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Marine Service Offshore Pressure Switch

Brand: ASCO
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These pressure switches are specially engineered for the harsh environment of offshore applications.

They are highly reliable and ideally suited for use on platform panelboards, oil/gas wellheads and emergency shutdown systems.
Features
  • Rated Overrange Pressure: 250 psi
  • Minimum Burst Pressure: 5000 psi
  • Deadband: Factory set
  • 72" continuous leads, connection anywhere in panel
  • Environmentally sealed against dust, water, oil and salt spray as per ASTM B117 for offshore equipment. Sealing integrity is from -40° F to 250° F
  • Snap Switch Electrical Rating:
    • 24 Vdc - 5 amps resistance
    • 28 Vdc - 3 amps resistance
    • 125 Vac - 10 amps resistance
    • 250 Vac - 5 amps resistance
  • Vented construction for stable set points throughout operating range
  • Vibration and shock resistant to 10 Gs
  • Precision SPDT electrical switch, 1/4" NPT internal process connection

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Specifications

Brand

Adjustment Type

  • Factory Set (Pre-Set)

Ambient Temperature Range

  • -20° to 65° C (-4° to 140° F)

Approvals & Certifications

  • ATEX
  • CSA
  • UL

Burst Pressure

  • psi: 5,000

Deadband, Approximate

  • Factory Set (Pre-Set)

Diaphragm Material

  • Fluorocarbon (FPM)

Electrical - Free Leads

  • 72” (182 cm) Free Leads

Electrical Connectors

  • 1/2” NPT Male

Electrical Rating

  • 10 A at 125 Vac
  • 3 A at 28 Vdc
  • 5 A at 24 Vdc
  • 5 A at 250 Vac

Enclosure, Body Material

  • 316 Stainless Steel

Environmental Protection

  • IP66
  • NEMA 4X, 7 / IP66
  • NEMA 7

NPT Connection

  • 1/4” NPT Female

O-Ring Material

  • Fluorocarbon (FPM)

Operating Temperature

  • -40° to 121° C (-40° to 250° F)

Process Connection Material

  • 316 Stainless Steel

Process Temperature

  • -20° to 94° C (-4° to 200° F)

Proof Pressure

  • bar: 17.24
  • kPa: 1,724
  • psig: 250

Set Point - Decreasing

  • bar: 0 to 1.7
  • bar: 1.03 to 5.86
  • bar: 1.7 to 4.46
  • bar: 4.46 to 7.9
  • kPa: 0 to 170
  • kPa: 103.42 to 586
  • kPa: 170 to 446
  • kPa: 446 to 790
  • psig: 0 to 10
  • psig: 10 to 50
  • psig: 15 to 85
  • psig: 50 to 100

Set Point - Increasing

  • bar: 0.68
  • kPa: 68.94
  • psig: 10

Switch Type

  • SPDT

System Pressure

  • bar: 0 to 17.24
  • kPa: 0 to 1,724
  • psig: 0 to 250

Documentation

Data Sheets

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