Dwyer Instruments PRL-156-P1 Pressure Switch
The Dwyer Instruments PRL-156-P1 Pressure Switch is a heavy-duty differential pressure switch designed for critical HVAC and process monitoring applications where system safety and precision are paramount. This robust unit features an adjustable 1 to 30 inch W.C. range, making it ideal for monitoring pressure drops across filters, coils, and fans in commercial air handling systems. Engineered with a manual reset on decrease mechanism, this switch ensures that technicians must physically inspect the equipment before restarting the system, providing an essential layer of protection for air-starved environments. The PRL-156-P1 is equipped with two SPST switches (Single Pole Single Throw), allowing for versatile control signaling or redundant alarm outputs. Built with a die-cast aluminum housing and specialized wetted materials, it provides reliable low differential pressure detection for air and compatible non-combustible gases. Designed for vertical mounting, it maintains high accuracy and repeatability in challenging mechanical room environments.
Key Benefits
- Mechanical Manual Reset: Ensures system lockout on pressure decrease, requiring professional intervention to reset after a fault.
- Broad Operating Range: Adjustable 1 to 30" W.C. set point provides flexibility for various industrial pressure switch applications.
- Dual SPST Switching: Offers two independent circuits for simplified integration with building automation systems and local alarms.
- Durable Construction: Features a rugged metallic enclosure suitable for demanding HVACR contractor environments.
- Accurate Monitoring: Specifically calibrated for differential pressure sensing in air-handling units and ventilation ducts.
Common Questions
What media is compatible with the Dwyer PRL-156-P1?
This switch is designed for use with air and other non-combustible, compatible gases typical in HVAC ductwork and industrial filtration systems.
Does this switch reset automatically?
No, the PRL-156-P1 features a manual reset. Once the pressure falls below the set point, the internal switch locks and must be manually cleared by a technician.
How do the dual SPST switches function?
The unit contains two separate SPST contacts that actuate simultaneously, allowing you to trigger a remote alarm and shut down a motor circuit on the same device.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $719.99
-65%$719.99
$252.00Dwyer Instruments PRL-156-P1 Pressure Switch
The Dwyer Instruments PRL-156-P1 Pressure Switch is a heavy-duty differential pressure switch designed for critical HVAC and process monitoring applications where system safety and precision are paramount. This robust unit features an adjustable 1 to 30 inch W.C. range, making it ideal for monitoring pressure drops across filters, coils, and fans in commercial air handling systems. Engineered with a manual reset on decrease mechanism, this switch ensures that technicians must physically inspect the equipment before restarting the system, providing an essential layer of protection for air-starved environments. The PRL-156-P1 is equipped with two SPST switches (Single Pole Single Throw), allowing for versatile control signaling or redundant alarm outputs. Built with a die-cast aluminum housing and specialized wetted materials, it provides reliable low differential pressure detection for air and compatible non-combustible gases. Designed for vertical mounting, it maintains high accuracy and repeatability in challenging mechanical room environments.
Key Benefits
- Mechanical Manual Reset: Ensures system lockout on pressure decrease, requiring professional intervention to reset after a fault.
- Broad Operating Range: Adjustable 1 to 30" W.C. set point provides flexibility for various industrial pressure switch applications.
- Dual SPST Switching: Offers two independent circuits for simplified integration with building automation systems and local alarms.
- Durable Construction: Features a rugged metallic enclosure suitable for demanding HVACR contractor environments.
- Accurate Monitoring: Specifically calibrated for differential pressure sensing in air-handling units and ventilation ducts.
Common Questions
What media is compatible with the Dwyer PRL-156-P1?
This switch is designed for use with air and other non-combustible, compatible gases typical in HVAC ductwork and industrial filtration systems.
Does this switch reset automatically?
No, the PRL-156-P1 features a manual reset. Once the pressure falls below the set point, the internal switch locks and must be manually cleared by a technician.
How do the dual SPST switches function?
The unit contains two separate SPST contacts that actuate simultaneously, allowing you to trigger a remote alarm and shut down a motor circuit on the same device.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Dwyer Instruments PRL-156-P1 Pressure Switch is a heavy-duty differential pressure switch designed for critical HVAC and process monitoring applications where system safety and precision are paramount. This robust unit features an adjustable 1 to 30 inch W.C. range, making it ideal for monitoring pressure drops across filters, coils, and fans in commercial air handling systems. Engineered with a manual reset on decrease mechanism, this switch ensures that technicians must physically inspect the equipment before restarting the system, providing an essential layer of protection for air-starved environments. The PRL-156-P1 is equipped with two SPST switches (Single Pole Single Throw), allowing for versatile control signaling or redundant alarm outputs. Built with a die-cast aluminum housing and specialized wetted materials, it provides reliable low differential pressure detection for air and compatible non-combustible gases. Designed for vertical mounting, it maintains high accuracy and repeatability in challenging mechanical room environments.
Key Benefits
- Mechanical Manual Reset: Ensures system lockout on pressure decrease, requiring professional intervention to reset after a fault.
- Broad Operating Range: Adjustable 1 to 30" W.C. set point provides flexibility for various industrial pressure switch applications.
- Dual SPST Switching: Offers two independent circuits for simplified integration with building automation systems and local alarms.
- Durable Construction: Features a rugged metallic enclosure suitable for demanding HVACR contractor environments.
- Accurate Monitoring: Specifically calibrated for differential pressure sensing in air-handling units and ventilation ducts.
Common Questions
What media is compatible with the Dwyer PRL-156-P1?
This switch is designed for use with air and other non-combustible, compatible gases typical in HVAC ductwork and industrial filtration systems.
Does this switch reset automatically?
No, the PRL-156-P1 features a manual reset. Once the pressure falls below the set point, the internal switch locks and must be manually cleared by a technician.
How do the dual SPST switches function?
The unit contains two separate SPST contacts that actuate simultaneously, allowing you to trigger a remote alarm and shut down a motor circuit on the same device.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
