Manual Regulating Valve
Manual regulating valves are indispensable components in ventilation, air conditioning and air purification projects in industrial plants and civil buildings. They are generally used in air conditioning and ventilation system pipes to adjust the air volume of branch pipes. They can also be used for mixing and regulating fresh air and return air.
I. Product Features
(1) The pipe size of this regulating valve is the same as the rectangular air duct size specified in the ventilation duct standard.
(2) The blades of this regulating valve are split-open type. As a regulating valve in ventilation, air conditioning and air purification systems, it is superior to parallel type valves (i.e., sequential opening type).
(3) The closed split-open multi-leaf regulating valve can be used for both regulation and sealing, and is suitable for systems with opening requirements. For example, the fresh air valve and exhaust valve on the air conditioning system are also suitable for systems that only use it as a regulating valve or have both sealing and regulation requirements, such as primary and secondary return air valves, etc.
(4) Through test measurements, the regulating valve has good air tightness, its relative air leakage is about 5%, and its regulating performance is good.
II. Structural Features
(1) The regulating valve has four uniform blade widths. The blades are diamond-shaped and double-bladed. Soft overlap is used between the blades, so the sealing performance is good.
(2) A 30 mm thick insulation layer is made inside the connecting rod of the regulating valve. The insulation material is polystyrene foam. If the four sides of the valve are required to be insulated in the ventilation and air-conditioning system, only the other three sides need to be insulated at the construction site, so the installation is convenient and the appearance is beautiful.
(3) The assembly method between the blade shaft and the frame adopts a simple bearing, which is light, flexible, stable, and prevents local jamming.
(4) The regulating valve is divided into manual and electric types. According to the materials used, it is divided into four types: iron plate, galvanized plate, aluminum alloy plate, and stainless steel plate. The valve body structure and specifications are the same.