MARINE & OFFSHORE EQUIPMENT
- Dredging Equipment
- Marine Deck Machinery
- 
					
						Marine Mooring Equipment					
					- 
								
									Marine Anchor								
                                - AC-14 HHP Anchor
- Admiralty Anchor
- Beldt Stockless Anchor
- Bruce Anchor
- Spek Anchor
- Danforth HHP Anchor
- Delta High Holding Power Anchor
- GB11579-89 Light Weight Anchor
- Hall Anchor
- High Holding Power Mastrosov Anchor
- Hot Dip Galvanized Anchor
- Japan Stock Anchor
- JIS Stockless Anchor
- Pool Anchor
- Single Fluke Anchor
- Stainless Steel Anchor
- Stevpris MK5 Anchor
- Stingray Anchor
- US Navy Stockless Anchor
 
- 
								
									Marine Anchor Chain								
                                
- 
								
									Marine Shackle								
                                - Kenter Shackle
- D Type Joining Shackle
- Pear Shaped Shackle
- Anchor Swivel Shackle Type A
- Anchor Swivel Shackle Type B
- Buoy Shackle Type A
- Buoy Shackle Type B
- C Type Detachable Connecting Link
- D Shackle
- Forelock Shackle
- Anchor Chain Swivel Group
- Straight Shackle
- Anchor Shackle
- Marine Triangle Plate
- Anchor Chain Swivel
- Anchor Chain Joining Shackle
- Anchor Chain End Shackle
- Slim Kenter 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
 
- 
								
									Marine Anchor								
                                
- Aquaculture Equipment
- Marine Outfitting Equipment
- Marine Propulsion System
- 
					
						Marine Painting					
					
- 
					
						Marine Auxiliary Machinery					
					- Marine Air Compressor
- Marine Air Receiver
- Marine Sewage Treatment Plant
- 
								
									Marine Diesel Generator Set								
                                
- Marine Oil Water Separator
- Ballast Water Management System
- Marine Hydrophore
- Marine Calorifier
- Seawater Desalination Plant
- 
								
									Marine Oil Separator								
                                
- Marine Fuel Oil Supply Unit
- Marine 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
- 
					
						Marine Pump					
					- Marine Centrifugal Pump
- Marine 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 Life-saving Equipment
- Fire-fighting Equipment
- Marine Cable
- Marine Electrical Equipment
- Marine HVAC
- 
					
						Labour Protection Appliance					
					
- Marine Decorative Material
- 
					
						Marine Anode					
					
- Marine Pipe Fitting & Flange
- Marine Instrument
- Ship Building Equipment
INDUSTRY EQUIPMENT
- Hoisting Equipment
- Welding Machine & Material
- 
					
						Cutting Machine					
					
- Container Securing Fitting
- Link Chain
- Container & Storage Equipment
- 
					
						Diesel Generator Set					
					
- Other Equipment and Tools
- Petrochemical Equipment
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- Polymer Materials
- Environmental Protection Series
- Geo-products and Building Materials
- Metal Mesh
- Steel Grating
- 
					
						Earthwork Teeth					
					
- 
					
						Turnbuckle					
					
STOCK LIST
Contacts
	 Tel:+86-23-67956606
 Tel:+86-23-67956606
 FAX:+86-23-67956622
 FAX:+86-23-67956622 
 Email:manager@cqhisea.com
 Email:manager@cqhisea.com 
 Working Time: 9:00--17:00
Working Day: Monday to Friday Website: www.cqhisea.com
	
	
	 
 
	
Gooseneck Ventilation
	 
 
Gooseneck Ventilation
Introduction:
Gooseneck ventilation, also known as gooseneck vents or gooseneck exhausts, refers to a type of ventilation system commonly used in buildings and structures to provide air circulation and control the flow of exhaust gases. The name "gooseneck" originates from the characteristic shape of the vent, which resembles the curved neck of a goose.
Gooseneck vents are typically made of metal, such as galvanized steel or aluminum, and are designed to be weatherproof and durable. They consist of a curved pipe that extends vertically from the building's roof and is open at both ends. The bottom end of the gooseneck vent is usually attached to an exhaust fan or other ventilation equipment, while the upper end is left open to allow the escape of stale air, smoke, fumes, or other unwanted gases.
The curved design of gooseneck vents serves multiple purposes. First, it helps to prevent rainwater or other precipitation from entering the ventilation system while still allowing air to flow freely. The curve directs the water away from the opening, reducing the risk of leaks or damage. Second, the shape of the vent helps to create a natural upward draft, enhancing the exhaust efficiency by utilizing the stack effect. As warm air rises, it creates a suction effect that draws in fresh air from the lower levels, improving ventilation and air circulation within the building.
Gooseneck ventilation is commonly used in various applications, including industrial buildings, commercial facilities, warehouses, kitchens, laboratories, and other spaces where proper air exchange and removal of pollutants or odors are essential. They are particularly useful in environments where exhaust fans or mechanical ventilation systems are installed to remove contaminants or maintain a comfortable indoor climate.
In addition to their functional benefits, gooseneck vents can also be aesthetically pleasing, as they can be customized to match the architectural style of the building. Different finishes, colors, and materials are available to ensure that the gooseneck vents blend seamlessly with the overall design while still providing efficient ventilation.
Overall, gooseneck ventilation systems play a vital role in maintaining air quality and promoting a healthy indoor environment by effectively removing unwanted gases and promoting proper air circulation.
Specification:
	 
	 
						DN 
					 
						airduct 
					 
						Cover  
					 
						padding 
					 
						press plate 
					 
						D 
					 
						t 
					 
						D1 
					 
						t1 
					 
						D1 
					 
						D2 
					 
						D2 
					 
						D3 
					 
						D4 
					 
						100 
					 
						108 
					 
						4 
					 
						118 
					 
						6 
					 
						118 
					 
						48 
					 
						48 
					 
						78 
					 
						63 
					 
						114 
					 
						6 
					 
						124 
					 
						8 
					 
						124 
					 
						54 
					 
						54 
					 
						84 
					 
						69 
					 
						8 
					 
						150 
					 
						159 
					 
						4.5 
					 
						170 
					 
						6 
					 
						170 
					 
						100 
					 
						100 
					 
						130 
					 
						115 
					 
						168 
					 
						6 
					 
						178 
					 
						8 
					 
						178 
					 
						108 
					 
						108 
					 
						138 
					 
						123 
					 
						8 
					 
						200 
					 
						203 
					 
						6 
					 
						213 
					 
						6 
					 
						213 
					 
						143 
					 
						143 
					 
						173 
					 
						158 
					 
						219 
					 
						6 
					 
						229 
					 
						8 
					 
						229 
					 
						159 
					 
						159 
					 
						189 
					 
						174 
					 
						8 
					 
						250 
					 
						245 
					 
						6.5 
					 
						255 
					 
						6 
					 
						255 
					 
						185 
					 
						185 
					 
						215 
					 
						200 
					 
						273 
					 
						6.5 
					 
						283 
					 
						8 
					 
						283 
					 
						213 
					 
						213 
					 
						243 
					 
						228 
					 
						8 
					 
						300 
					 
						299 
					 
						7.5 
					 
						309 
					 
						6 
					 
						309 
					 
						239 
					 
						239 
					 
						269 
					 
						254 
					 
						325 
					 
						7.5 
					 
						335 
					 
						8 
					 
						335 
					 
						265 
					 
						265 
					 
						295 
					 
						280 
					 
						9 
					
		
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
				
					 
			
				 
		
	
					 
			
 
 
								
 
                                 
                                 
                                 
                                