Electrically adjustable valve; Double-leaf air volume control valve with接管 dimensions identical to the rectangular duct dimensions specified in the national ventilation pipeline standardization. The regulating valve is installed on the supply and return air ducts of ventilation and air conditioning systems, typically in an open state. During a fire, it closes when the smoke temperature inside the pipeline reaches 70 degrees, and within a certain time frame, it can meet the requirements for smoke leakage quantity and fire resistance integrity, serving as a smoke and fire barrier.
Features of Electrically Adjustable Valve
1. The接管 size of the multi-blade air volume control valve is the same as the rectangular duct size specified in the ventilation pipeline standardization regulations.
2. The regulating valve blades are of the double-leaf design, serving as regulating valves in ventilation, air conditioning, and air purification systems, and are superior to parallel-type valves (i.e., direct-acting valves).
3. The enclosed multi-blade regulating valve can serve both as a regulator and as a closure, suitable for systems requiring opening. For example, it is applicable to fresh air valves and parallel air valves in HVAC systems, as well as for systems that require both sealing and regulation, such as primary and secondary return air valves.
4. Tested and determined, the regulating valve has good airtightness, with a relative air leakage rate of around 5%, and excellent regulating performance.