In HVAC systems, there are many different parameters that are commonly measured for system performance or building comfort. Some of the most commonly measured HVAC system parameters are temperature, air velocity, humidity and static pressure. Of those parameters, static pressure is extremely important in terms of system performance. Static pressure indicates how hard the HVAC system has to work to move air through the building or how much resistance to flow exists. The higher the static pressure, the harder the system has to work to move air through the building. Continue reading “Static Pressure in HVAC Systems”
Dwyer Instruments, Inc. offers several flow measuring products that use a thermal sensing element.
Thermal dispersion flow sensors use a temperature element that is heated up beyond the media temperature. Based on calorimetry, the flow moving past the sensor will have a cooling effect that is directly proportional to the flow velocity. The heat is convected from the heated probe surface to the boundary layer of the fluid flowing over the heated surface. Continue reading “Thermal Dispersion Flow Switches”
Brought to you by the W.E. Anderson division of Dwyer Instruments, the Series WE20 is a highly configurable line of butterfly valves designed to meet all of your specific demands. Our butterfly valves can be configured for manual operation, or for use with electric or pneumatic actuators. Continue reading “Butterfly Valves – Configurable to Meet Your Demands”
High quality, well-functioning test equipment is an important part of any balancer’s toolbox. As a balancer, your customers rely on you to keep their buildings comfortable, to help them meet federal building regulations, and to help them save energy and money. Your customers expect you to provide accurate readings, and in order to do so, you need to use reliable, calibrated test equipment. By regularly calibrating your equipment, you will be able to provide your customers with the excellent service they expect. Continue reading “Calibration Service Tiers”
Radon is a naturally occurring radioactive gas that comes from the decay of Uranium. It is often found in the rock and soil upon which many residential and commercial buildings are built. Continue reading “Dwyer Digital Manometer Used to Size Radon Mitigation Fans”