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Series AP Diaphragm Operated Pressure Switch
Brand: Dwyer Instruments, LLCReliable and convenient, the Series AP Diaphragm Operated Pressure Switch is a compact switch for instrument air or other low pressure applications.
Visible set point and external adjustment add convenience.
Used on air, non-corrosive gas or liquid service compatible with wetted parts. Units are available in weather-proof and explosion-proof housing.
Features- Explosion-proof and weatherproof housing provides device protection for outdoor use or harsh environment operation
- External switch set point adjustment reduces set-up time
Specifications
Adjustment Type
- External Screwdriver Slot
Approvals & Certifications
- CE
- FM
- UL
Conduit Connection
- 7/8” Hole for 1/2” Conduit Hub
Deadband
- psig: 0.4 to 7 (kPa: 2.7 to 48, bar: 0.027 to 0.48)
Electrical Connectors
- Screw Terminal
Electrical Rating
- Mercury Switch: 2 A at 240 Vac/Vdc
- Mercury Switch: 4 A at 120 Vac
- Snap Switch: 0.25 A at 240 Vdc
- Snap Switch: 0.5 A at 120 Vdc
- Snap Switch: 15 A at 120 Vac
- Snap Switch: 8 A at 240 Vac
Environmental Protection
- Explosion-proof
- Weatherproof
NPT Connection
- 1/4” NPT Female
Sensor Orientation
- Vertical for Mercury Switch Models
Set Point - Decreasing
- bar: 0.07 to 8.62
- Inches Hg: -10 to 0 psi
- Inches WC: 0 to 50
- kPa: 7 to 862
- psig: 1 to 125
Set Point - Increasing
- bar: 0.07 to 8.62
- Inches Hg: -10 to 0 psi
- Inches WC: 0 to 50
- kPa: 7 to 862
- psig: 1 to 125
Switch Type
- SPDT Mercury Switch or Snap Switch
System Pressure
- bar: 1.03 to 11.03
- kPa: 103.4 to 1,103
- psig: 15 to 160
Temperature Range
- -35° to 66° C (-30° to 150° F)
Wetted Materials
- 316 Stainless Steel
- Nylon Reinforced Buna-N
- PTFE
- Steel
- Low Pressure Applications
- Instrument Air
