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Differential Pressure Mechanical Pressure Switch

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price

$0-$49.99 (4)
$50-$199.99 (5)
$200-$499.99 (7)
$500-$999.99 (6)
$1,000-$9,999.99 (3)

In Stock

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brand

Dwyer (20)
Omega (3)

configurable

Media Compatibility

Air (14)
Argon (13)
Butane (2)
Carbon dioxide (13)
Combustible Gases (2)
Consult Factory (4)

Air (14)
Argon (13)
Butane (2)
Carbon dioxide (13)
Combustible Gases (2)
Consult Factory (4)
Helium (13)
Hydrogen (2)
Methane (2)
Nitrogen (13)
Non-Corrosive Dry Gases (13)
Oxygen (1)
Propane (2)

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Materials

300 Stainless Steel (1)
316 Stainless Steel (1)
Aluminum (2)
Brass (2)
Bronze (1)
Neoprene (1)

300 Stainless Steel (1)
316 Stainless Steel (1)
Aluminum (2)
Brass (2)
Bronze (1)
Neoprene (1)
Nickel-Plated Brass (1)
Nylon (1)
Polycarbonate (3)
Polyester (1)
Polyethylene (1)
Polysulfone (1)
Polyurethane (2)
PTFE (1)
Stainless Steel (1)

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Deadband

0 to 0.75 psi (1)
0 to 1 psi (1)
0.01 to 0.03 inH2O (1)
0.02 to 0.06 inH2O (1)
0.03 to 0.12 inH2O (1)
0.03 to 0.18 inH2O (1)

0 to 0.75 psi (1)
0 to 1 psi (1)
0.01 to 0.03 inH2O (1)
0.02 to 0.06 inH2O (1)
0.03 to 0.12 inH2O (1)
0.03 to 0.18 inH2O (1)
0.04 inH2O (1)
0.04 to 0.05 inH2O (3)
0.04 to 0.06 inH2O (1)
0.04 to 0.2 inH2O (1)
0.05 inH2O (1)
0.06 inH2O (1)
0.06 to 0.09 inH2O (2)
0.06 to 0.11 inH2O (1)
0.08 inH2O (1)
0.08 to 0.09 inH2O (3)
0.1 inH2O (1)
0.1 to 0.12 inH2O (1)
0.1 to 0.15 inH2O (1)
0.1 to 0.2 inH2O (1)
0.1 to 0.4 psi (1)
0.11 to 0.29 inH2O (1)
0.14 to 0.28 inH2O (1)
0.15 to 0.16 inH2O (1)
0.15 to 0.2 inH2O (1)
0.15 to 0.35 inH2O (1)
0.18 to 0.45 inH2O (1)
0.25 to 0.65 inH2O (1)
0.3 inH2O (1)
0.3 psi (1)
0.3 to 0.4 inH2O (1)
0.35 to 0.7 inH2O (1)
0.4 inH2O (1)
0.4 to 0.5 inH2O (4)
0.4 to 0.6 inH2O (1)
0.4 to 0.9 inH2O (1)
0.5 psi (1)
0.5 to 1.2 inH2O (1)
0.56 to 1.1 inH2O (1)
0.6 to 0.8 inH2O (2)
0.7 psi (1)
0.9 psi (1)
0.9 to 1.8 inH2O (1)
1 psi (1)
1 to 1.4 inH2O (2)
1 to 1.5 psi (1)
1.2 to 3 inH2O (1)
1.3 to 3 inH2O (1)
1.5 psi (1)
1.5 to 2.5 psi (1)
2.5 to 3.5 psi (1)
3.5 to 6 psi (1)
4 inH2O (1)
6 to 8 psi (1)

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Switch Rating

1 A @ 30 Vdc, 0.3 A @ 110 Vdc / 0.5 A @ 125 Vac (1)
1.5 A/0.4 A @ 250 Vac (2)
4 A @ 125/250 Vac (1)
5 A @ 120/240 Vac, 5 A @ 30 Vdc (1)
5 A @ 125/250 Vac, 5 A @ 30 Vdc (1)
10 A @ 120/240 Vac/28 Vdc; 50 mA @ 125 Vdc (1)

1 A @ 30 Vdc, 0.3 A @ 110 Vdc / 0.5 A @ 125 Vac (1)
1.5 A/0.4 A @ 250 Vac (2)
4 A @ 125/250 Vac (1)
5 A @ 120/240 Vac, 5 A @ 30 Vdc (1)
5 A @ 125/250 Vac, 5 A @ 30 Vdc (1)
10 A @ 120/240 Vac/28 Vdc; 50 mA @ 125 Vdc (1)
15 A @ 120 Vac, 8A @ 240 Vac, 0.5A @ 120 Vdc, 0.25A @ 240 Vdc (1)
15 A @ 120-480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac (4)
15A @ 120/240 Vac (1)
20 to 280 Vac, 0.01 mA to 1 A (1)
40 mA (2)
AC: 3 VA, 0.25A @ 120 VAC; DC: 5 VA, 0.25A @ 175 VDC (1)
Mica silver (STD) and phenolic silver: 15A @ 125, 250, 480 Vac, 1/8 HP @ 125 Vac, 1/4 HP @ 250 Vac; Phenolic gold: 1A @ 125 Vac (1)
Non-inductive: 2.5A @ 110 Vac, 1.5 A @ 220 Vac, 1 A @ 24 Vdc, 0.5 A @ 110 Vac; Inductive: 1 A @ 110 Vac, 0.5 A @ 220 Vac, 0.5 A @ 24 Vdc (1)

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Switch Type

(2) SPDT (2)
Selectable (18)
SPDT NO/NC (18)
SPDT with Manual Reset (1)
SPST (2)
SSR (1)

Compliance

CE (12)
CSA (5)
cULus (3)
FM (5)
UL (6)

Proof Pressure

-20 inHg to 25 psi (1)
Up to 2 psi (1)
Up to 4 psi (1)
Up to 6 psi (1)
Up to 8 psi (1)
Up to 10 psi (3)

-20 inHg to 25 psi (1)
Up to 2 psi (1)
Up to 4 psi (1)
Up to 6 psi (1)
Up to 8 psi (1)
Up to 10 psi (3)
Up to 25 psi (1)
Up to 30 psi (1)
Up to 40 inH2O (3)
Up to 45 inH2O (4)
Up to 50 inH2O (1)
Up to 50 psi (1)
Up to 70 psi (1)
Up to 90 psi (1)
Up to 150 psi (1)
Up to 200 psi (1)
Up to 2000 psi (1)
Up to 9000 psi (1)

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Materials, Wetted

Aluminum (2)
Brass (3)
Buna-N (NBR) (1)
Consult Factory (10)
Fluoroelastomer (1)
Nylon 6.6 (2)

Aluminum (2)
Brass (3)
Buna-N (NBR) (1)
Consult Factory (10)
Fluoroelastomer (1)
Nylon 6.6 (2)
POM (2)
Silicone (2)
Steel (2)

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Operating Temperature, Max

70.0 °C (2)
107.0 °C (1)
110.0 °F (2)
120.0 °F (2)
130.0 °F (1)
140.0 °F (4)

70.0 °C (2)
107.0 °C (1)
110.0 °F (2)
120.0 °F (2)
130.0 °F (1)
140.0 °F (4)
150.0 °F (2)
158.0 °F (1)
180.0 °F (5)
185.0 °F (2)
225.0 °F (1)

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Operating Temperature, Min

0.0 °C (1)
0.0 °F (1)
14.0 °F (1)
20.0 °F (2)
30.0 °F (1)
32.0 °F (2)

0.0 °C (1)
0.0 °F (1)
14.0 °F (1)
20.0 °F (2)
30.0 °F (1)
32.0 °F (2)
40.0 °F (2)
-4.0 °F (2)
-10.0 °F (2)
-30.0 °F (5)
-40.0 °C (1)
-40.0 °F (1)
-54.0 °C (1)
-65.0 °F (1)

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Mounting Orientation

90 ° Elbow (1)
Cross (1)
Horizontal Diaphragm (1)
Horizontal Ports (1)
Not Position Sensitive (1)
Panel Mount (1)

90 ° Elbow (1)
Cross (1)
Horizontal Diaphragm (1)
Horizontal Ports (1)
Not Position Sensitive (1)
Panel Mount (1)
Side Tee (1)
Straight (1)
Tee (1)
Vertical (3)
Vertical Diaphragm (8)
Vertical with Downward Pressure Ports (3)

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Process Connection Type

Barbed Fitting (5)
NPT Female (14)
NPT Male and Female (2)
Stem (1)

Process Connection Size

1/2 in x 1/8 in (1)
1/4 in (4)
1/4 in x 1/8 in (1)
1/8 in (10)
3/16 in (2)
5/16 in (3)

1/2 in x 1/8 in (1)
1/4 in (4)
1/4 in x 1/8 in (1)
1/8 in (10)
3/16 in (2)
5/16 in (3)
5/32 in (1)

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Electrical Connection

1/2 in NPT female Conduit with Screw Terminal block (4)
7/8 in knockout with Screw Terminal block (2)
Cable (1)
M20 Female Conduit with Strain Releif and Screw Terminal block (2)
Pigtail Leads (2)
Screw Terminal (10)

1/2 in NPT female Conduit with Screw Terminal block (4)
7/8 in knockout with Screw Terminal block (2)
Cable (1)
M20 Female Conduit with Strain Releif and Screw Terminal block (2)
Pigtail Leads (2)
Screw Terminal (10)
Spade Lugs (1)

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Division

0 (1)
0.01 inH2O (1)
0.02 inH2O (1)
0.02 kPa (1)
0.05 inH2O (1)
0.1 inH2O (1)

0 (1)
0.01 inH2O (1)
0.02 inH2O (1)
0.02 kPa (1)
0.05 inH2O (1)
0.1 inH2O (1)
0.1 kPa (1)
0.2 inH2O (1)
0.2 mmH2O (1)
0.5 cmH2O (1)
0.5 inH2O (1)
0.5 mmH2O (1)
1 inH2O (1)
1 mmH2O (1)
2 inH2O (1)
2 mmH2O (1)
2 Pa (1)
5 Pa (1)
10 Pa (1)

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Applications

Filter Monitoring (1)
Fluid Measurement and Control (4)
Fuel and Gas (1)
HVAC (5)
Industrial and Manufacturing (3)
Medical (1)

Filter Monitoring (1)
Fluid Measurement and Control (4)
Fuel and Gas (1)
HVAC (5)
Industrial and Manufacturing (3)
Medical (1)
Process Automation and Control (1)
Pump Control (1)
Refrigeration (1)
Refrigeration Equipment (1)

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Enclosure Ratings

IP54 (3)
IP65 (2)
NEMA Type 3 (1)
NEMA Type 4 (1)
NEMA Type 4X (1)
NEMA Type 7 (1)

IP54 (3)
IP65 (2)
NEMA Type 3 (1)
NEMA Type 4 (1)
NEMA Type 4X (1)
NEMA Type 7 (1)
NEMA Type 9 (1)
NEMA Type 13 (2)
None (2)

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Port 1 Size

1/4 in (1)
3/8 in (1)
3/16 in (1)
4 mm (1)
5/8 in (1)
5/16 in (1)

1/4 in (1)
3/8 in (1)
3/16 in (1)
4 mm (1)
5/8 in (1)
5/16 in (1)
6 mm (1)
8 mm (1)
10 mm (1)

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Differential Pressure Mechanical Pressure Switch

Grid Table

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23 Products

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PSW845

OEM Mechanical Differential Pressure Switch

The PSW-845 series are economical, compact 250 mA SPDT differential pressure switches with a fixed deadband and excellent bypass characteristics.

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Series-EWDP

Wireless Differential Pressure Switch w/ EnOcean® for HVAC, 0.08-20 inH2O

Wireless Communications Adjustable Differential Pressure Switch used to monitor pressure, vacuum, and differential pressures.

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Series-A-3000-Quick

Industrial Control: Pressure Gauges, Flow Meters & Temp Controllers

Explore our Industrial Control series featuring reliable pressure gauges, flow meters, and temperature controllers for precise monitoring and control in various applications.

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Differential Pressure Mechanical Pressure Switch

Differential pressure mechanical pressure switches monitor pressure differences between two points, activating equipment at preset thresholds. Reliable and durable for system control.