PF41 / PF42 Hermes Pressure Switch

Brand: Pyropress Engineering Company Limited
Pyropress Pressure Switch, PF41 / PF42 Hermes
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PF41 / PF42 Hermes Pressure Switch

Brand: Pyropress Engineering Company Limited
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The latest innovation to our 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). 

One of the benefits of the Hermes range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.
Features
  • Compact 316 stainless steel construction to IP66 & IP67 standards
  • Up to 1,000 Bar working pressure
  • Pressure settings from 1 to 800 bar
  • Wetted parts traceable to NACE MR-01-75
  • 1 metre of cable standard (alternative lengths available on request)
  • ATEX/IECEx certified Exd
  • Hermetically sealed switching
  • Shock and vibration tested
  • ATEX/IECEx Flameproof version (Gas) CE II2G Exd IIC T6 -50° to 71° C, T5 - 50° to 86° C, T4 -50° to 100° C

Specifications

Brand

Accuracy

  • ± 1 % at 20° C

NPT Connection

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

BSP Connection

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

Switch Type

  • 1 or 2 x SPDT

Electrical Connectors

  • 1/2” NPT Adaptor
  • M20 Leave Blank

Microswitch Rating

  • 3 A at 30 Vdc Resistive & Inductive
  • 5 A at 250 Vac Resistrive & Inductive

Deadband

  • High Pressure Range: 2 to 85 bar
  • Medium Pressure Range: < 0.6 to < 5 bar

Enclosure, Body Material

  • Switchcase & Covers: 316 Stainless Steel

Diaphragm Material

  • Nitrile
  • Viton

Wetted Materials

  • 316 Stainless Steel
  • Monel 400

Piston Material

  • 316 Stainless Steel

O-Ring Material

  • Nitrile
  • Viton

Process Connection Material

  • 316 Stainless Steel
  • Monel 400

Operating Temperature

  • -30° to 150° C (-22° to 302° F)

Maximum System Pressure

  • For High Pressure Range - psi: 14,503 (bar: 1,000, kPa: 100,000)
  • For Medium Pressure Rang - psi: 725.2 (kPa: 5,000, bar: 50)

Set Point - Increasing

  • High Pressure Range - bar: 5 to 800
  • High Pressure Range - kPa: 500 to 80,000
  • High Pressure Range - psi: 72.5 to 11,603
  • Medium Pressure Range - bar: 1 to 24
  • Medium Pressure Range - kPa: 100 to 2,400
  • Medium Pressure Range - psi: 14.5 to 348.1

Set Point - Decreasing

  • High Pressure Range - bar: 5 to 800
  • High Pressure Range - kPa: 500 to 80,000
  • High Pressure Range - psi: 72.5 to 11,603
  • Medium Pressure Range - bar: 1 to 24
  • Medium Pressure Range - kPa: 100 to 2,400
  • Medium Pressure Range - psi: 14.5 to 348.1

Ambient Temperature

  • -40° to 86° C (-40° to 186.8° F)

Storage Temperature

  • -50° to 85° C (-60° to 185° F)

NACE & NIST

  • NACE MR-0175

Approvals & Certifications

  • SIL 2
  • ATEX/IECEx
  • CE Marked

Environmental Protection

  • IP66
  • IP67

Documentation

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