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GENERAL PURPOSE DIFFERENTIAL
28.5 (1.12)
26.9 (1.06)
28.5 (1.12)
22.2
DIA.
HOLE
(0.87)
67.5 (2.66)
107 (4.21)
43.9 (1.73)
CLEARANCE
FOR 6.3 (1/4)
SCREW (2 PLCS.)
HIGH
LINE AR
64.2 (2.53)
8.3 (0.338)
14.2 (0.56)
47.6 (1.87) 76.2 (3.00)
64.2 (2.53)
LOW
1/4 NPT CONN
(2 PLACES)
HIGH
44.7 (1.76)
1/4 NPT CONN
(2 PLACES)
HIGH
4
9 (1.93)
6.3 (1/4)
NPT CONN
(2 PLACES)
HIGH
46.2 (1.82)
1/4 NPT CONN
(2 PLACES)
PRESSURE SWITCHES
PSW-150 Series
6 to 90 psid Ranges
Starts at
a
H-3
e
e
S
sso
e
c
c
r
fo
7
re
d
n
a
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swi
ri
u
a
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tc
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e
g
a
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a
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a
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d
$
212
⻬ 15 A SPDT
⻬ Easy Adjustments
⻬ Vibration-Resistant
Setpoints
PSW-150 Series differential
switches are ideally suited for
laboratory and industrial
applications in which a rugged,
repeatable, and dependable
switch is required. For ease of
installation, ports are tagged high
and low, and the setpoint adjusts
over the entire range.
SPECIFICATIONS
Approval: UL listed
Repeatability: ±1% range
Ambient Switch Shift: 0.04% range/°C
Storage Temperature: -55 to 75°C
(-67 to 167°F)
Ambient Switch Temp:
-40 to 70°C (-40 to 158°F)
Process Temp:
Brass and Phosphor Bronze:
120°C (248°F)
316 SS: 260°C (500°F)
Shock: Setpoint repeats after 15 g
at 10 ms duration
Vibration: Setpoint repeats after 2.5 g
at 5 to 500 Hz
Output: 1 SPDT, 15 A, 125/250/480 Vac
Enclosure: Cast aluminum,
gray enamel finish
Electrical: 22 mm (
conduit port, screw terminals
Pressure Port:
Weight: 0.9 kg (2 lb)
Dimensions: mm (in)
PSW-151
7
⁄8") Dia.
1
⁄4 FNPT
PSW-153
PRESSURE SWITCHES
H
PSW-154, $325,
shown smaller
than actual size.
PSW-152
PSW-154
PSW-155
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
PRESSURE PROOF STATIC BELLOWS
MODEL NO. PRICE
PSW-151 $311 0 to 6 psid 0.1 to 0.4 6 psi 30 inHg vac to 30 psi Brass
PSW-152 212 0 to 25 psid 0.6 to 1.0 25 psi 30 inHg vac to 110 psi Phosphor bronze
PSW-153 311 0 to 40 psid 0.3 to 0.7 40 psi 30 inHg vac to 180 psi Brass
PSW-154 325 0 to 70 psid 2.0 to 4.0 70 psi 30 inHg vac to 350 psi 316 SS
PSW-155 212 10 to 90 psid 2.0 to 4.0 90 psi 30 inHg vac to 200 psi Phosphor bronze
Comes complete with operator’s manual.
Ordering Example: PSW-155, phosphor bronze bellows with range of 10 to 90 psid, $212.
RANGE DEADBAND PRESSURE PRESSURE MATERIAL
H-24
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