Manual Sealed Multi-Blade Double-Disc Control Valve, Type 1

Product Specifications:

1. The manual, airtight multi-blade butterfly control valve is specifically designed for ventilation and air conditioning systems with stringent air leakage requirements.

2. It is installed directly on the ductwork to regulate indoor airflow.

3. The control mechanism features a handle that allows for multi-step adjustment of the valve angle, with five adjustable positions.

4. When the valve is closed, the air leakage meets the requirements for sealed-type valves as specified in (JG/T436-2014 Airflow Control Valves for Building Ventilation).

Product Features:

1. The control valve housing and blades are made of galvanized steel; the blades are double-layered galvanized steel, with silicone rubber sealing strips embedded at the tips.

2. The control valve bearings are made of oil-impregnated copper powder metallurgy, requiring no additional lubrication and providing permanent lubrication. They can withstand high temperatures up to 200°C.

3. The blade shaft is made of 12-grade galvanized round steel or stainless steel round steel.

4. When the valve width (W) exceeds 1200 mm, a central partition is added to separate the blades, serving to reinforce the structure.

5. Flange types include flush flanges (welded), angle steel flanges, and flat bar flanges.

6. The actuator can be selected as either a handle type or a worm gear type.

7. The explosion-proof valve housing is made of galvanized steel plate, and the blades are made of aluminum plate.