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204/208/209 Pressure Switch
Brand: Delta Mobrey
The model 204 Pressure Switch is suitable for setpoints between psi: -14.5 (kPa: -100, bar: -1) and psi: 217.6 (kPa: 1,500, bar: 15), with maximum working pressures up to psi: 2,988 (kPa: 20,600, bar: 206).
The model 208 Pressure Switch is suitable for setpoints between psi: -14.5 (kPa: -100, bar: -1) and psi: 217.6 (kPa: 1,500, bar: 15), with maximum working pressures limited by the flange rating.
The model 209 Pressure Switch is suitable for setpoints between psi: -14.5 (kPa: -100, bar: -1) and psi: 217.6 (kPa: 1,500, bar: 15), with maximum working pressures up to psi: 290.1 (kPa: 2,000, bar: 20).
The models 204/208/209 Performance Series pressure switches utilise a stainless steel diaphragm based sensor. This, when coupled with a precision stainless steel mechanism designed to minimise friction in the moving parts, helps deliver the market leading performance customers have come to expect from the series.
Features- Precision stainless steel mechanism for arduous atmospheres and high humidity
- Set point adjustable over whole range against calibrated scale with tamperproof adjuster
- Weatherproof and Flameproof models ATEX and IECEx
- Safety vented or blow out device as standard
- NACE MR-01-75 compatibility
- Hermetically sealed microswitch option
- High Overload capacity (204)
- Open diaphragm (208)
- Hygiene connection (209)
- Ranges available up to 15 bar (200 psi) Static Pressure up to 206 bar (3,000 psi)
Specifications
Brand
Adjustment Type
- Set Point Adjustment
Ambient Temperature Range
- -25° to 60° C (-13° to 140° F)
Applications
- Chemical Industry
- Food Industry
- Oil & Gas Applications
- Petrochemical
- Power
- Refining
Approvals & Certifications
- ATEX Ex db IIC T4 to T6, Flameproof
- CE
- CSA
- Ex II 2 GD, II 3 GD
- IEC Ex: Ex db IIC T4 & T6 Gb
- LVD 2014/35/EU
- PED 97/23/EC
BSP Connection
- 1/4” BSPT Female - Model 204
Cable Entry
- 1/2” NPT Female
- 3/4” NPT Female
- Cable Gland & Back Nut: M20
- M20 x 1.5
Conduit Connection
- 3/4” Conduit
Diaphragm Material
- 316 Stainless Steel - Models 204 & 209
- Nickel Alloy (Monel) - Model 204
Electrical - Free Leads
- 14 AWG, 2.5 mm²
Electrical Connectors
- Terminal Block
Electrical Contacts
- Gold Alloy Contacts for Low Voltage Switching
- Gold-Plated Silver
Electrical Rating
- CSA & IEC: 1 A at 125 Vac
- CSA: 1 A at 30 Vac/dc
- CSA: 100 mA at 30 Vdc
- CSA: 2 A at 30 Vdc
- CSA: 5 A at 110/250 Vac
- CSA: 5 A at 30 Vdc
- IEC 947-5-1 / EN 60947-5-1: 0.22 / 0.1 A at 125/250 Vdc
- IEC 947-5-1 / EN 60947-5-1: 0.3 A at 120 Vac
- IEC 947-5-1 / EN 60947-5-1: 0.6 / 0.3 A at 120/240 Vac
Enclosure Finish
- Light Gray Epoxy Resin Paint
Enclosure, Body Material
- Flameproof: Die Cast Aluminum-silicon Alloy
- Flameproof: Sand Cast in Grey Iron
- Weatherproof & Exn: Austenitic Stainless Steel
- Weatherproof & Exn: Die Cast Zinc Alloy
Environmental Protection
- Flameproof Ex d
- IP66
- NEMA 4
- NEMA 4X
- Weatherproof
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150# (ANSI B16.5) - Model 208
- 2” (DN 50) - PN 16 [EN 1092-1 (BS4504)] - Model 208
Flange Type
- Raised Face (RF)
Materials of Construction
- Mounting Bracket: Stainless Steel
Mounting
- 2” Pipe Mounting Bracket
- Direct Mounting
Mounting Position
- Vertical
NPT Connection
- 1/2”-14 Female NPT - Model 204
- 1/2”-14 Male NPT - Model 204
- 1/4”-18 Female NPT - Model 204
Operating Pressure
- Maximum psi: 2,988 (kPa: 20,600, bar: 206)
Pipe Connection
- 2” Pipe (DN 50) - Model 209
- 2-1/2” Pipe (DN 65) - Model 209
Process Connection Material
- 316 Stainless Steel - Models 204 & 209
Process Temperature
- 0° to 120° C (32° to 248° F) - Max.
Repeatability
- Set Point Repeatability: ± 1 % of Span at 20° C (68° F) Ambient
Seat / Seal Material
- O-Ring Seal: Nitrile - Model 204
- O-Ring Seal: Viton - Models 204 & 209
- Seal: PTFE - Model 208
Sensor, Probe Material
- Stainless Steel
Service
- Oxygen Service
Set Point - Decreasing
- bar: -1 to 15
- Inches Hg: -30 to 0
- kPa: -100 to 1,500
- mbar: -1,000 to 350
- psi: -14.5 to 200
Set Point - Increasing
- bar: -1 to 15
- Inches Hg: -30 to 0
- kPa: -100 to 1,500
- mbar: -1,000 to 350
- psi: -14.5 to 200
Static Pressure
- psi: 0 to 3,000 (kPa: 0 to 20,600, bar: 0 to 206)
Storage Temperature
- -25° to 60° C (-13° to 140° F)
Switch Type
- DPDT Hermetically Sealed & Snap-Action Microswitch
- SPDT Hermetically Sealed & Snap-Action Microswitch
System Pressure
- bar: 206
- kPa: 20,684
- psi: 3,000
Voltage
- Impulse to Withstand Voltage Across Contacts: 0.5 kV
- Impulse to Withstand Voltage Across Contacts: 0.8 kV
- Insulation Voltage: 125 V
- Insulation Voltage: 250 V
- Withstand Voltage: 1.2 kV - Micro Switch
- Withstand Voltage: 2 kV between Live Parts & Earth/Ground
- Withstand Voltage: 500 V between Open Contacts
Wetted Materials
- 316 Stainless Steel
- Oil & Gas
- Chemical
- Petrochemical
- Refining
- Power
- Food Industry
