Dwyer Air Flow Switch

The series avfs adjustable air flow switch is specifically designed to monitor air flow in ducts and provides a 3 a contact output to indicate a change or loss of flow.

Dwyer air flow switch.

Applications include chillers hot water heaters and liquid transfer systems. The official dwyer instruments inc. Most switches are single pole double throw often referred to as spdt. Dwyer meters and totalizers display flow rate.

Dwyer instruments offers many electrical switch products that make or break a contact based on sensing a parameter such as pressure temperature level and so on. Vane fits 6 or larger ducts. Site to investigate learn and buy online pressure flow level and temperature gas sensing and air velocity instrumentations and controls. The avfs provides a 5 set point repeatability across a full scale range of 1 10 m s 197 1969 fpm and includes a mounting bracket for quick duct mounting.

This category contains sensors with an electrical contact output at a specific air flow rate. Atex iecex approved adps adjustable differential pressure switch is designed for pressure vacuum and differential pressure applications. Quality features include a rugged die cast body stainless steel vane and spdt snap switch. Applications include low air flow condition duct alarm fan monitoring damper feedback air handlers and air flow proving in hvac systems.

The model 530 air flow switch provides excellent sensitivity and reliability at a very reasonable price. Thermal flow switches are sensors with an electrical contact output at a specific flow rate. The weatherproof uv resistant large dual line display allows for more information making it easier to read and simpler to program. The series avfs adjustable air flow switch is specifically designed to monitor air flow in ducts and provides a 3 a contact output to indicate a change or loss of flow.

This type of switch has one normally open contact and one normally closed contact. Adjustable from 400 1600 fpm stainless steel vane. Hazardous rated markets. The 1823 in flame proof enclosure.

Flow indicators controllers this category contains remote flow indicators and controllers for use with flow transmitters. Mounting is fast and simple with only two screws needed. Atex iecex approved 1823 differential pressure switch which are ideal for low pressure hazardous area applications.