When static pressure is created by ventilation fans, Double L's TJW Counterweighted Wall Inlet blades automatically open and allow fresh air to mix with warm air, evenly distributing air throughout the room. Engineered to open at a 0.05 to 0.07 static pressure, each TJW Inlet blade has an adjustable counterweight for balancing multiple inlets at different static pressures. You are able to adjust each blade to lower or higher static pressure for optimal efficiency. When fans stop, the counterweight closes the translucent louver blades.
TJW Wall Vents are a gravity wall inlet that is located between preheated hallways and the animal room. For better air mixing, the TJW louver blades open from the top instead of the bottom, designed to direct airflow towards the ceiling area. Each counterbalance louver blade is translucent or clear to allow more natural light into the room.
TJW Wall Vents are BESS Lab tested for accurate performance and are simple to install and maintain. Easy to clean, TJW Gravity Vents are able to withstand pressure washing. Constructed of heavy-duty PVC corrosion resistant material, the TJW Wall Inlet is available in four different sizes or can be custom built to your desired size.