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PF60 Perseus Metal Diaphragm Pressure Switch

Brand: Pyropress Engineering Company Limited

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

Microswitches can be requested for single or dual simultaneous operation (DPDT switching). Environmentally sealed or hermetically sealed microswitch options are available. 

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation. The housing is available with one or two electrical entries.
Features
  • 316 Stainless steel or black anodised aluminium switchcase to IP66 & IP67 standards
  • Wetted parts NACE MR-01-75 complaint
  • SIL 2 – IEC61508 proven reliability
  • Single or dual microswitch option
  • Setting from 15 to 420 mbar
  • ATEX/IECEx Flameproof version II 2 G Ex db IIC T6...T5 Gb (Tamb -50° C to +75° C...+90° C) (with or without resistors)
  • ATEX/IECEx Intrinsically safe version II 1 G Ex ia IIC T6...T2 Ga (Tamb -50° to 78° C...93° C) (without resistors)
  • ATEX/IECEx Intrinsically safe II 1G Ex ia IIC T5...T2 Ga (Tamb  -50° to +72° C ... 122° C (with resistors)
  • ATEX/IECEx Intrinsically safe version II 1 D Ex ia IIIC T135° C Da (Tamb -50° to 70° C) (with or without resistors)

Specifications

Accuracy

  • ± 1 % at 20° C

Set Point - Increasing

  • bar: 15 to 420
  • kPa: 1,500 to 42,000
  • psi: 217.6 to 6,091.6

Set Point - Decreasing

  • bar: 15 to 420
  • kPa: 1,500 to 42,000
  • psi: 217.6 to 6,091.6

Switch Type

  • 1 or 2 x SPDT

Microswitch Rating

  • 2 A at 250 Vac Inductive
  • 3 A at 30 Vdc Inductive
  • 5 A at 250 Vac / 30 Vdc Resistrive

Deadband

  • 4 to 42 bar

Electrical Connectors

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

BSP Connection

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

NPT Connection

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

Enclosure, Body Material

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

Seat / Seal Material

  • Seal: Nitrile
  • Seal: Viton

Diaphragm Material

  • 316 Stainless Steel
  • Inconel

Process Connection Material

  • 316 Stainless Steel
  • Monel 400

Wetted Materials

  • 316 Stainless Steel

Operating Temperature

  • -50° to 150° C (-58° to 302° F)

Maximum System Pressure

  • psi: 7,251.9 (kPa: 50,000, bar: 500)

Approvals & Certifications

  • SIL 2
  • ATEX/IECEx

NACE & NIST

  • NACE MR-0175

Ambient Temperature Range

  • -40° to 85° C (-40° to 185° F)
  • -50° to 125° C (-58° to 257° F) Optional

Storage Temperature

  • -50° to 85° C (-60° to 185° F)

Environmental Protection

  • IP66
  • IP67
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