User friendly ,easy to remove ,restructuring,and cleaning. PP material,acid and alkali resistance, corrosion resistance. It has the air flow knob and you can control the air fiow The distance between the fixed bottom and the frame upside in adjustable with adjustable range from 990mm to 1450mm. The activity range is large ,central of the fixed frame, with a radius of 1440 mm 360 degrees rotation; Highly stroke can be in the range of 720 mm free expansion, arbitrary positioning;
1. According to the workplace and the installation position of indoor environment choose extraction hood, fixed at the top of a smallpox hole punch, with M8 expansion screw fixed frame fixed to the top of smallpox;
2. The exhaust duct inserted the expansion pipe fixed frame hole, pipe hoop lock expansion pipe and the exhaust duct, the decorative plate positioning screw;
3. Tighten the gas-collecting hood;
4. The outlet connection, connect the outlet and convulsions system;
5. When using optional smoke gas collecting cover, make its alignment convulsions, and regulate the
flow control knob. Turn adjusting knob after use, shut off the wind deflector, reset the gas-collecting hood fold.
6. The joints with pressure bearing and rubber ring, if loose joints, can be appropriate knob screw joint.
7. Push and pull the gas-collecting hood don’t too hard;
8. The expansion pipe with fixed frame in the vertical plane cannot exceed 90 degrees, otherwise rebound;
9. Installation height, smallpox and inspiratory mouth maximum vertical distance 2440 mm, the minimum 1710 mm.