Non-Retrun Damper

Non-Retrun Damper

1. Features
The Non-Return damper are specially designed for sea emvironment, and made of steel material. The gravity damper could effictively prevent hydrosphere and salt fog, and work well in this environment im HVAC duct system and keep the positive pressure in control area in order to prevent the reverse air flow.
2. Type&Parameter

Type	axd	L	Flange size
VD-axd	100×100~800×800	100~200	According to GB1561-79

Note: Flange size of all dampers could be fabricated according to user's requirement.
3. Outline drawing

4. IACS Certificate: CE, KR, CCS, LR, DNV▪GL, ABS, BV