F-Series Pressure Switches for
Hazardous Locations
RELIABLE IN –
• Offshore oil rigs
• Chemical and petrochemical plants
• Pulp and paper mills
• Engines, turbines and compressors
• Pipelines
• Water and wastewater treatment plants
• Machinery and equipment where
compact size is important
Ashcroft Inc. supplies highly reliable Ashcroft
switches and controls for industrial and
process applications. We begin with rocksolid designs, matching the most appropriate technology with the safety and reliability requirements of the applications. The
materials of construction are specified to
exacting standards, 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 just a telephone call away.
The Ashcroft
®
F-Series switch line of
compact, adjustable pressure switches is
designed to satisfy most requirements for
alarm, shutdown, control and interlock on
a wide variety of process and equipment
applications. Electromechanical pressure
switches are usually more cost effective
than transmitters for these applications.
Materials of construction have been
selected for long life. A wide variety of
precision switch elements are available to
eet every application requirement,
m
including standard hermetically sealed
contacts with 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. Simplicity and
ease of use are stressed to improve reliability of the installation. F-Series is
designed to easily retrofit many similar
models and are readily available.
Hermetically Sealed Switch
All Ashcroft F-Series models feature standard hermetically sealed switch contacts.
We recommend hermetically sealed
switch elements for improved reliability in
harsh and corrosive environments. The
Ashcroft F-Series is also approved for
installation in Division I and II hazardous
locations.
BULLETIN SW17
All specifications are subject to change witho ut no tice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2007 07/14
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
F-Series Pressure Switches for
Hazardous Locations
F-SERIES PRESSURE SWITCH MODEL NUMBER:
o specify the exact switch desired select entries from appropriate tables as shown in example below.
T
1
F P S N 7 J B 2 5 X K 3 30 PSI
2345 6 7
1 – FUNCTION
FPS – Pressure switch, single setpoint, fixed deadband
2 – ENCLOSURE
7 – NEMA 3, 4, 7 & 9, IP66
N
Anodized aluminum for hazardous locations
3 – SWITCH ELEMENTS FOR FPS
CONTROLS
.P.D.T. Switch Elements
Code UL/CSA Listed
P
J
L
JJ
LL
S
ermetically Sealed, 5A, 125/250 Vac
H
Narrow Deadband
Hermetically Sealed, 11A, 125/250 Vac
General Purpose 5A, 30 Vdc
Hermetically Sealed, 1A, 125 Vac
Gold Contacts
Dual Hermetically Sealed, 11A, 125/250 Vac
General Purpose 5A, 30 Vdc
Dual Hermetically Sealed, 1A, 125 Vac
Gold Contacts
4 – ACTUATOR SEAL
Process
Code Material Limits °F
B Buna N 0-150
V Viton 20-200
T Teflon 0-150
Stainless Steel Diaphragm/
R
S 316 Stainless Steel Welded 0-200
H
Viton O-ring
Stainless Steel Piston/
Viton O-ring
Temperature
0-150
20-200
5 – PRESSURE CONNECTION
Code Description
251⁄4 NPT Female
1
07
⁄2 NPT Female (Standard)
6 – F-SERIES OPTIONS
Code Description
XFP Fungus Proofing
XFS Factory Adjusted Setpoint
XK3 Terminal Blocks
XNH Tagging Stainless Steel
X6B Clean for Oxygen Service
7A – NOMINAL RANGE AND PERFORMANCE
TABLE – BUNA (CODE B)
Nominal Range Proof Press. Deadband (by Switch Element)
psi bar psi Code J Code P, L
30˝Hg Vac.† –1 1000 1.8-8.0 0.4-5.0
30 2 1000 0.2-1.5 0.1-1.3
0 4 1000 0.2-2.5 0.3-1.5
6
100 7 1000 0.5-4.0 0.5-2.5
200 14 1000 1.5-8.0 0.5-5.0
400 28 1600 3.0-15.0 1.5-9.0
600 40 2400 4.0-28.0 2.0-15.0
000 70 4000 6.0-50.0 3.0-30.0
1
7B – NOMINAL RANGE AND PERFORMANCE
TABLE – HIGH PRESSURE (CODE H)
Nominal Range Proof Press. Deadband (by Switch Element)
psi bar psi Code J Code P, L
1000 70 12,000 50-100 n/a
2000 140 12,000 100-200 n/a
3000 210 12,000 150-300 n/a
4000 280 16,000 150-350 n/a
7C – NOMINAL RANGE AND PERFORMANCE
TABLE – WELDED SS (CODE S)
ominal Range Proof Press. Deadband (by Switch Element)
N
psi bar psi Code J Code P, L
30 2 1000 1.0-4.5 0.5-3.5
(1)
60 4 1000 1.0-5.0 0.5-4.0
100 7 1000 1.5-10.0 1.0-6.0
200 14 1000 2.0-18.0 1.0-12.0
400 28 1600 5.0-32.0 2.0-20.0
600 40 2400 9.0-50.0 4.0-30.0
1000 70 4000 15.0-80.0 7.0-50.0
7D – NOMINAL RANGE AND PERFORMANCE
TABLE –
VITON, TEFLON, SS
w/VITON O-RING (CODES V, T & R)
Nominal Range Proof Press. Deadband (by Switch Element)
psi bar psi Code J Code P, L
30˝Hg Vac.† –1 1000 1.5-10.0 0.5-7.0
30 2 1000 0.5-3.5 0.2-2.5
60 4 1000 0.5-4.0 0.5-3.0
100 7 1000 1.0-7.0 1.0-4.5
200 14 1000 2.5-12.0 1.0-8.5
400 28 1600 5.0-30.0 2.0-17.0
600 40 2400 8.0-48.0 4.0-34.0
1000 70 4000 10.0-80.0 5.0-55.0
All models feature ±1 percent of range setpoint repeatability and a
minimum of 400 percent of range proof pressures. Setpoints are field
adjustable between 15% and 100% of nominal range listed in Table.
Exception: Stainless Steel welded(s), limits are 20% and 100%.
†Vacuum range not available with stainless steel.
(1) Ambient operating temperature limits –20 to 150°F, all styles, set-
point shift of 1% of range per 50°F temperature change is normal.
Switches are calibrated at 70°F ambient reference.
BULLETIN SW17
All specifications are subject to change witho ut no tice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2007 07/14
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
F-Series Pressure Switches for
WIRE LEADS
12 INCHES LONG
1
/2 INPT MALE
Ø .21 THRU
MOUNTING
HOLES
2 PLACES
1.7
(43)
1.50
(38)
1.15
(29)
2.00
(51)
1.50
(38)
6.4
(156)
1
/2 INPT MALE
1.15
7.1
8.5
11.0
2.0
3.1
3.1
3
/4 NPT
C
ONDUIT TYPICAL
Ø .31 HOLE
T
YPICAL
Hazardous Locations
Pressure Switch with XK3
BULLETIN SW17
Pressure Switch
All specifications are subject to change witho ut no tice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2007 07/14
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
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