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VM2/VM4 Pressure Switch
Brand: Delta Mobrey
Features
- Compact and rugged design
- ATEX Flameproof EExd IIC 2 GD
- Stainless steel enclosure as standard
- All-welded construction for process connection and diaphragm - reduced risk of leakage under extreme conditions
- Ranges available between psi: 4 (kPa: 25, bar: 0.25) and psi: 10,000 (kPa: 70,000, bar: 700)
- Variety of wetted parts including NACE MR-01-75 compatible option
- Field adjustable set point
Specifications
Brand
Adjustment Type
- Field Adjustable Set Point
Ambient Temperature Range
- -25° to 60° C (-13° to 140° F) - Model VM4 (Limited by Materials used in Sensing Element)
- -40° to 80° C (-40° to 176° F) - Model VM2 (Intermittently down to -60° C (-76° F) - ATEX)
- -40° to 85° C (-40° to 185° F) - Model VM2 (For Weatherproof Version)
Applications
- Fuel & Lubrication Systems as Found on Gas Turbines, Compressors & Other Rotating Machinery
- Valve Actuators
- Water or Gas Deluge Fire Protection Systems
- Wellhead Control Safety Shutdown Systems
Approvals & Certifications
- UKAS
- ATEX Directive 94/9/EC
- BSI Kitemark
- CE
- CSA
- EMC 89/336/EEC
- ISO 9001
- LVD 73/23/EC Amended by 93/68/EEC
- MSD 89/392/EEC
- PED 97/23/EC
- UL
BSP Connection
- 1/4” BSPT Female
Cable Entry
- 1/2” NPT Female
- M20 x 1.5
Diaphragm Material
- 316 Stainless Steel
- Nickel Alloy (Monel)
Electrical - Free Leads
- 14 AWG, 2.5 mm²
Electrical Connectors
- Terminal Strip
Electrical Contacts
- Gold Alloy
Electrical Rating
- 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
- UL & CSA: 0.1 A at 30 Vdc
- UL & CSA: 1 A at 125 Vac
- UL & CSA: 2 A at 30 Vdc
- UL & CSA: 5 A at 110/250 Vac
Enclosure, Body Material
- Stainless Steel
Environmental Protection
- Flameproof EEx IIC 2 GD
- Intrinsically Safe
- IP66
- NEMA 4X
- Weatherproof
Mounting
- Via 2 Integral Cast Lugs with Holes to Suit M5 Screws
NACE & NIST
- NACE MR-0175
Name Plate, Tag Material
- Stainless Steel
NPT Connection
- 1/4”-18 NPT Female
Operating Pressure
- psi: 0 to 15,000 (kPa: 0 to 100,000, bar: 0 to 1,000) - Max.
Process Connection Material
- 316 Stainless Steel
- Nickel Alloy (Monel)
Repeatability
- Set Point Repeatability: ± 1 % of Adjustable Range
Set Point - Decreasing
- bar: 0.25 to 700
- kPa: 25 to 70,000
- psi: 4 to 10,000
Set Point - Increasing
- bar: 0.25 to 700
- kPa: 25 to 70,000
- psi: 4 to 10,000
Switch Type
- DPDT
- SPDT
System Pressure
- bar: 1034
- kPa: 103,400
- psi: 15,000
Voltage
- Impulse to Withstand Voltage Across Contacts: 0.8 kV
- Impulse to Withstand Voltage Across Contacts: 500 V
- Insulation Voltage: 125 V
- Insulation Voltage: 250 V
- Wellhead control safety shutdown systems
- Water or gas deluge fire protection systems
- Fuel and lubrication systems, as found on gas turbines, compressors and other rotating machinery
- Valve Actuators