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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, is proud to present our Cast Aluminum Alloy Marine Air Vent Head. As a dedicated manufacturer with an annual export value of US$1–1.5 million, we supply reliable ventilation solutions to global markets including North America, Europe, and Southeast Asia. This air vent head is meticulously engineered to meet marine industry standards, offering superior corrosion resistance and reliable performance in harsh saltwater environments.
Our marine air vent head is designed to efficiently release air from pipelines and tanks while preventing the ingress of seawater and debris. The cast aluminum alloy body ensures lightweight yet durable construction, reducing load on vessel structures. With standard compliance and rigorous quality control, this product delivers consistent functionality for bilge systems, fuel tanks, and water tanks on ships and offshore platforms.
Key Features & Technical Specifications
- Material: High-grade cast aluminum alloy (LM6 or equivalent) with natural anti-corrosion properties.
- Design: Compact, streamlined head with internal baffle to prevent water splash-back.
- Sealing: EPDM or NBR gasket for leak-proof operation (optional silicone available).
- Working Pressure: Up to 0.2 MPa (29 psi) – standard range, higher on request.
- Temperature Range: -20°C to +80°C, suitable for most marine applications.
- Installation: Flanged or threaded connection, easy to retrofit or replace existing vents.
- Standards: Compliant with marine classification society requirements (ABS, DNV, BV, etc.) as per customer specification.
| Nominal Size (DN) | 50, 80, 100, 150, 200, 250, 300 |
| Flange Standard | JIS 10K / DIN PN10 / ANSI 150 lbs (optional) |
| Net Weight (DN100) | Approx. 2.5 kg |
| Certification | ISO9001:2015 (Quality Management System) |
Advantages for Your Marine Operations
- Corrosion Resistance: Cast aluminum alloy naturally withstands salt spray and humidity, extending service life compared to cast iron or steel vents.
- Lightweight: Reduces structural load and simplifies installation, especially on smaller vessels.
- Low Maintenance: Self-cleaning design minimizes clogging, and the smooth interior surface prevents residue buildup.
- Versatile Application: Suitable for fuel oil, lube oil, fresh water, and ballast water tanks, as well as non-corrosive gas systems.
- Customization: Available in various sizes, connection types, and colors to match your specific requirements.
Trust & Partnership
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a reliable valve manufacturer since 2016, with an annual export value exceeding US$1 million. Our ISO9001 certification ensures consistent quality control from raw material procurement to final inspection. We serve a wide range of markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. With convenient shipping ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we deliver timely solutions to customers worldwide.
Our team of experienced engineers is ready to assist with technical inquiries and customized designs. Whether you need standard air vent heads or special sizes for retrofitting existing vessels, Zhibang Valve offers competitive pricing, fast delivery, and after-sales support. Contact us today to discuss your marine ventilation needs and request a quotation!
Frequently Asked Questions (FAQ)
Q1: What is the main material of your marine air vent head?
A: Our vent head is made of high-quality cast aluminum alloy, which provides excellent corrosion resistance in marine environments. Optional stainless steel or bronze versions are available upon request.
Q2: Is this product suitable for both fresh water and fuel oil tanks?
A: Yes, the standard design is compatible with fresh water, ballast water, fuel oil, and lube oil. For aggressive chemicals, please consult our engineers for custom gasket materials.
Q3: Can you provide certificates of compliance with classification societies like ABS or DNV?
A: Yes, we can supply material certificates and, upon request, arrange third-party inspection to meet ABS, DNV, BV, or other classification society requirements.
Q4: What are the available connection types?
A: Standard connections include flanged (JIS, DIN, ANSI) and threaded (NPT/BSP). Other custom connections can be manufactured per your specifications.
Q5: How do I install the air vent head correctly?
A: Installation is straightforward: ensure the mounting surface is flat and clean, place the gasket, and tighten bolts evenly. Detailed installation instructions are provided with each shipment.
Q6: What is the typical lead time for an order?
A: For standard sizes, lead time is 15–25 working days. Custom orders may require 30–45 days. We also offer expedited shipping options for urgent needs.
Q7: Do you offer samples for testing?
A: Yes, sample orders are welcome. We charge a sample fee and can refund it upon bulk order placement. Please contact our sales team for details.
Q8: What is your warranty policy?
A: We provide a 12-month warranty against manufacturing defects from the date of shipment. Any issues arising from improper installation or misuse are not covered.
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