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PF41 / PF42 Hermes Pressure Switch
Brand: Pyropress Engineering Company LimitedThe 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
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