Marine Bronze Stop Valve Type A/AS

About product

The Marine Bronze Stop Valve Type A/AS is a versatile valve designed for use in marine applications. It is available in a vertical SDNR (Straight Double Non-Return) configuration, providing reliability and efficient flow control. The valve is carefully manufactured using high-quality materials such as Marine Bronze, Stainless Steel, and Copper, ensuring durability and longevity in marine environments.

Our Ship Stop Check Valve is available in vertical SDNR (Straight Double Non-Return) configuration. It is manufactured using Marine Bronze/Stainless Steel/Copper materials and comes with CCS, BV, ABS, LR, DNV-GL, and RINA certification.

Additional information







Product Detail


Our Ship/Vessel/Boat Stop Check Valve is available in vertical SDNR (Straight Double Non-Return) configuration. It is manufactured using Marine Bronze/Stainless Steel/Copper materials and comes with CCS, BV, ABS, LR, DNV-GL, and RINA certification.

Our Ship/Vessel/Boat Stop Check Valve is carefully polished and tested before leaving the factory to ensure its performance.

The use of Copper and Marine Bronze/Stainless Steel/Steel materials ensures extended longevity for your pipes and containers.

A Stop Check Valve is a type of valve where the closure element (valve disc) moves along the centerline of the valve seat.

The opening of the valve seat is directly proportional to the travel of the valve disc.

Due to the relatively short opening and closing stroke of the valve stem and its reliable shut-off function,

as well as the direct relationship between the opening of the valve seat and the travel of the valve disc,

this type of valve is ideal for flow regulation.

Therefore, this valve is well-suited for use as a shut-off or regulating/throttling device.

Advantages of Ship/Vessel/Boat Stop Check Valves:

Lower friction between the valve disc and the sealing surface compared to gate valves, resulting in better wear resistance.
Smaller opening height, typically only 1/4 of the valve seat passage diameter, making it more compact than gate valves.
Usually, there is only one sealing surface on the valve body and valve disc, making it easier to manufacture and maintain.
However, it is important to note the disadvantages of Stop Check Valves.

The main drawback is their relatively high flow resistance coefficient, leading to pressure loss, particularly noticeable in hydraulic systems.

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Know Who We Are

About our company

Zava Marine Corporation is a leading supplier of marine parts and components. With a strong focus on quality and customer satisfaction, we specialize in providing a comprehensive range of high-quality marine equipment and accessories. Our products include deck equipment, ship accessories, and various other essential components needed for smooth maritime operations.

With a global presence, we serve a diverse customer base, including shipbuilders, shipowners, offshore operators, and marine equipment distributors. We are committed to providing exceptional service and tailored solutions to meet our customers’ unique needs.


Zava Marine offers a comprehensive range of certifications for marine parts in accordance with international standards and regulations. These certifications include those provided by renowned marine classification societies such as Lloyd’s Register (LR), Bureau Veritas (BV), China Classification Society (CCS), Registro Italiano Navale (RINA), American Bureau of Shipping (ABS), Nippon Kaiji Kyokai (NK), and Det Norske Veritas – Germanischer Lloyd (DNV-GL). By collaborating with these esteemed societies, Zava Marine ensures that our certified marine parts meet the highest standards of safety, quality, and performance, instilling confidence in our reliability and compliance within the maritime industry.

The warranty provided by Zava Marine covers defects in materials and workmanship for a period of two years from the date of purchase. During this warranty period, if any marine parts purchased from Zava Marine exhibit issues or failures resulting from manufacturing defects or faulty materials, Zava Marine will take responsibility for repair or replacement of the affected parts. 

Zava Marine has recently opened new molds for European and North American clients, utilizing materials such as metal, ABS, PVC, and more. These successful mold opening projects allow us to provide customized marine parts and components that meet the specific requirements of our clients in these regions.

Typically, Zava Marine can ship samples within 7 days once the product drawing has been mutually confirmed by both parties. This efficient process ensures that customers can receive samples promptly, allowing them to assess the quality and suitability of the products.

Zava Marine frequently utilizes a wide range of materials in our projects. These materials include aluminum, stainless steel, carbon steel, copper, plastics, titanium, and PEEK (Polyether Ether Ketone). Each material offers unique properties and characteristics suitable for various marine applications. 

Yes, we provide customization services for marine parts. We understand that every project and application may have unique requirements, and we are committed to delivering tailored solutions. By collaborating closely with our clients, we can adapt our products to specific specifications, ensuring optimal fit, performance, and compatibility. Whether it’s modifying existing designs or creating entirely new parts, our customization services cater to the diverse needs of the maritime industry.

Absolutely! We offer product design and development services to support our clients’ needs. Our experienced team of engineers and designers can collaborate with clients from concept development to final product realization. By leveraging our expertise in marine engineering and design, we can provide valuable insights and innovative solutions. Whether it’s optimizing existing designs or creating entirely new products, we are equipped to assist clients in bringing their ideas to life efficiently and effectively.

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