NEMA 4X (IP66)DIFFERENTIAL
105
(4.1)
57
(2.2)
83
(3.3)
51
(2.0)
95
(3.7)
153
(6.0)
32
(1.3)
64
(2.5)
151
(5.9)
1/4 NPT
LOW PRESS.
INLET
0.125R
3/4 NPT
1/4 NPT
HIGH PRESS.
INLET
PRESSURE SWITCHES
PSW-350 Series
5 inH2O to 400 psid
PRESSURE SWITCHES
Starts at
$
465
⻬ ±1% Setpoint
Repeatability
⻬ Rugged Epoxy-
Coated NEMA 4X (IP66)
Watertight Enclosure
⻬ Dependable Switch
Actuation Between the
2 Input Pressures
⻬ High Static Pressure
SPECIFICATIONS
(See page H-29 for additional
specifications).
Process Fluid:
Buna-N and PTFE Diaphragms:
-18 to 66°C (0 to 150°F)
FKM Diaphragms:
-7 to 149°C (20 to 300°F)
Pressure Connection:
brass-plated carbon steel for psid
ranges; carbon steel for H2O ranges
OPTIONS
ORDERING ADD’L DESCRIPTION
SUFFIX COST
-V $65 FKM
-T 40 PTFE
-SS 135 SS diaphragm
1
⁄4 FNPT;
diaphragm
and O-ring
diaphragm
and O-ring
(psi units to
60 psid only)
PSW-355, $505, shown
smaller than actual size.
Dimmensions: mm (in)
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
MODEL RANGE STANDARD WORKING PROOF
NO. PRICE UNITS PRESSURE
Single Setpoint, Adjustable Deadband, Buna-N Diaphragm, O-Ring, 1⁄4 NPTF
PSW-351 $465 5 to 30 inH2O
PSW-352 465 9 to 60 inH2O
PSW-353 465 15 to 100 inH2O
PSW-354 465 23 to 150 inH2O
PSW-355 505 5 to 30 psid 3 to 27 500 psi 2000 psi 10 A SPDT
PSW-356 505 9 to 60 psid 5 to 54 500 psi 2000 psi 10 A SPDT
PSW-357 505 30 to 200 psid 18 to 180 1000 psi 4000 psi 10 A SPDT
PSW-358 505 60 to 400 psid 45 to 360 1000 psi 8000 psi 10 A SPDT
Dual Setpoint, Fixed Deadband, Buna-N Diaphragm, O-Ring, 1⁄4 NPTF
PSW-361 $495 5 to 30 inH2O
PSW-362 495 9 to 60 inH2O
PSW-363 495 15 to 100 inH2O
PSW-364 495 23 to 150 inH2O
PSW-365 535 5 to 30 psid 1.0 to 2.1 500 psi 2000 psi Dual 15 A*
PSW-366 535 9 to 60 psid 1.4 to 2.8 500 psi 2000 psi Dual 15 A*
PSW-367 535 30 to 200 psid 1.4 to 5.6 1000 psi 4000 psi Dual 15 A*
PSW-368 535 60 to 400 psid 5.6 to 11 1000 psi 8000 psi Dual 15 A*
Comes complete with operator’s manual. * Two 15 A SPDT switches.
Ordering Example: PSW-355, range of 5 to 30 psid,10 A SPDT switch, $505.
Recommended Reference Book:
ADJUSTABLE DEADBAND STATIC
PRESSURE PRESSURE
4 to 27 5.4 psi 21.6 psi 10 A SPDT
5 to 54 5.4 psi 21.6 psi 10 A SPDT
8.5 to 90 5.4 psi 21.6 psi 10 A SPDT
18 to 135 5.4 psi 21.6 psi 10 A SPDT
0.7 to 1.4 5.4 psi 21.6 psi Dual 15 A*
0.7 to 2.0 5.4 psi 21.6 psi Dual 15 A*
1.4 to 2.8 5.4 psi 21.6 psi Dual 15 A*
2.4 to 4.2 5.4 psi 21.6 psi Dual 15 A*
Process Plant Instrumentation,
Visit omega.com/bobi for Additional Books
H-26
SWITCH
EE-2584, $260.
H
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