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Pressure Switches
Ensure safe and efficient operation with our durable pressure switches. Designed to monitor system pressure and activate controls when set limits are reached, these switches help protect equipment, maintain performance, and prevent costly downtime. We offer a wide range of mechanical and electronic pressure switches, available in multiple pressure ranges, setpoint options, and connection types to suit your application. Ideal for use in HVAC, pumps, compressors, hydraulics, pneumatics, and process systems, pressure switches provide dependable performance across industries. With rugged construction, adjustable settings, and trusted-brand reliability, our pressure switches deliver accurate control, long service life, and peace of mind in demanding environments.
Filters 24,587 Results
24,587 items
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The Dwyer - PSW-191 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 10 psi to 150 psi, 2 psi to 10 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$189.88
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-108 is a General Purpose Pressure Switch featuring Industrial, NEMA-4X Enclosure, Gauge Type, (1) 15 A SPDT, 1/4 " NPT Female, 3 psi to 100 psi, 1 psi to 4 psi Deadband, Fixed, and Standard. Part of the PSW-100 Series. Sold individually.
$321.40
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-523 is a Miniature Pressure Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 3 psig to 100 psig, 1.5 psig to 3.5 psig Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$162.36
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-621 is a Mechanical Pressure Switch featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 0.8 psi to 30 psi, 0.8 psi to 1.3 psi Deadband, Fixed, Gold Plated Contact, and Indoor Application. Part of the PSW-621 Series. Sold individually.
$166.69
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-524 is a Miniature Pressure Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 7.5 psig to 250 psig, 2.2 psig to 9 psig Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$162.36
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-541 is a Miniature Vacuum Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, -28.2 inHg to -1.6 inHg, 1.3 inHg to 2.7 inHg Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$155.30
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-198 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/4 " NPT Male, 198 psi to 3000 psi, 57.5 psi to 460 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$209.21
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-109 is a General Purpose Pressure Switch featuring Industrial, NEMA-4X Enclosure, Gauge Type, (1) 15 A SPDT, 1/4 " NPT Female, 3 psi to 100 psi, Fixed, and External Manual Reset. Part of the PSW-100 Series. Sold individually.
$458.77
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-801 is an Economical Pressure Switch featuring Industrial, OEM, Vacuum Type, (1) 5 A SPST, 1/4 " NPT Male, -30 inHg to -1 inHg, 1 inHg to 4 inHg Deadband, Fixed, and for Harsh Environment. Part of the PSW-800 Series. Sold individually.
$172.76
Should ship between 31 Oct and 07 Nov
Subject to factory lead times
The Dwyer - PSW-192 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 30 psi to 600 psi, 8 psi to 60 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$189.88
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-195 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 11 psi to 150 psi, 2.5 psi to 11.5 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$205.97
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-809 is an Economical Pressure Switch featuring Industrial, OEM, Gauge Type, (1) 5 A SPST, 1/4 " NPT Male, 360 psi to 1700 psi, 70 psi to 250 psi Deadband, Fixed, and for Harsh Environment. Part of the PSW-800 Series. Sold individually.
$172.76
Should ship between 31 Oct and 07 Nov
Subject to factory lead times
The Dwyer - PSW-191 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 10 psi to 150 psi, 2 psi to 10 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$189.88
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-108 is a General Purpose Pressure Switch featuring Industrial, NEMA-4X Enclosure, Gauge Type, (1) 15 A SPDT, 1/4 " NPT Female, 3 psi to 100 psi, 1 psi to 4 psi Deadband, Fixed, and Standard. Part of the PSW-100 Series. Sold individually.
$321.40
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-523 is a Miniature Pressure Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 3 psig to 100 psig, 1.5 psig to 3.5 psig Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$162.36
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-621 is a Mechanical Pressure Switch featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 0.8 psi to 30 psi, 0.8 psi to 1.3 psi Deadband, Fixed, Gold Plated Contact, and Indoor Application. Part of the PSW-621 Series. Sold individually.
$166.69
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-524 is a Miniature Pressure Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, 7.5 psig to 250 psig, 2.2 psig to 9 psig Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$162.36
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-541 is a Miniature Vacuum Switch with Relay/Alarm featuring OEM, Gauge Type, (1) 1 A SPST, 1/8 " NPT Male, -28.2 inHg to -1.6 inHg, 1.3 inHg to 2.7 inHg Deadband, Fixed, and Gold Plated Contact. Part of the PSW-500 Series. Sold individually.
$155.30
Should ship between 18 Jul and 25 Jul
Subject to factory lead times
The Dwyer - PSW-198 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/4 " NPT Male, 198 psi to 3000 psi, 57.5 psi to 460 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$209.21
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-109 is a General Purpose Pressure Switch featuring Industrial, NEMA-4X Enclosure, Gauge Type, (1) 15 A SPDT, 1/4 " NPT Female, 3 psi to 100 psi, Fixed, and External Manual Reset. Part of the PSW-100 Series. Sold individually.
$458.77
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-801 is an Economical Pressure Switch featuring Industrial, OEM, Vacuum Type, (1) 5 A SPST, 1/4 " NPT Male, -30 inHg to -1 inHg, 1 inHg to 4 inHg Deadband, Fixed, and for Harsh Environment. Part of the PSW-800 Series. Sold individually.
$172.76
Should ship between 31 Oct and 07 Nov
Subject to factory lead times
The Dwyer - PSW-192 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 30 psi to 600 psi, 8 psi to 60 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$189.88
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-195 is an Economical Pressure Switch featuring OEM, Gauge Type, (1) 5 A SPDT, 1/8 " NPT Male, 11 psi to 150 psi, 2.5 psi to 11.5 psi Deadband, Fixed, and for Harsh Environment with 2 O/P. Part of the PSW-190 Series. Sold individually.
$205.97
Should ship between 25 Jul and 08 Aug
Subject to factory lead times
The Dwyer - PSW-809 is an Economical Pressure Switch featuring Industrial, OEM, Gauge Type, (1) 5 A SPST, 1/4 " NPT Male, 360 psi to 1700 psi, 70 psi to 250 psi Deadband, Fixed, and for Harsh Environment. Part of the PSW-800 Series. Sold individually.
$172.76
Should ship between 31 Oct and 07 Nov
Subject to factory lead times
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About NISCO Inc.
NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.