Protech Systems

The Series ADPS/EDPS/BDPA HVAC Differential Pressure Switches are designed for pressure, vacuum, and differential pressures. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. The ADPS/EDPS/BDPA are available with settings from 0.08 in w.c. (20 Pa) up to 20 in w.c. (5000 Pa). The silicone diaphragm and PA 6.6 body make the series ADPS ideal for use with air and other noncombustible gases. Series EDPS models meet UL508 and are constructed of plenum rated plastics. The series BDPA Adjustable Differential Pressure Alarms offer a versatile range of configurations allowing utilization of their many features including buzzer and LED notification, and battery or line powered. The compact size, adjustment knob and low cost make the ADPS/EDPS/BDPA the perfect choice for HVAC applications. 

We are engaged in offering Back Pressure Switch  to our clients. Our range of all products is widely appreciated by our clients.

An Air Flow Switch is a device designed to monitor and control the flow of air or gas in ventilation, heating, and cooling systems. It detects changes in air movement and triggers an alert or system response if the flow falls below or exceeds preset limits. Commonly used in HVAC systems, clean rooms, and industrial processes, it ensures optimal performance, safety, and energy efficiency. Built with durable materials, the switch offers accurate sensing, easy installation, and reliable operation in harsh environments. It helps protect equipment from overheating or damage due to inadequate airflow.