Dwyer Pressure Switch, Series A4
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Series A4 Differential Pressure Switch

Brand: Dwyer Instruments, LLC
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Rugged Series A4 Differential Pressure Switch offers field adjustments and can handle system pressures up to 6000 psig. Piston design allows mounting in any orientation.

The switch is capable of carrying moderate shock and vibratory loads.

Displaying price & availability for United States in CAD Change Location

5 models matching criteria
A4-2
DWYER Differential Pressure Switch, ± 4 psi (.28 bar) Repeatability, Set Point (increasing) 13-25 psid (.89-1.7 bar), Set Point (decreasing) 5-16 psid (.34-1.1 bar). show more
  • Pressure Range - psid: 5 to 25 (bar: 0.34 to 1.7, kPa: 34.4 to 172)
100+ In Stock
$423.00CAD
Does not ship to United States
A4-3
DWYER Differential Pressure Switch, ± 8 psi (.55 bar) Repeatability, Set Point (increasing) 25-45 psid (1.7-3.1 bar), Set Point (decreasing) 10-21 psid (.68-1.5 bar). show more
  • Pressure Range - psid: 10 to 45 (bar: 0.68 to 3.1, kPa: 68.9 to 310.2)
100+ In Stock
$450.00CAD
Does not ship to United States
A4-1
DWYER Differential Pressure Switch, ± 2 psi (.14 bar) Repeatability, Set Point (increasing) 7-13 psid (.48-.89 bar), Set Point (decreasing) 2-7 psid (.14-.48 bar). show more
  • Pressure Range - psid: 2 to 13 (bar: 0.13 to 0.89, kPa: 13.7 to 89.6)
20 In Stock
$2,468.00CAD
Does not ship to United States
A4-4
DWYER Differential Pressure Switch, ± 16 psi (1.1 bar) Repeatability, Set Point (increasing) 35-160 psid (2.4-11.0 bar), Set Point (decreasing) 20-80 psid (1.4-5.5 bar). show more
  • Pressure Range - psid: 20 to 160 (bar: 1.3 to 11.0, kPa: 137.8 to 1,103)
18 In Stock
$2,363.00CAD
Does not ship to United States
A4-5
DWYER Differential Pressure Switch, ± 32 psi (2.2 bar) Repeatability, Set Point (increasing) 120-250 psid (8.3-17.2 bar), Set Point (decreasing) 35-120 psid (2.4-8.3 bar). show more
  • Pressure Range - psid: 35 to 250 (bar: 2.4 to 17.2 , kPa: 241.3 to 1,723)
10 In Stock
$734.00CAD
Does not ship to United States

View Details

Specifications

Brand

Adjustment Type

  • Field Adjustable

Applications

  • Combustible Gases

Approvals & Certifications

  • CE

Electrical - Free Leads

  • 24 AWG x 12˝ (30.5 cm) Free Leads

Electrical Rating

  • 3 VA, 0.25 A at 120 Vac
  • 5 VA, 0.25 A at 175 Vdc

Enclosure, Body Material

  • Aluminum

NPT Connection

  • 1/4” NPT Female

Operating Temperature

  • -53° to 107° C (-65° to 225° F)

Process Connection Material

  • Aluminum

Proof Pressure

  • bar: 137.9
  • kPa: 13,790
  • psig: 2,000

Set Point - Decreasing

  • bar: 0.138 to 8.274
  • kPa: 13.79 to 827.4
  • psig: 2 to 120

Set Point - Increasing

  • bar: 0.483 to 10.34
  • kPa: 48.26 to 1,034
  • psig: 7 to 250

Switch Type

  • SPDT

System Pressure

  • bar: 413
  • kPa: 41,368
  • psig: 6,000

Documentation

Catalogs

Manuals

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