MARINE & OFFSHORE EQUIPMENT

Dredging Equipment
- Dredge Rubber Hose
- Dredge Gate Valve
- Dredge Ball Joint
- Dredge PE Pipe & Dredge Floater
- Dredge Cutter Teeth
- Other Dredge Component
Marine Deck Machinery
- Marine Winch
- Marine Capstan
  - Marine Hydraulic Capstan
  - Marine Electric Capstan
- Marine Crane
- Marine Anchor Windlass
Marine Mooring Equipment
- Marine Anchor
- Marine Anchor Chain
- Marine Shackle
- Chain Chaser
- Marine Bollard
- Marine Chock
- Marine Fairlead
- Marine Chain Stopper
- Marine Mooring Reel
- Marine Towing Bracket
- Mooring Rope
- Marine Towing Hook
- Marine Shark Jaw
- Marine Fender
- Marine Buoy
- Marine Floating Pontoon Dock
Aquaculture Equipment
- Fishing Chains
- Fishing Nets
- Shrimp Peeling Machine
Marine Outfitting Equipment
- Marine Steel Grating Plate
- Marine Furniture
- Marine Chair
  - Passenger Chair
  - Pilot Chair
- Marine Door
- Marine Window
- Marine Ladder
- Marine Hatch Cover
- Marine Kitchen Equipment
- Marine Elevator
- Port Boarding Ladder
- Marine Wet Unit System
Marine Propulsion System
- Marine Rudder System
- Marine Shaft System
- Marine Tunnel Thruster
- Azimuth Thruster
- Marine Propeller
- Diesel Engine Parts
Marine Painting
Marine Auxiliary Machinery
- Marine Air Compressor
  - Marine Air Cooled Air Compressor
  - Marine Water Cooled Air Compressor
- Marine Air Receiver
  - Marine Horizontal Air Receiver
  - Marine Vertical Air Receiver
- Marine Sewage Treatment Plant
- Marine Diesel Generator Set
- Marine Oil Water Separator
- Ballast Water Management System
  - UV Ballast Water Management System
  - Nitrogen Ballast Water Treatment System
- Marine Hydrophore
- Marine Calorifier
- Seawater Desalination Plant
- Marine Oil Separator
- Marine Fuel Oil Supply Unit
- Marine Heat Exchanger
  - Shell and Tube Exchanger
  - Plate Heat Exchanger
- Marine Hot Well Unit
- Marine Incinerator
- Marine Boiler
Marine Valve
- JIS Marine Valve
- DIN Marine Valve
- ANSI Marine Valve
- GB Marine Valve
- CB Marine Valve
- CBM Marine Valve
- Marine Gate Valve
- Marine Globe Valve
- Marine Angle Globe Valve
- Marine SDNR Valve
- Marine Angle SDNR Valve
- Marine Check Valve
- Marine Storm Valve
- Marine Butterfly Valve
- Marine Quick Closing Valve
- Marine Fire Valve
- Marine Self Closing Valve
Marine Valve Accessories
- Air Vent Head
- Marine Filter
- Marine Mud Box
- Marine Strum Box
- Deck Control Unit
- Marine Scupper
- Marine Sight Glass
- Marine Level Gauge
- Marine Level Switch
- Marine Flow Meter
- Others
Marine Pump
- Marine Centrifugal Pump
  - Marine Horizontal Centrifugal Pump
  - Marine Vertical Centrifugal Pump
- Marine Screw Pump
  - Marine Single Screw Pump
  - Marine Double Twin Screw Pump
  - Marine Three Screw Pump
- Marine Gear Pump
- Marine Vortex Pump
- Marine Ejector Pump
- Marine Diaphragm Pump
- Marine Piston Pump
- Marine Fire Pump
- Marine Emergency Fire Pump
- Marine External Fire Pump
- Marine Ballast Water Pump
- Marine Fuel Pump
- Marine Lubricating Oil Pump
- Marine Bilge Pump
- Marine Sewage Pump
- Marine Domestic Water Pump
- Marine General Pump
- Marine Cargo Oil Pump
- Marine Hand Pump
- Marine Pump Parts
  - Marine Pump Casing
  - Marine Pump Impeller
  - Marine Pump Shaft
  - Marine Pump Cover
Marine Life-saving Equipment
- Life Boat And Davit
- Life Raft
- Marine Davit
- Life Jacket
- Life Accessories
- Inflatable boat
- Marine Life-saving Immersion Suit
- Life Buoy
Fire-fighting Equipment
- Fire Monitor
- Fire Extinguisher Filling Machine
- Fire Extinguishing Agent
- Fire Hose
- Air Breathing Apparatus
- Fire Fighting System
Marine Cable
- Marine Power Cable
  - DIN 89158/89160 Marine Power Cable
- Marine Control Cable
- Marine Telecommunication Cable
Marine Electrical Equipment
- Lighting Fixture
- Maine Wiper
- Marine Compass
- Marine Air Horn
Marine HVAC
- Marine Blower Fan
- Marine Ventilator
  - Marine Mushroom Ventilation
  - Marine Goose-neck Ventilation
- Marine Fire Damper
- Marine Damper
- Marine Fan Heater
- Marine Air Conditioner
- Marine Silencer
- Spiral Ducts and Fittings
- Ventilation Grille
- Diffuser
- Air Vent
Labour Protection Appliance
Marine Decorative Material
- Rock Wool Panel
- Aluminum Honeycomb Panel
- Marine Fire Proof Panel
- Marine Ceiling
- Marine Wall Panel
- Marine Floor
- Ceramic Tile
- Cabin unit
- Thermal Insulation Material
Marine Anode
Marine Pipe Fitting & Flange
- Marine Pipe Fitting
  - Tank Head
- Marine Flange
- Gasket
Marine Instrument
- Thermometer
- Pressure Gauge
- Marine Pressure Transmitter
- Level Transmitter
- Marine Level Gauge
- Marine Float Level Controller
- Flow Meter
- Marine Temperature Transmitter
Ship Building Equipment
- Shot Blasting Machine
- Plate Rolling Machine
- Plate Shearing Machine
- Press Brake Machine
- Pipe Bending Machine
- Shipbuilding Plates
- Marine Steel Sections
- Marine Steel Pipes
- Marine Steel Sheet Pile
- Marine Steel Pipe Pile
- Marine Cutting Machine
- Marine Welding Machine

INDUSTRY EQUIPMENT

STOCK LIST

Stock List
- Marine Valve in Stock

Contacts

tel. Tel:+86-23-67956606
tel. FAX:+86-23-67956622
email Email:manager@cqhisea.com

Working Time: 9:00--17:00

Working Day: Monday to Friday Website: www.cqhisea.com

Home > Marine Damper

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

Non-Retrun Damper

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