact size facilitates mounting in
panels and other installations where
space is a premium.
Standard hermetically sealed switch
element and sealed conduit connection
eliminate the possibility of condensation
entering the enclosure from the conduit.
Standard 1/2 NPTF pressure connection
makes retrofit on existing installations
quick and easy.
FEATURES
Enclosure (Body):
Explosion-proof, watertight, anodized
aluminum
Switch Function:
Single setpoint, field-adjustable fixed
deadband, SPDT contacts (or)
Single setpoint, field-adjustable fixed
deadband, (2) SPDT contacts
Wetted Materials:
316 stainless steel pressure connection
and choice of:
Buna N, Teflon® or Viton® diaphragm
and O-ring (or)
All-welded 316 stainless steel
diaphragm
Ranges:
Pressure: vac. thru 4000 psi
Temperature: –40°F thru 750°F
U.L. and CSA LISTED
PRODUCT DATA SHEET
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Miniature Pressure
Switches
The Ashcroft A-Series miniature
switch
line features an all-welded
stainless
steel actuator for long,
leak-free
reliable service with a
wide variety
of pressure connections,
including
NPT, straight threads,
VCO*, VCR*,
clean-in- place, etc.,
as required by
your application.
The rugged stainless steel body
is
epoxy sealed to protect the
precision
snap-acting switch element
from the
harshest environments.
Choose from
many standard
electrical connections,
or specify
what you need.
You should consider Ashcroft A-Series
pressure switches for use on heavy
vehicles, engines and compressors,
electronics processing and medical
equipment, food and beverage
processing equipment, garbage
compactors, machine tools, or any
equipment where space is a consid-
eration. This series is especially
suitable for OEM configuration.
Call for additional information.
NEW…temperature ranges now
available.
* Registered trademark of CAJON
U.L. and CSA LISTED
Explosion-proof
models available
DRESSER
GOLD SERVICE
DELIVERS . . .
• Immediate product information.
• Immediate application assistance.
• Immediate delivery on the complete
Ashcroft switch line.
PRODUCT DATA SHEET
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Electronic Pressure
Switches
The Ashcroft N-Series electronic
pressure switch combines the
popular
K-Series polysilicon thin
film pressure
transducer sensor
and
rugged, epoxy-
coated en-
closures.
The result
is a highly
reliable pressure switch
that is
ideal for
high cycle, high
pressure, or difficult
deadband
applications.
The polysilicon thin film pressure
sensor
delivers long, stable life
with
a minimum
1,000,000 cycles
at rated
load. This new
series is
available with
setpoints from 3-
20,000 psi, and with
standard
pressure
ranges from
60-20,000 psi.
NEMA 4X
watertight or
NEMA 7/9
explosion-proof
enclosures
and stainless steel wetted
parts
are
available with all popular
process
connections.
Typical applications include:
machine
tools, injection molding
machines,
presses, pumps,
hydraulic systems,
turbines, and compressors.
NEW…optional process and setpoint
indication and 4-20mA transmitter
ouput now available.
FEATURES
Enclosure:
NEMA 4 watertight or NEMA 7/9
explosion proof, IP66
Switch Function:
Single setpoint with adjustable
deadband
Wetted Material:
Stainless steel
Ranges:
6 thru 20,000 psi. Deadbands as low
as 0.1% of range.
PRODUCT DATA SHEET
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Standard Differential
Pressure Switch Actuator
Small size and high performance
capability make our differential
pressure switch ideal for most
process applications.
Minimum static
working pressures of 500
psi allow
use on the most difficult filter
applications.
We use a unique combination of
diaphragm-sealed piston actuators
to get
our high static pressure
performance in
12 ranges.
For inches of water ranges, we use a
large diaphragm for sensitiviy which
results in lower, more conventional
working pressure. Consult the factory
for application assistance on
differential
pressure switch selection.
See B, P, L & G Series
above
For
Specs on
Differential Switches
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Right click on the Product Data Links to download the product sheet to your computer. |
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Product Data Sheets require Adobe Acrobat Reader.
Click on the link below to get the lastest version.
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