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Differential Pressure Switches

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Brand

Dwyer (13)
Omega (2)

Configurable

configurable

Category

Differential Pressure Switches (15)
Pressure Switches (2)

Measurement Pressure, Max

0.5 inH₂O (6)
20 inH₂O (5)
2 inH₂O (4)
1.6 inH₂O (4)
10 inH₂O (3)
25 psi (3)

0.5 inH₂O (6)
20 inH₂O (5)
2 inH₂O (4)
1.6 inH₂O (4)
10 inH₂O (3)
25 psi (3)
5.5 inH₂O (3)
11 inH₂O (3)
0.15 inH₂O (3)
10 psi (2)
50 (2)
10 (2)
5 inH₂O (2)
30 inH₂O (2)
1 (2)
5 (2)
25 (2)
1 inH₂O (2)
0.25 (2)
50 psi (2)
100 (2)
2 psi (1)
125 Pa (1)
1 kPa (1)
45 psi (1)
3 kPa (1)
3 inH₂O (1)
250 Pa (1)
5 psi (1)
25 mmHg (1)
50 inH₂O (1)
85 inH₂O (1)
100 mmHg (1)
50 mmHg (1)
0.22 inH₂O (1)
100 inH₂O (1)
500 Pa (1)
60 Pa (1)
4 kPa (1)
22 inH₂O (1)
2.5 inH₂O (1)
1.2 inH₂O (1)
15 inH₂O (1)
10 mmHg (1)
75 psi (1)
15 psi (1)
44 inH₂O (1)
70 psi (1)
6 mmHg (1)
0.5 (1)
4 inH₂O (1)
2.5 (1)
8 psi (1)
20 cmH2O (1)

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Measurement Pressure, Min

3 inH₂O (4)
0.07 inH₂O (4)
4 inH₂O (4)
0.15 inH₂O (4)
1.4 inH₂O (3)
0.4 inH₂O (3)

3 inH₂O (4)
0.07 inH₂O (4)
4 inH₂O (4)
0.15 inH₂O (4)
1.4 inH₂O (3)
0.4 inH₂O (3)
-10 (2)
-1 (2)
0.5 inH₂O (2)
2 inH₂O (2)
4 psi (2)
0.5 psi (2)
-0.25 (2)
25 (1)
3 psi (1)
1 inH₂O (1)
15 psi (1)
1 psi (1)
1.5 psi (1)
0.25 (1)
10 psi (1)
50 (1)
-2.5 inH₂O (1)
10 (1)
0 psi (1)
0 inH₂O (1)
25 psi (1)
50 psi (1)
5 inH₂O (1)
0.3 inH₂O (1)
-5 (1)
0.8 inH₂O (1)
2.5 psi (1)
0 (1)
1 (1)
100 (1)
0.12 inH₂O (1)
5 (1)
9 inH₂O (1)
0.08 inH₂O (1)
0.2 inH₂O (1)
-2.5 (1)
1.5 inH₂O (1)

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Media Compatibility

HVAC / room air (9)
Non-Corrosive Dry Gases (8)
Helium (8)
Nitrogen (8)
Inert / non-reactive gases (8)
Clean dry air / inert gas (8)

HVAC / room air (9)
Non-Corrosive Dry Gases (8)
Helium (8)
Nitrogen (8)
Inert / non-reactive gases (8)
Clean dry air / inert gas (8)
Consult Factory (2)
Methane (1)
Combustible Gases (1)
Clean process / cooling water (1)
Hydrogen (1)
Potable / drinking water (1)
Fuel gases (1)
Propane (1)

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Deadband

0.4 to 0.5 inH2O (3)
0.04 to 0.05 inH2O (2)
0.1 inH2O (1)
0.4 to 0.6 inH2O (1)
0.56 to 1.1 inH2O (1)
0.15 to 0.2 inH2O (1)

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

More Options Show Less

Switch Type

Selectable (10)
SPDT NO/NC (10)
SPST (2)
(2) SPDT (2)
SSR (1)
SPDT with Manual Reset (1)

compliance

RoHS3 (14)
CE (8)

Materials

Polycarbonate (4)
Aluminum (2)
Polyurethane (2)
Bronze (1)
300 Stainless Steel (1)
Polyester (1)

Polycarbonate (4)
Aluminum (2)
Polyurethane (2)
Bronze (1)
300 Stainless Steel (1)
Polyester (1)
Polyethylene (1)
Nylon (1)
Brass (1)
PTFE (1)
316 Stainless Steel (1)
ABS (1)
Stainless Steel (1)
Neoprene (1)

More Options Show Less

Division

0.1 inH2O (1)
0.1 kPa (1)
5 Pa (1)
0.5 cmH2O (1)
2 Pa (1)
0.2 mmH2O (1)

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

More Options Show Less

Materials, Wetted

Consult Factory (7)
Brass (2)
Aluminum (1)
Silicone (1)
Buna-N (NBR) (1)
Steel (1)

Consult Factory (7)
Brass (2)
Aluminum (1)
Silicone (1)
Buna-N (NBR) (1)
Steel (1)
Nylon 6.6 (1)
Fluoroelastomer (1)
POM (1)

More Options Show Less

Operating Temperature, Max

140 °F (5)
180 °F (3)
150 °F (2)
70 °C (2)
158 °F (1)
120 °F (1)

140 °F (5)
180 °F (3)
150 °F (2)
70 °C (2)
158 °F (1)
120 °F (1)
185 °F (1)

More Options Show Less

Operating Temperature, Min

32 °F (2)
-30 °F (2)
40 °F (2)
-4 °F (2)
0 °F (1)
-40 °F (1)

32 °F (2)
-30 °F (2)
40 °F (2)
-4 °F (2)
0 °F (1)
-40 °F (1)
0 °C (1)
-40 °C (1)
-10 °F (1)
30 °F (1)
20 °F (1)

More Options Show Less

Enclosure Ratings

NEMA Type 4X (3)
IP54 (2)
IP65 (2)
IP66 (2)
NEMA Type 7 (1)
NEMA Type 4 (1)

NEMA Type 4X (3)
IP54 (2)
IP65 (2)
IP66 (2)
NEMA Type 7 (1)
NEMA Type 4 (1)
NEMA Type 3 (1)
NEMA Type 13 (1)
None (1)
NEMA Type 9 (1)

More Options Show Less

Electrical Connection

Screw Terminal (7)
1/2 in NPT female Conduit with Screw Terminal block (3)
Cable (1)
M20 Female Conduit with Strain Releif and Screw Terminal block (1)
Spade Lugs (1)
Sub-D Male Miniature Connector (1)

Screw Terminal (7)
1/2 in NPT female Conduit with Screw Terminal block (3)
Cable (1)
M20 Female Conduit with Strain Releif and Screw Terminal block (1)
Spade Lugs (1)
Sub-D Male Miniature Connector (1)
7/8 in knockout with Screw Terminal block (1)

More Options Show Less

sku_FM

true (3)

Process Connection Type

NPT Female (9)
Barbed Fitting (2)
NPT Male and Female (1)
Compression Fitting (1)
Stem (1)

Process Connection Size

1/8 in (7)
1/4 in (3)
3/16 in (1)
1/2 in x 1/8 in (1)
5/16 in (1)
5/32 in (1)

Proof Pressure

Up to 45 inH2O (3)
Up to 10 psi (1)
Up to 200 psi (1)
Up to 8 psi (1)
-20 inHg to 25 psi (1)
Up to 25 psi (1)

Up to 45 inH2O (3)
Up to 10 psi (1)
Up to 200 psi (1)
Up to 8 psi (1)
-20 inHg to 25 psi (1)
Up to 25 psi (1)
Up to 4 psi (1)
Up to 40 inH2O (1)
Up to 70 psi (1)
Up to 150 psi (1)
Up to 2 psi (1)

More Options Show Less

facet.price.price_tw_twd

£50-£199.99 (1)
£200-£499.99 (1)
£1,000-£9,999.99 (7)

Differential Pressure Switches

Grid Table

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15 Products

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Differential Pressure Switches

Differential Pressure Switches act when the pressure difference between two ports reaches a set point. Products in this category span ACI, Omega Engineering, and Dwyer Instruments metal and plastic differential switches, industrial SPDT and DPDT switches, OEM mechanical switches, air-control switches, low differential switches, floating-contact designs, and adjustable inH2O or Pa ranges.

Applications include:

Filter blockage and airflow proof alarms
Duct static pressure and damper control
Fan, blower, and equipment status interlocks
Industrial differential pressure alarm points

Choose by setpoint range, repeatability, deadband, contact rating, enclosure, media compatibility, and whether the switch is used for alarm or control.