Marine Air Vent Head

Your Professional Marine Air Vent Head Supplier

Qingdao Keysmile Valves Co. Ltd. is a diversified manufacturing company located in the Environmental Protection Industrial Park of Jimo District, Qingdao, China. Our core expertise and primary focus lie in precision sheet metal fabrication and marine valves.
We specialize in the production of high-quality hardware components and parts for a wide range of industries. Our capabilities include crafting components from various materials, including steel, iron, steel, and aluminum, through processes like cutting, bending, punching, and assembling. We are particularly well-known overseas for manufacturing various brackets, charging piles, furniture hardware, public facilities industry, various cabinets, trailer compartments, etc.

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Marine Cast Iron Air Vent Head

Valve body material：Cast Iron. Type : JIS-KS91A-121/53-NO/DIN. Nominal pressure： (PN).

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Gooseneck Type with Marine Air Vent Head

Valve body material：Cast Iron. Type : . Nominal pressure： (PN). Nominal diameter：50A-200A

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Marine Welding Air Vent Head [disc Type]

Valve body material：Cast Iron. Type : Disc Type. Nominal pressure： (PN). Nominal

Why choose us

01/

Comprehensive Quality System Assurance
The company is ISO 9001 certified and strictly implements process control and data traceability. From raw material inspection and production monitoring to final product testing, detailed records are kept to ensure consistent quality and a high pass rate for every batch.

02/

High-Precision Machining and Reliable Performance
Equipped with advanced CNC machining equipment and testing instruments, and supported by an experienced technical team, we can achieve micron-level precision control. Our metal components meet the stringent requirements of European and American customers in terms of strength, wear resistance, and dimensional accuracy.

03/

Efficient and Stable Delivery Capability
With a lean production system and intelligent scheduling management, we ensure visualization and efficient coordination throughout the production process. Even for large-volume orders, we guarantee on-time delivery and stable quality, meeting the continuous supply demands of long-term partners.

04/

Flexible Customization and Technical Support
We not only process parts according to customer drawings (DWG, STEP, PDF, etc.), but also provide structural optimization and process improvement suggestions to help customers reduce costs and improve assembly efficiency — truly delivering a one-stop service from prototyping to mass production.

Dimensions - unit:mm

SIZE	D1	D2	D3	HT	H1	T	N	A	A3	R	WEIGHT
50A	50	105	130	175	127	14	4-Φ15	179	139	135	7.4
65A	65	130	155	204	164	14	4-Φ15	205	160	146	12.6
80A	80	145	180	244	176	14	4-Φ15	237	188	156	16
100A	100	165	200	220	160	16	8-Φ19	245	155	250	23
125A	125	200	235	250	180	16	8-Φ19	270	180	288	34
150A	150	230	265	285	208	18	8-Φ19	316	216	330	47
200A	200	280	320	365	269	20	8-Φ23	394	174	432	72
250A	250	345	385	430	314	22	12-Φ23	485	325	546	120
300A	300	390	430	530	367	22	12-Φ23	550	384	616	178
350A	350	435	480	570	415	24	12-Φ25	661	425	714	196
400A	400	495	540	640	475	24	16-Φ25	703	457	749	235
450A	450	555	605	713	522	24	16-Φ25	816	510	836	298

Product Structure Drawing

p20250625095421fb908.jpg (1200×700)

Material List

Parts	Material
Body	FC200
Top Cover	SS400
Side Cover	SS400
Disc	SUS304
Wire Mesh	SUS304
Bolt	SUS304
Guide Bar	SUS304
Seat Packing	N.B.R
Top Packing	N.B.R
Disc Packing	N.B.R

Key features of our air vent heads

》IMO 3573 type approved (watertight) for maximum leakage protection and loadlines.
》Constructed from seawater resistant alumnium for outstanding corrosion resistance.
》5-year full maintenance free warranty if fitted according to our Fitting Instructions.
》Stainless Steel (Corrosion-free) bolts - specially coated to prevent oxidation
》Lightweight, robust and low-maintenance
》Rapid delivery: standard models ship in 1 working day, custom versions within 5 days

Main material

(1). Body: FC200(Cast Iron) ;
(2). Float Disc: SS304 ;
(3). Rubber Ring: NBR ;
(4). Screen: SS304 ;
(5). Cover: Carbon Steel with Galve or Stainless Steel SS304.
(6). Medium: Oil tank / water tank
(7). Paint color: According to customer requirements
(8). Place of use: Shipbuilding / ship repair / other accessories

Packing and Shipping For Air Vent Head

The Marine Air Vent Head is packaged and shipped in a sturdy cardboard box. It is also wrapped in a protective bubble wrap for added security. The box is labeled with the product name and a shipping label with the destination address. The box is sealed with packing tape to ensure that the product remains secure during transit.

Fully certified for global classification

Our vent heads meet the requirements of major classification societies including DNV, ABS, Bureau Veritas, RINA, and Lloyd’s Register. All units come with full documentation and certificates.

FAQ

Q: Can I have my own customized product?

A: Yes,your customized requirements for color,size,package, mark,etc.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock.or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? Is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: 30%T/T in advance,balance before shipment.

We're professional marine air vent head manufacturers and suppliers in China, specialized in providing high quality customized service and OEM service. We warmly welcome you to buy high precision marine air vent head at the best price from our factory.

Gooseneck Type with Marine Air Vent Head, marine air vent head, Marine Cast Iron Air Vent Head