D270 - PP Dampers & 280 Controllers Make: Syannlab Solutions Pvt. Ltd. These dampers are crafted from high-grade, UV-treated polypropylene, ensuring durability and suitability for outdoor and rooftop applications. The material is meticulously chosen to resist wear and tear from harsh environments. Unlike traditional dampers, these units are designed for minimal airflow obstruction. They allow smooth air passage while operating efficiently and quietly, minimizing pressure drops and turbulence. This makes them ideal for applications demanding high airflow rates with low noise levels. Additionally, the dampers offer exceptional leak-proof performance when closed. For optimized space usage and to minimize self-damage under pressure, the dampers come in both cylindrical and rectangular shapes. These shapes also enhance airflow and reduce friction, resulting in improved overall system performance and damper durability. The units are easy to stack, store, and transport, boasting a sleek and modern design. For manual operation before actuator installation, the dampers are conveniently hand-operable. To ensure the highest level of quality and safety, damper manufacturers should possess ISO 9001, 14001, and 45001 certifications. These certifications demonstrate the manufacturer's dedication to excellence in quality management systems, environmental responsibility, and occupational health and safety practices. D280- Pressure Controller The duct pressure controller is a device that accurately and continuously modulates the duct pressure inside both the supply and the exhaust air ducts using differential non flow-thru pressure sensor. It should have two line illuminated LCD display. It should work in 230V, 1A single phase power supply unit. This controller must have range from -250Pa to 2500Pa or 7000Pa as applicable. It should provide the 0 to 10V DC control signal to actuator and pressure feedback as analogue signal. It should provide 4 to 20mA control signal to VFD and differential pressure measurement output. This device should have selectable pressure units as Pa, inWC, mmWC, kPa, mbar, psi. It must have a zero-setting manual push button. Its response time must be selectable with menu from 2 to 20 seconds. Entire controller must be housed in a ABS IP54 rated enclosure. To ensure the highest level of quality and safety, the controller meets the CE requirements of 30 & 35 derivatives. The device manufacturer should possess to ISO 9001, 14001 & 45001 certificates, further demonstrating their commitment to excellence.