DPF266 Titan Differential Pressure Switch

Brand: Pyropress Engineering Company Limited
Pyropress Differential Pressure Switch, DPF266
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DPF266 Titan Differential Pressure Switch

Brand: Pyropress Engineering Company Limited
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This range has been used to monitor very small changes in vacuums and has been specified extensively for offshore applications.

Incorporating a diaphragm and two sealing Belloframs the switch offers reliable switching action when a differential pressure is required to be sensed. They can, by venting either the HP or LP connection, be used as a low pressure or vacuum switch. Resistors can be incorporated for ‘end of line’ and short circuit monitoring.
Features
  • 316 stainless steel or black anodised aluminium switchcase to IP66 standard
  • Settings from 0.25 mbar to 8.5 bar
  • Wetted parts NACE MR-01-75 compliant
  • Internal adjustment scale
  • Single or dual microswitch option
  • SIL2 - IEC61508 proven reliability
  • ATEX/IECEx Flameproof version CE II2G Exd IIB + H2 T6...T2 Gb Ta -60° to +75° C ... 90° C
  • ATEX/IECEx Intrinsically safe version CE II1G Exia IIC T6...T2 Ga Ta -50° to +78° C ... 128° C

Specifications

Brand

Accuracy

  • ± 1 % at 20° C

Set Point - Decreasing

  • mbar: 0.25 to 8,500
  • Pa: 25 to 850,000
  • psi: 0.0036 to 123.3

Set Point - Increasing

  • mbar: 0.25 to 8,500
  • Pa: 25 to 850,000
  • psi: 0.0036 to 123.3

Switch Type

  • 1 or 2 x SPDT

Electrical Connectors

  • 1/2” NPT Adaptor
  • M20 Leave Blank
  • M25

Microswitch Rating

  • 5 A @ 250 Vac Resistive
  • 2 A at 250 Vac Inductive
  • 3 A at 30 Vdc Inductive
  • 5 A @ 30 Vdc Resistive

Deadband

  • 0.05 to 400 mbar G

Wetted Materials

  • 316 Stainless Steel

Enclosure, Body Material

  • Switchcase & Cover: Black Anodised Aluminum
  • Switchcase & Covers: 316 Stainless Steel

Diaphragm Material

  • Nitrile
  • Viton

NPT Connection

  • 1/2” NPT Female
  • 1/4” NPT Female

BSP Connection

  • 1/2” BSPP Female
  • 1/4” BSPP Female

Operating Temperature

  • -40° to 150° C (-40° to 302° F)

Approvals & Certifications

  • SIL 2
  • ATEX/IECEx

NACE & NIST

  • NACE MR-0175

Environmental Protection

  • IP66

Ambient Temperature Range

  • -50° to 85° C (-58° to 185° F)

Storage Temperature

  • -60° to 85° C (-76° to 185° F)

  • Offshore Applications

Documentation

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