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VF266 Titan Vacuum Pressure Switch
Brand: Pyropress Engineering Company LimitedThis range has been used to monitor filter blockage and air movement through ducting and has been specified extensively for offshore applications.
Incorporating a diaphragm and two sealing Belloframs when vacuum is required to be sensed the switch offers reliable switching action. 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 to -950 mbar
- 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
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Specifications
Accuracy
- ± 1 % at 20° C
Set Point - Increasing
- mbar: -950 to -0.25
- Pa: -95,000 to -25
- psi: -13.8 to -0.0036
Set Point - Decreasing
- mbar: -950 to -0.25 Mbar
- Pa: -95,000 to -25
- psi: -13.8 to -0.0036
Switch Type
- 1 or 2 x SPDT
Operating Temperature
- -40° to 150° C (-40° to 302° F)
Operating Pressure
- psi: -14.5 to 203 (bar: -1 to 14, kPa: -100 to 1,400)
NPT Connection
- 1/2” NPT Female
- 1/4” NPT Female
BSP Connection
- 1/2” BSPP Female
- 1/4” BSPP Female
Microswitch Rating
- 2 A at 250 Vac Inductive
- 3 A at 30 Vdc Inductive
- 5 A at 250 Vac or 30 Vdc Resistrive
Electrical Connectors
- 1/2” NPT Adaptor
- M20 Leave Blank
- M25
Deadband
- 0.05 to 90 Mbar G
Enclosure, Body Material
- Switchcase & Cover: Black Anodised Aluminum
- Switchcase & Covers: 316 Stainless Steel
Wetted Materials
- 316 Stainless Steel
Diaphragm Material
- Nitrile
- Viton
Ambient Temperature
- -50° to 85° C (-58° to 185° F)
Storage Temperature
- -60° to 85° C (-76° to 185° F)
Approvals & Certifications
- SIL 2
- ATEX/IECEx
NACE & NIST
- NACE MR-0175
Environmental Protection
- IP66